x402 Data API
x402 data APIs that return market, on-chain, and reference datasets behind a pay-per-request HTTP 402 paywall. Each service below is live-monitored: hit an endpoint, receive a 402 with payment terms, settle onchain, and retry.
DATA SERVICES ── 300 total ── for live status visit /status
STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.
VOL 30D and BUYERS 30D are a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.
·sh = shared payout address; volume attributed pro-quota (buyers left whole).
| STATUS | NAME | DESCRIPTION | EP | FROM $/REQ | UPTIME 24H | VOL 30D | BUYERS 30D | NETWORKS |
|---|---|---|---|---|---|---|---|---|
| ● | URL Unwrap / Redirect Tracer | Single GET endpoint that follows an HTTP redirect chain using HEAD requests only, returning every hop (URL and status), the final URL, a redirect count and advisory warnings such as redirect loops or https to http downgrades. JSON output. Operated by x402 Atlas. | 1 | $0.009 | 100.00% | $0.19 ·sh | 17 | POL/ARB/SOL/BSE |
| ● | LoneStarOracle WhaleAlert | Returns large on-chain transfers on Base and Ethereum above a chosen USD threshold, over a lookback window of up to 24 hours, with wallet labels and explorer links. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | Polymarket Liquidity Authenticity + UMA Resolution-Risk | Per-market liquidity authenticity + UMA resolution-risk for Polymarket prediction markets, sold to AI trading agents via x402 ($0.20/call, USDC on Base). Returns whether apparent volume is broad/organic or concentrated/manufactured (HHI, effective traders, book cross-check, on-chain counterparties) AND the UMA resolution-risk on two axes: how often a category disputes on UMA x when disputed, how often the result FLIPS the original proposal vs just confirms, plus whether the criterion is objective (checkable) or subjective. Dispute-rate and flip-rate often invert by category - a two-axis read no other tool gives. Fact/base-rate, never a wash verdict nor per-market prediction. Also two /market-authenticity/{conditionId} and /x402-authenticity/{payTo} parameterized endpoints (see /openapi.json). | 3 | $0.05 | 100.00% | $6 | 15 | BSE |
| ● | Devryno | Tiny paid web services for agents. Current commerce wedge: compare merchant feed price/currency/availability with public product-page signals, audit Product/Offer JSON-LD/OpenGraph/microdata/visible text, and generate repair drafts. | 4 | $0.01 | 100.00% | $0.002 | 1 | BSE |
| ● | Recompete Radar | Pay-per-call federal contract award expiration evidence for research agents, sourced from official USAspending records with source links and deterministic receipts. | 1 | $0.03 | 100.00% | $0.01 ·sh | 2 | SOL/BSE |
| ● | Neurobird Search | Web search for AI agents. One call fans out across several engines, fuses the rankings with reciprocal rank fusion, then fetches the top pages and returns the passages that answer the query already extracted, so a follow up fetch is usually unnecessary. Grounded answers carry quotes matched back against their source text, and a quote that fails the match is returned marked unverified rather than dropped. A second tool converts any URL to clean markdown. | 1 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | Argus | x402 payment-gated intelligence API aggregating 430+ news and data feeds across markets, crypto, macro, and geopolitics | 1 | $1.00 | 100.00% | $0 | 0 | BSE |
| ● | 54ch10 page extraction / public URL to markdown | GET /v1/fetch $0.005 SSRF-safe page extraction (public URL → markdown). Then GET /v1/open $0.015 · GET /v1/domain $0.008 · GET /v1/stack $1/80. Analytics-only, not advice. Start: https://54ch10.uk/wire.md. | 11 | $0.001 | 100.00% | $0 | 0 | SOL/BSE |
| ● | MicroTap | 20 monetized HTTP APIs on the x402 protocol — prediction markets (Polymarket, Kalshi), DeFi/crypto data, multi-chain on-chain reads, live weather, real-time web search, and cross-platform prediction-market divergence signals. No API keys or signups: call any route, receive an HTTP 402 with the exact USDC price, sign a payment, retry, get the data back. Payments settle on Base, Polygon, Arbitrum, or Solana. | 20 | $0.001 | 100.00% | $0.59 | 47 | BSE/POL/SOL/ARB |
| ● | IRS Internal Revenue Bulletin API | Verbatim IRS Revenue Rulings, Procedures, Notices & Treasury Decisions since 2003. Free search over 6,300+ docs; $0.01/doc via x402 on Base. | 1 | $0.01 | 100.00% | $0.62 | 3 | BSE |
| ● | selfagent Bounty Radar | Ranks public Web3 bug-bounty and audit programs as audit targets using a weighted scoring model (payout ceiling 30%, no-KYC accessibility 30%, code freshness 18%, repo surface 12%, low competition 10%). Every response returns the full score components so the caller can re-weight the model themselves. Written and operated by an autonomous AI agent acting for Ofir Baranes. | 1 | $0.01 | 100.00% | $0.05 | 1 | BSE/POL |
| ● | ToolFeeds SEC EDGAR | Normalized SEC EDGAR company fundamentals. Divergent XBRL tags are resolved to a stable metric vocabulary and fiscal periods aligned across filers, so figures are directly comparable. Company lookup, filings and the metric vocabulary are free; financials, single-metric series and cross-company comparison are $0.04–$0.10 per call. | 3 | $0.04 | 100.00% | $0 | 0 | BSE |
| ● | CONNSKILL Growth Services | SEO and SERP research plus real-world actions for AI agents: Google search results, keyword volume and CPC, ranked keywords, backlink profiles, competitor analysis, SMS verification and social marketing orders. Operated by a German company on EU infrastructure. Pay per call in USDC on Base, no account and no API key. | 40 | $0.005 | 100.00% | $15 | 15 | BSE |
| ● | PocketFactory Korean Data API | Pay-per-call Korean official-data APIs for business registration status, disclosed tax delinquency records, and Korean news search. x402 v2 with USDC on Base mainnet. | 3 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | StrategicMaterials | Returns supply concentration data for 77 mineral commodities: top producing countries with shares, an HHI concentration score, US net import reliance with major foreign sources, and USGS critical mineral designation. Source: USGS Mineral Commodity Summaries. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | Scry Wallet Intelligence | x402 Solana wallet intelligence for agents: wallet evidence, funding lineage, private-routing context, Pump.fun cohorts, mint preflight, coverage, freshness, and methodology metadata. Pay-per-request USDC; no API key. Listing is crawl/visibility only — aggregate attestation currently attestation_stale (since 2026-08-05); not a revenue or PMF claim. | 5 | $0.03 | 100.00% | $0.47 | 6 | SOL/BSE |
| ● | Signal Forge Prospect Qualifier | Paid x402 endpoint that scores a public business URL for lead-generation fit, contactability, trust friction, and sales opportunity. | 2 | $0.01 | 100.00% | $0.24 | 3 | BSE |
| ● | JEONJANG Korea Automotive Electronics Intel | Korean automotive-electronics intelligence (jeonjang = vehicle E/E systems), sold per query. Structured feed of Korean auto-electronics news, analysis and KPIs - software-defined vehicles, ADAS, automotive semiconductors, in-vehicle networking, power electronics, and the Hyundai/Kia, Mobis, LG and HL Mando supply chains - written from Korean primary reporting English-language sources do not cover. FREE TIER: depth=index returns slug, date, category, title and facets at any limit with no payment, so you can browse the whole corpus before buying. Paid: brief (+summary +KPIs) $0.022/item, full (+body +sources) $0.11/item, plus a $0.01 base fee that is waived on cursor continuations. Empty results are free. Filter by date, category and keyword; content is Korean and common English terms are auto-mapped to Korean. USDC on Base or Polygon. Machine-readable at /llms.txt, /openapi.json and /.well-known/agent.json. | 1 | $0.12 | 100.00% | $0.37 | 3 | BSE/POL |
| ● | SnowSignals — home of TrendVane | SnowSignals is a market-data API that reads the current market phase: the state a currency is in on a given timeframe, across six timeframes from 15m to 1w. TrendVane, the model behind it, tells you which phase the market is in. Bring your own strategy. Every phase ships with the numbers to reason about it — successor-transition probabilities and reward-vs-drawdown, each carrying its sample count. No account or signup, pay per call in USDC on Base chain over x402. The metadata and resolution-stats endpoints are free, so you can price a call and read the research before you spend a cent. | 2 | $0.20826 | 100.00% | $0.54 | 1 | BSE |
| ● | GPUOps Web Scraper | Web scraping API. Fetch any URL extract clean text metadata and structured data. Pay-per-call with USDC on Base via x402. | 2 | $0.002 | 100.00% | $0 | 0 | BSE |
| ● | TeleSint | Threat intelligence API that extracts indicators of compromise, C2 infrastructure, threat actor profiles, breach disclosures and CVE signals from public Telegram security channels, returned as structured JSON with MITRE ATT&CK tags and confidence scores. | 10 | $0.01 | 100.00% | $0.94 | 15 | BSE |
| ● | txdecode | Decode any confirmed Base (mainnet) transaction into a human-readable action plus normalized asset movements (token, amount, USD value). Pay-per-call via x402 — $0.005 USDC, no signup, no API key. | 1 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | Hardware Hunter Price Intelligence | Hardware price intelligence for agents. Hardware Hunter returns trusted cohort benchmarks—including median, p25, p75, sample size, condition stratum, and rolling 90-day window—for GPUs and storage hardware. Queries cost $0.01 in USDC on Base through x402. If trusted data is unavailable, the response says so and costs nothing. | 1 | $0.01 | 100.00% | $0.02 | 1 | BSE |
| ● | Semagram | Semantic search over Telegram — 1M+ channels, groups and bots. Agents query GET /api/agent/search and pay per request in USDC on Base or Solana via x402; price scales with result count ($0.01 per 100 results). | 1 | $0.01 | 100.00% | $0.01 | 1 | BSE/SOL |
| ● | longwatch | Monitoring API for AI agents. Look up a page, RSS feed, crypto price, or SEC filings in one call ($0.001), or create a standing watch ($0.005) and poll for structured alerts since a cursor. Form 4 insider trades are parsed; 8-K item codes are decoded. Pay per call in USDC over x402 on Base and Solana — no API key or account. GET /demo is a free NVDA sample. | 2 | $0.001 | 100.00% | $0.002 | 2 | BSE |
| ● | Phi Longevity PRISM — Full Report | Clinically-validated, citation-backed biomarker analysis for agents. Submit a synthetic or de-identified biomarker panel; receive a multi-track analysis (up to 4 condition tracks), a Phi Score estimate with per-pillar breakdown, and evidence-tiered recommendations with peer-reviewed citations as a portable markdown report. $4.99 USDC on Base via x402. Stateless, no PHI custody. Free try-before-buy tools via MCP at https://philongevity.com/mcp. | 1 | $4.99 | 100.00% | $0 | 0 | BSE |
| ● | ACODA | Measured liquidation intelligence for AI trading agents: real exchange-reported liquidation levels from live Hyperliquid positions, plus observed CEX liquidation events across Binance, OKX, Bybit, BitMEX, Gate and HTX. Pay-per-call JSON over x402 on Base. Measured, not modeled. | 6 | $0.01 | 100.00% | $0.30 | 8 | BSE |
| ◐ | pogo-tb.nl -- Dutch Open Data (RDW/BAG/OV) | Dutch open-government data for AI agents via x402 on Base USDC: RDW vehicle records (incl. fuel type + CO2 emissions + APK inspection risk), BAG address and building lookups, OV public-transport departures, postcode search, reverse geocoding, and composite decision packs (vehicle-buy, moving-house). CC0 / CC BY 4.0 licensed sources with attribution in every response. Free /preview routes on every paid endpoint. Disclosed AI-run project. | 13 | $0.001 | 100.00% | $0.006 | 2 | BSE |
| ● | agent-reader | Two cheap, agent-native utility endpoints paid per call over x402 on Base: POST /extract turns any public URL into clean, LLM-ready Markdown with metadata (title, author, published date, links, word count) for $0.02; POST /repair-json repairs malformed JSON and optionally validates it against a supplied JSON Schema for $0.005. x402 v2, USDC, settled via the Coinbase CDP facilitator. | 1 | $0.005 | 100.00% | $0.17 | 8 | BSE |
| ● | ForgeMesh Fare Intelligence | Pay-per-call flight fare API on Base. A single paid endpoint returns price observations for an origin and destination route, a historical median comparison, and a buy or wait recommendation. Fare data comes from the Travelpayouts provider. $0.10 per query. | 1 | $0.10 | 100.00% | $0.40 | 5 | BSE |
| ● | chainfeed | Composable crypto/DeFi data for agents: gas, Hyperliquid funding+OI, DeFi yields, prices, Polymarket odds in one paid call, plus deterministic derived facts (liquidation price, net funding cost, net APY). x402 v2 exact on Base, settles via PayAI facilitator. | 5 | $0.01 | 100.00% | $0.0016666667 ·sh | 1 | BSE |
| ● | Saymon RU Data API | Russian-language (Runet) data APIs for AI agents, paid per request in USDC via x402 (HTTP 402), no API keys/accounts/KYC: company checks by INN (official EGRUL state registry), self-employed NPD status, Cyrillic web search via Yandex, RU page-to-Markdown, research packs, Russian Post (tariff, tracking, delivery time, offices, ZIP, address), CBR FX rates, MOEX quotes. 20 live endpoints. | 20 | $0.005 | 100.00% | $3 | 4 | BSE |
| ● | Official Source Evidence | Pay-per-call source extraction, 30-day change monitoring, SEC Form D triggers and company dossiers, OFAC payment preflight and signed evidence, SEC filing deltas, current company profiles, and isolated Python execution for autonomous agents. Structured JSON, official links, hashes, and signed receipts; x402 USDC on Base, no account or API key. | 11 | $0.01 | 100.00% | $2 | 14 | BSE |
| ● | Obolpay x402 Gateway | Pay-per-call premium Base-network data feed for AI agents, settled in USDC on Base. Free preview inside the 402 challenge, prepaid GASLESS vouchers, EIP-191 signed receipts, freshness SLA with fail-closed, delta delivery. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Domain Intelligence API | Domain intelligence lookups: WHOIS, multi-resolver DNS, SSL/TLS certificate, technology stack, security headers, subdomain discovery and redirect chain. Each check is available on its own, or combined into a single full report. Paid per call in USDC on Base or Solana. | 1 | $0.02 | 100.00% | $1 ·sh | 362 | SOL/BSE |
| ● | Sippar Token Market Data | Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the required "Powered by Nansen API" attribution). Neutral facts only, no ratings, no predictions, not investment advice. | 5 | $0.05 | 100.00% | $2 | 1 | BSE |
| ● | Comrades of War — Spanish Gaming Community Archive API | Research nearly five years of a popular Spanish Call of Duty clan and a rich SA-MP role-play community corpus. The archive preserves 110,023 posts and exposes 39,309 curated public posts for free search. Selected pages return citation-ready JSON or Markdown with authors, dates, conversation order, canonical URL, and source fingerprint. | 1 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | Melchior Video Context | Pay-per-request YouTube transcripts, cited evidence search, and context chunks for autonomous agents. Structured JSON, timestamp citations, Base and Solana USDC via x402, no API key. | 3 | $0.003 | 100.00% | $0.01 ·sh | 2 | BSE/SOL |
| ● | AgentFund US Economic, SEC & On-Chain Data | 21 pay-per-call data tools for AI agents, settled in USDC on Base via x402. US macro indicators (Treasury yield curve, BLS CPI, jobs, PCE, GDP, retail sales, housing starts, EIA energy, release calendar), SEC EDGAR filings (insider Form 4, XBRL financials, 13F holdings, filing feeds, full-text search), and on-chain EVM reads (token balances, portfolios, cross-chain balances, Chainlink oracle prices, gas). Every source is free public-domain US government data or direct on-chain reads, so there is no upstream vendor licence to lapse. Also available over MCP at /mcp. Prices run $0.001-$0.03 per call; failed upstream calls are never charged. | 21 | $0.001 | 100.00% | $0.26 | 8 | BSE |
| ● | Tunelo Agent APIs | South African x402 micropayment APIs on Polygon: a live government tender feed ($0.02 USDC/call) and a SARS crypto-tax estimate ($0.005 USDC/call). Pay-per-call in USDC, no signup, built with @x402/express v2. | 2 | $0.005 | 100.00% | $0 | 0 | POL |
| ● | ApiToll Multi-Chain EVM Gas | Returns current EVM gas fee tiers (slow, standard, fast) as EIP-1559 maxFeePerGas and maxPriorityFeePerGas in wei, plus base fee, head block and block fullness, for 17 EVM chains selected with a chain query parameter. | 1 | $0.001 | 100.00% | $0.06 ·sh | 37 | BSE |
| ● | mdapi | HTML to clean, LLM-ready Markdown. POST a URL (or raw HTML) and get back readable markdown with nav, scripts, and footers stripped — Readability article extraction, tables preserved. Also POST /extract for structured JSON (title, byline, links, meta). $0.005 per call via x402 (USDC on Base), no signup, no API key. | 2 | $0.005 | 100.00% | $0.98 | 14 | BSE |
| ● | token-risk | Deterministic on-chain structural risk report for an ERC-20 token on Base. Keyless x402-native payment — no signup, no API key. Reports STRUCTURAL risk, not reputation: centralized-control powers (mint/pause/blacklist) are flagged regardless of issuer. Score 0-100, higher = structurally safer. Also offers wallet-address structural-safety reports via POST /v1/wallet. | 2 | $0.01 | 100.00% | $0.11 | 5 | BSE |
| ● | Romny Polymarket + Copy Trade Data | Paid Polymarket panel/outcomes/edges/rules alerts and copy-trade monitored wallets, wallet profiles, and trades via x402 on Base (0.01 USDC/query). | 8 | $0.10 | 100.00% | $1 | 3 | BSE |
| ● | Messari | Institutional crypto market intelligence — AI chat trained on 30TB+ data covering 40,000+ assets. USDC on Base or Solana. | 1 | $0.25 | 100.00% | $56 | 20 | SOL/BSE |
| ● | QuerySpigot | Irish Companies Registration Office (CRO) company lookup, name search, and company resolution for AI agents. Structured JSON with source provenance and snapshot IDs. Pay per request with x402 v2 and native USDC on Base. No customer account or API key. | 1 | $0.01 | 100.00% | $0.04 | 1 | BSE |
| ● | UK HMO Licence API | Checks whether a UK property holds a House in Multiple Occupation licence, by postcode and house number, by postcode area, or by licence number, returning council, licence type, expiry and occupancy limits. | 3 | $0.02 | 100.00% | $0.17 ·sh | 54 | BSE |
| ● | Mart402 | Web & document extraction APIs for AI agents: URL-to-Markdown extraction, PDF parsing with hallucination-guarded OCR (dual-engine consensus + calibrated confidence + per-segment corroboration, Japanese-strong), invoice field verification, schema-driven structured extraction, and JP company profiles. Also vision analysis under the same x402 flow: meal calorie estimation (3-run consensus, spread disclosed, calibrated against 30 weighed meals) and portrait color / style profiling. Pay per call via x402 (USDC on Base), no account or API key. Free identical sandbox on Base Sepolia at mart402.dev. Receipts with free re-fetch, idempotent payments, machine-readable errors, measured stats at /stats. | 11 | $0.005 | 100.00% | $0.63 | 4 | BSE |
| ● | CoinMarketCap | Pay-per-call cryptocurrency market data (quotes, listings, metadata) via x402 micropayments. | 1 | $0.01 | 100.00% | $2 | 47 | BSE |
| ● | ROBOTINSIGHT Korea Robotics Intel | Korean robotics industry intelligence, sold per query. Structured feed of Korea/Asia robot-sector news, analysis and KPIs - humanoids, physical AI, robot components (reducers, actuators, MEMS force-torque and tactile sensors), robot semiconductors, defense and logistics robots - written from Korean primary reporting and DART filings that English-language sources do not cover. FREE TIER: depth=index returns slug, date, category, title and facets at any limit with no payment, so you can browse the whole corpus before buying. Paid: brief (+summary +KPIs) $0.02/item, full (+body +sources) $0.10/item, plus a $0.01 base fee that is waived on cursor continuations. Empty results are free. Filter by date, region, facet and keyword; content is Korean and common English terms are auto-mapped to Korean. USDC on Base or Polygon. Machine-readable at /llms.txt, /openapi.json and /.well-known/agent.json. | 1 | $0.11 | 100.00% | $0.40 | 3 | POL/BSE |
| ● | Agent Web Access | Live web access for AI agents: fetch JavaScript-rendered pages as clean, LLM-ready markdown/text/html, extract elements by CSS selector, and capture full-page screenshots or PDFs of any public URL. Headless Chromium, SSRF-validated. Pay-per-call in USDC via x402 (exact scheme, Base) — no API key, no signup. | 4 | $0.002 | 100.00% | $9 | 30 | BSE |
| ● | CoinGecko | Crypto price and on-chain DEX data API. x402-gated endpoints for agents — pay-per-call USDC on Base or Solana. | 3 | $0.01 | 100.00% | $4 | 60 | SOL/BSE |
| ◐ | Interzoid | Data-quality APIs — name matching, company standardization, email validation, company intelligence. 50+ endpoints x402-payable. | 3 | $0.01 | 100.00% | $2 | 19 | BSE |
| ● | Gloria AI | Real-time crypto news intelligence — headlines with sentiment, feeds, recaps. Paid per-call in USDC on Base. | 3 | $0.03 | 100.00% | $1 | 6 | BSE |
| ● | Minifetch | Composable URL/metadata/data extraction APIs — URL to markdown, structured data extraction. | 1 | $0.002 | 100.00% | $0.44 | 24 | BSE/SOL |
| ● | Quentrix x402 API | Quentrix — autonomous AI agent (human-supervised by ManageMaker). Sourced research briefs ($0.05/call) and EN/RU/PT translation ($0.02/call), paid per call in USDC over x402 on Base mainnet. | 2 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | OnchainPulse | Pay-per-query intelligence API for onchain finance: pre-trade token safety verdicts on Solana and EVM, RWA and tokenized asset data, crypto regulation summaries, ETF flow figures and a terminology decoder, all returned as structured JSON. | 10 | $0.015 | 100.00% | $269 | 80 | SOL/BSE/ARB/POL |
| ● | Forge Launch Signals + x402 Verifier | Two paid endpoints, USDC on Base (exact scheme, xpay facilitator). GET /launch-signals ($0.03): live pump.fun launch signals - up to 100 newest memecoin launches with normalized screening verdicts (class + reason + measured holder concentration %), current price multiple, 5-min buy/sell flow, unique buyers, volume, liquidity, dev rug-risk history (prior mints/migrations), and smart-money aggregates (counts + net USD flow, no wallet addresses), plus a market_pulse roll-up; every response discloses generated_at/tracker_data_at and an is_stale flag - stale data is disclosed, never fabricated. POST /verify-x402 ($0.015): x402 endpoint verification - pre-flight checks for any x402 API: liveness, latency, 402 handshake, payment-schema validity, payee on-chain activity. Free /health and / self-description. | 2 | $0.015 | 100.00% | $0.01 | 1 | BSE |
| ● | Robtex | DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring. | 4 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | Speecship Research APIs on Sui | Six bounded pay-per-call public-data research APIs for AI agents, with per-service availability, structured JSON contracts, transparent USDC pricing, and no subscription. | 6 | --- | 100.00% | --- | --- | |
| ● | EventEdge Oracle | Machine-readable Polymarket and Kalshi market context for AI agents over x402 on Base. Recurring market context, topic context, and richer decision context. Read-only data and decision support; no trade execution. | 3 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | Groundcheck | Groundcheck is verified enrichment for AI agents. Send a factual claim and it returns a machine verified verdict with a confidence score and cited sources, grounded against live web sources. Identity protocols verify who an agent is; Groundcheck verifies what it says. Single claim grounding is free. Paid endpoints over x402: claim extraction and instrument resolution at 0.005 USDC, document grounding at 0.02, and delivery attestation at 0.05, which returns a signed receipt binding the x402 payment to the delivered content, verifiable offline. v1 and v2 both accepted. No account and no API key. | 4 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | Hyperliquid Intelligence API (FrostyFi) | Full market intelligence for any Hyperliquid market — core crypto perps or HIP-3 equities/commodities/FX. Prices, funding regime (realized + cross-venue predicted), order-book depth & imbalance, aggressor flow, 24h momentum, plus an AI analyst desk note. $0.02 USDC per call via x402 on HyperEVM (eip155:999). | 1 | $0.02 | 100.00% | --- | --- | |
| ● | GISGP x402 Hazard API | Multi-source US property hazard indicator (USGS seismic risk, FEMA 10-year disaster history, NOAA active weather alerts) for a given lon/lat point. Part of GISGP, an ArcGIS Online data-exchange platform. | 1 | $0.20 | 100.00% | $0 | 0 | BSE |
| ● | ApiToll Reddit Scraper | Reddit data API paid per call over x402. Four endpoints at /tmp/claude-1000/-home-mkkksm/3f6c399f-4272-45e5-813e-469c1162ffb0/scratchpad/apply-approves.sh.03 each: subreddit feeds, keyword search sitewide or scoped to a subreddit, comment threads for a post URL, and a user's post and comment history. Returns structured JSON, scraped live via Apify, no Reddit login or API key. | 4 | $0.03 | 100.00% | $0.36 | 6 | BSE/SOL |
| ● | CyclePulse | Pay-per-call API returning the US manufacturing and trade inventory-to-sales ratio, factory new orders for durable goods and core capital goods, and a plain-language cycle phase label. Data from US Census MTIS and Advance M3. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | SocioLogic RNG | Cryptographically secure RNG (CSPRNG with rejection sampling). Random ints, UUIDs, dice, coin flips, weighted samples. | 3 | $0.01 | 100.00% | $9 | 13 | BSE |
| ● | Neynar | Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base. | 3 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | CANTU Actionable Buyer Demand | Finds current actionable buyer demand and procurement opportunities. Returns the buyer, exact requirement, deadline, official source evidence, offer route, transaction readiness, blockers, and next action. | 1 | $0.10 | 100.00% | $0.20 | 1 | BSE |
| ● | LoneStarOracle GeoPulse | Returns a geopolitical risk score from 0 to 10 for a country or region, combining a base risk score with news sentiment over a configurable 1 to 72 hour window, plus signal direction and key risks. | 1 | $0.07 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | Crinkl | Crinkl provides real-time, verified, identity-free commerce signals from U.S. consumers who are rewarded in Bitcoin for purchase participation. Agents can buy privacy-safe aggregate demand insights without raw receipts, wallet histories, or personal data. | 6 | $0.001 | 100.00% | $0 | 0 | SOL/BSE |
| ● | KR Crypto Intelligence | Korean crypto market data for AI agents: Upbit and Bithumb prices, kimchi premium, USD/KRW rate, arbitrage scanning across 189+ tokens, and AI sentiment built from Korean news. Pay per request via x402 on Base, Polygon or Solana. | 10 | $0.001 | 100.00% | $0.79 ·sh | 86 | SOL/POL/BSE |
| ● | DripMetrics AI | Pay-per-call API returning crypto market microstructure and risk metrics as JSON (VPIN, Kyle lambda, Roll spread, CVD, Amihud illiquidity, gamma exposure), paid per request in USDC on Base with no API key. Standard metrics $0.05, market summary $0.25. | 10 | $0.05 | 100.00% | $16 | 18 | BSE |
| ● | GoldRush | x402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet. | 2 | --- | 100.00% | --- | --- | BSP |
| ● | Deepline GTM API | Pay-per-call GTM data API on Base: company and person enrichment, work and personal email lookup, phone and LinkedIn lookup, decision maker identification and ad intelligence. Origin hosted on AgentCash, which exposes Deepline tooling. | 2 | $0.10 | 100.00% | $198 | 54 | BSE |
| ● | Oblique Markets | x402-paid APIs and MCP for AI agents: on-chain analytics, web extraction, x402 endpoint verification, Bazaar market data - USDC per call, no accounts. | 3 | $0.002 | 100.00% | $23 | 66 | BSE/SOL |
| ● | Japan Weather Forecast & Warnings API | Japanese weather forecasts, meteorological warnings/advisories, and weather discussions, sourced live from 気象庁 (Japan Meteorological Agency). x402-enabled for AI agents that plan travel, logistics, events, or alerts around Japanese weather. | 5 | $0.001 | 100.00% | $0 | 0 | POL/SOL/BSE |
| ● | x402watch | Analytics API for the x402 ecosystem. Returns an 8-label classification with confidence for a buyer wallet, plus on-demand wash trading checks for any wallet or seller address. | 2 | $0.005 | 100.00% | $0.80 ·sh | 86 | SOL/BSE |
| ● | UHADEV PDF & Data Inspection API | Pay-per-call inspection APIs for AI agents: PDF page count/title/text preview (5MB), CSV structure inspection, image inspection, and URL probing. Pay in USDT on Arbitrum via x402; no API key, no signup. | 6 | --- | 100.00% | --- | --- | ARB |
| ● | Biotech Catalyst Sentinel | FDA drug-approval catalyst change stream for US-listed biotechs: every state change of every catalyst we track — each PDUFA date as it is set, extended and resolved — with the real outcome (approval or CRL), the SEC filing quote and its EDGAR source. A superset of the upcoming calendar, as a since-cursor delta feed. Date accuracy AND coverage are published free at GET /v1/accuracy — audit before you pay. Flat price per request. | 2 | $0.02 | 100.00% | $1 | 15 | SOL/BSE |
| ● | DAXPT | Solana measurements for agents on XRPL x402. One row per mint: now (price, liquidity, holders, top-10, organic), watched (age, peak liquidity, drawdown), versus_book (percentiles against the full complete set). You apply the filters. No ranking. No API key. | 1 | $2.50 | 100.00% | $0 | 0 | BSE |
| ● | Safety Incidents — OSHA Severe-Injury API | Federal OSHA severe-injury records, single incident lookups, and employer aggregate safety totals. Cleaned and entity-resolved. Pay-per-call USDC on Base; a free count/schema endpoint is available for agent onboarding. | 3 | $0.005 | 100.00% | $0.13 | 11 | BSE |
| ◐ | Agent Exchange | Pay-per-call data gateway for AI agents — 62 x402 endpoints, USDC on Base, no API key or signup, just a wallet. Coverage: pre-trade token security / rug-check (honeypot, buy/sell tax, mintable, holders), DEX price & liquidity, new-token launch feeds, on-chain reads (balance, gas, tx status, plain-English tx decode, token supply, ENS), web search (Hacker News + GitHub + Stack Overflow + Wikipedia in one call), live prediction-market odds, DeFi yields, and macro data. Flagship: AI-visibility / answer-engine checks — does ChatGPT, Claude, Perplexity or Gemini recommend a given brand — plus category leaderboards. Machine-readable: /openapi.json, MCP server at /mcp, A2A agent card. Payable by both x402 v1 (x402-fetch) and v2 clients. | 20 | $0.001 | 100.00% | $4 | 30 | SOL/BSE |
| ● | HTTP Security Headers Check | One HEAD request against a URL, returning its parsed HTTP security headers as JSON: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, plus advisory warnings and any disclosed Server or X-Powered-By. $0.01 per call on Base. Operated by x402 Atlas. | 1 | $0.01 | 100.00% | $0.25 ·sh | 17 | SOL/POL/BSE/ARB |
| ● | Stelar Digital | Live crypto grid-trading telemetry, market-regime classification, sentiment scoring, and price data from a real production trading operation. Built by one human + one AI. | 8 | $0.005 | 100.00% | $4 | 16 | BSE/SOL |
| ● | felipe-agents web evidence | Paid web evidence utilities for AI agents: fetch public URLs into normalized JSON, compare SHA-256 freshness fingerprints, and assemble bounded source-backed research briefs. USDC on Base via x402; no credentials or JavaScript rendering. | 3 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | Zerion | Wallet, DeFi portfolio, and on-chain data API. Pay-per-request x402 on Base and Solana with no API key. | 3 | $0.01 | 100.00% | $5 | 12 | BSE/SOL |
| ● | latamref — Latin American government reference data | Latin American and Caribbean government reference data as clean, cited JSON: central-bank policy rates, VAT, corporate and personal income tax, minimum wages, CPI inflation, statutory interest, official FX fixes (Brazil's PTAX, Colombia's TRM and Mexico's Banxico FIX) and public holidays across 22 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Regional holiday law is modelled from the instrument that creates it (Argentina movable transfers, Colombia Emiliani Monday shifts, Chile Ley 20.983, Ecuador non-recoverable rest days); where a rule could not be established it is refused, not invented. Paid per call in USDC on Base via x402 — no key, no signup. Public holidays are free. Brazil is the free evaluation country. | 2 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | ForgeMesh Utility APIs | Pay-per-call API grid from ForgeMesh Labs, about 415 POST endpoints for small agent tasks: unit and timezone conversion, reference lookups, text and number utilities, chess logic, and read-only Robinhood Chain token registry data. From $0.001 per call in USDC on Base. | 10 | $0.001 | 100.00% | $1 | 17 | BSE |
| ● | Apify Agentic Endpoint (AGI) | Sells a prepaid, spend capped Apify API token paid in USDC on Base, to be used afterwards as a Bearer token against the Apify APIs to run scraping and automation Actors. Minimum amount 1 dollar. | 1 | $1.00 | 100.00% | $232 ·sh | 44 | SOL/BSE |
| ◐ | websearch | Obscura headless browser through a custom Rust API. ~100ms results. $0.01 | 5 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | ConsumerPulse | Returns a US consumer demand signal built from Census retail and food services sales: headline sales with month and year trends, core spending excluding autos and gasoline, e-commerce versus restaurant spending, and a 13 sector year over year breakdown. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | ip402.xyz | Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address. | 1 | $0.01 | 100.00% | $0.14 | 8 | SOL/BSE |
| ● | Insider Radar — Paper-Trading Lab Telemetry | Live telemetry from a paper-trading research lab running 780+ bots across Kalshi, Polymarket, crypto and equities: leaderboard, signals, alerts, calibration, cross-venue divergences, exposure crowding, optimizer status. Every response carries stale/sample honesty flags. $0.01-$0.02 USDC per request on Solana mainnet. Not investment advice. | 7 | $0.01 | 100.00% | $0.70 | 7 | BSE/SOL |
| ● | Northeast Deal Intel | Commercial real estate intelligence API for 9 Northeast US states. 10K+ AI-scored deals, 130K+ closed comps, cap rate benchmarks, 1031 exchange matching, OZ deal feed, and submarket intel. Pay per call in USDC on Base mainnet — no signup required. | 8 | $0.02 | 100.00% | $0.56 | 27 | BSE |
| ● | Genuine Good Grants / Good Grants API | A human-reviewed Grants.gov research and screening API from Genuine Good News, with current-search normalization, sourced detail, transparent fit signals, decision-ready briefs, deterministic preflight checks, and a 30-day agent pass. | 6 | $0.05 | 100.00% | $0.05 | 1 | BSE |
| ● | AGENTUM — APIs Brasil (CNPJ, CEP, Taxas) | 3 APIs brasileiras pagas via x402 (Base mainnet, USDC): verificação de CNPJ (situação cadastral e Simples Nacional), validação de CEP/endereço, e taxas oficiais do Banco Central (Selic, CDI, dólar comercial) — dado público brasileiro agregado, pronto pra um agente de IA consumir numa chamada só. | 3 | $0.01 | 100.00% | $0.50 | 5 | BSE |
| ● | scrape402 | 66 pay-per-call HTTP APIs for AI agents over x402 (USDC on Base, no signup, no API keys): web scraping and JS-rendered page-to-markdown, web search, isolated code sandbox, LLM ask/classify/summarize, crypto and DeFi market data (spot, candles, order books, funding rates, yields, TVL, stablecoins), prediction-market odds, news and sentiment, plus agent utilities (KV memory, verifiable randomness, webhooks, notary, metered upstream gateways). | 40 | $0.002 | 100.00% | $4 | 66 | BSE |
| ● | StableEnrich | Pay-per-request access to third party web search and enrichment APIs, including Exa, Firecrawl, Clado, Google Maps, Whitepages, Reddit and PDL, behind a single endpoint with no auth, paid in USDC on Base or Solana. | 10 | $0.002 | 100.00% | $2.0k | 347 | BSE/SOL |
| ● | DNS & WHOIS Domain Lookup | Pay-per-call DNS and domain lookup API with six endpoints: A, TXT and MX records, WHOIS text, parsed RDAP registration data and DNSSEC status, all returned as structured JSON. Flat $0.005 per call, payable on Base or Solana. | 6 | $0.005 | 100.00% | $0.53 ·sh | 26 | ARB/POL/SOL/BSE |
| ● | Japan Holiday & Business-Day API | Japanese public holidays, holiday lookup, and business-day calculation (skip weekends + national holidays). x402-enabled for AI agents that schedule, bill, or plan around the Japanese calendar. | 6 | $0.001 | 100.00% | $0 | 0 | BSE/SOL/POL |
| ● | LoneStarOracle TokenLaunch | Scans recently launched token pools on Base, Ethereum and Arbitrum, returning pool age, liquidity, FDV and buy/sell activity. Lookback window and minimum liquidity are configurable per request. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | x402-extract-api | Pay-per-call API for AI agents: clean webpage extraction to markdown/text, schema-validated structured JSON extraction, HS/tariff code classification, and trade-compliance document (commercial invoice / packing list) field extraction. Priced per call in USDC via x402 -- no accounts or API keys required. | 4 | $0.002 | 100.00% | $0 | 0 | BSE/POL/ARB/SOL |
| ● | ThirdMade Shelf | 24 pay-per-call probe endpoints for AI agents: web scraping + page metadata, claim verification, content AI (summarize / jsonify / sentiment), safety guards (prompt-injection, PII, hallucination, JSON), and blockchain data (gas, chain stats, ENS, token security, nonces). USDC on Base via x402, $0.001-$0.01 per call, no signup. Free trials: send header X-Free-Trial: thirdmade-free-trial-2026. Machine-readable catalog: https://thirdmade.net/AGENTS.md | 22 | $0.001 | 100.00% | $0.54 | 12 | BSE |
| ● | Fetchgate | Agent-builder digital-goods storefront and web-reader API on Cloudflare Workers. GET /v1/products returns a catalog (x402 reference kits, MCP/x402 registries, prompt-injection test corpus and defenses, an eval harness), GET /v1/buy/:id is a standard x402 402-then-pay flow ending in a signed download URL. Also plain URL-to-markdown/metadata reader endpoints. MCP server at /mcp. | 6 | $7.00 | 100.00% | $0 | 0 | BSE |
| ● | ukintel.uk | Companies House + FCA company verdicts, UK procurement fit-scores from Find a Tender and Contracts Finder, GOV.UK grant eligibility. Built for AI agents, no signup, no API key. | 6 | $0.02 | 100.00% | $7 | 5 | BSE |
| ● | Google Trends SEO Keyword Data | Pay-per-call API over Google Trends data: interest over time for a keyword, interest by region within a country, related topics and queries. Returns JSON, built for keyword research and search demand analysis. | 4 | $0.03 | 100.00% | $67 ·sh | 24 | SOL/ARB/POL/BSE |
| ● | Lemon Toolshed | Hosted file conversions for agents: markdown, HTML, JSON, YAML, CSV. $0.001/call in USDC on Base over x402 (v1+v2 dual-stack, CDP-facilitator settled). No accounts, no keys; charged only for served conversions. Machine surfaces: /openapi.json, /catalog.json, /llms.txt, GET /check with format aliases. | 5 | $0.002 | 100.00% | $0.10 | 7 | BSE/SOL |
| ● | Zinin M2M Hub | 98 pay-per-call data APIs behind x402 on Base. Company registry lookups and enrichment, sanctions and litigation screening, real-estate and job listings across 15 countries, SEC/EDGAR and funding trackers, crypto wallet and token analytics, plus web utilities (URL to markdown, structured extraction, domain and email checks). Every endpoint is a single POST returning JSON, priced 0.01-0.15 USDC. The same catalogue is also exposed as 9 MCP bundles over streamable-http at /mcp/{bundle}. | 12 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | SupplyChainPulse | Paid API returning a global supply chain stress report: dry bulk and container shipping rates, BLS producer price indexes, the NY Fed GSCPI, a 0-10 stress score and a short AI written summary. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | Crypto ETF Sentinel | Curated SEC EDGAR intelligence on US spot crypto ETFs: 103 issuers with regulatory stage, filings feed, comment letters, XBRL financials, POS AM profiles and heuristic pipeline signals with a published accuracy record. Pay per call in USDC on Base or Solana via x402, or subscribe for an API key. | 22 | $0.03 | 100.00% | $14 | 10 | BSE/SOL |
| ● | Locale Format API | Verified, CLDR-versioned locale formatting for 120+ locales: currency amounts, numbers and dates per the official CLDR rules (de-CH apostrophe grouping, en-IN lakh, ja-JP zero decimals, Arabic-Indic digits), raw per-locale rules, and a /verify endpoint that checks YOUR formatted string against the canonical CLDR output before it lands in an invoice or document. Every response carries the CLDR/ICU version for auditability. $0.001 per call, USDC on Base via the Coinbase CDP facilitator. Free locale list. | 5 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | Package Evidence | Deterministic npm registry evidence for coding agents: dependency maps, integrity, provenance, factual metadata flags, and stable digests over x402. | 1 | $0.003 | 100.00% | $0.01 ·sh | 2 | SOL/BSE |
| ● | Premium Rewards data GETs | Six x402 GETs on Base USDC. Spot FX $0.01: one ECB reference conversion (informational only, not for transaction use; same rates free at https://www.ecb.europa.eu; not sold or endorsed by the ECB). One Sense $0.02: first Wiktionary sense (CC BY-SA 4.0 and GFDL). Debt to the Penny $0.01 from U.S. Treasury Fiscal Data; not an official Treasury product. Recent Quake $0.01; credit U.S. Geological Survey; not an official USGS product. One Entity $0.01: one Wikidata item; structured data is CC0; free at https://www.wikidata.org. Ticket $0.01: binds a Base USDC transfer to this shop's price table; does not settle a new payment; not a refund; not proof the SKU body was delivered. Unpaid GET returns HTTP 402. PayTo 0x6cd6B2a3a8926CE9B6F58CB6369C1AF4cB54c1D7. | 6 | $0.001 | 100.00% | $0.07 | 5 | BSE |
| ● | QueryLines | Surplus lines market data, per query. U.S. excess & surplus (E&S) insurance premium and policy-count statistics from state stamping office publications: time series, YoY summaries, and cross-state comparison. $0.10 single-state query, $0.50 compare, USDC on Base via CDP facilitator. Free discovery endpoints (/v1/coverage, /v1/lines), no API keys. Also an MCP server at /mcp. | 3 | $0.10 | 100.00% | $0.10 | 7 | BSE |
| ● | Apple App Store Search, Reviews & App Data | Unofficial Apple App Store data API: search apps by term, fetch app details by product id, and pull user reviews. Returns developer, price, rating, genres, screenshots and version history as JSON. $0.02 per call in USDC on Base. | 3 | $0.02 | 100.00% | $0.68 ·sh | 21 | SOL/BSE/ARB/POL |
| ● | RC Quantum Data Oracle | Signed, verifiable market-data endpoints from RC Quantum. Six paid products over x402 on Base: BTC performance history, hourly BTC intel, a cross-venue perpetual funding surface, a compact funding-regime read, a cross-asset macro event-risk surface, and a BTC DCA accumulation indicator. Every payload is Ed25519-signed and independently verifiable against a published key. Data, not investment advice. | 6 | $0.01 | 100.00% | $2 | 32 | BSE |
| ● | Agent Web Reader (x402) | Pay-per-call MCP server: crypto market signals, clean web-page text extraction, and GitHub repo SEO audits. USDC settlement via x402. Three paid tools at 0.005 USD each. | 3 | $0.002 | 100.00% | $0.06 | 10 | BSE |
| ● | loophole tape | Real-time labelled pump.fun and Robinhood Chain (Pons V2) launch intelligence, paid per request with x402 (USDC on Solana, PayAI facilitator). Mint risk cards with create-slot bundle and insider shares, creator reputation as knowable at launch, per-slot curve truth, rug flags within seconds, market regime; Robinhood Chain launch feed and curve structure cards (holder concentration, same-block cluster share, terminal vs direct flow). Self-describing responses, OpenAPI, llms.txt, .well-known/x402, MCP server with 13 tools. | 4 | $0.01 | 100.00% | $0.13 | 3 | BSE/SOL |
| ◐ | AgentFeed | Real-time crypto and sports trading data for AI agents, paid per call in USDC via x402 on Solana and Base. No API keys, no accounts, no subscriptions. Records every liquidation across ~600 USDT perpetuals on Bybit, OKX and Binance — including Bybit's allLiquidation, the only complete unthrottled public liquidation stream among the major perp venues — and detects cascades in real time. Also serves sharp-money detection on World Cup betting odds, long/short positioning, open interest, funding rates, Pyth prices, and Solana token rug-risk checks. 18 tools over REST and MCP. | 15 | $0.001 | 100.00% | $1 | 14 | BSE/SOL |
| ● | Linked Panda | Read-only x402 API over LinkedIn data: profile and company enrichment, verified work email lookup, post reactions, job posting and ad search. Paid per single request in USDC on Base. | 10 | $0.01 | 100.00% | $122 | 42 | BSE |
| ● | 2s.io | Keyless pay-per-call API for AI agents: 316 endpoints across 95+ groups. Patents & trademarks (USPTO), legal (CourtListener), government & economy (SEC EDGAR, Census, World Bank, Federal Register), finance/markets, science & medicine (arXiv, PubMed, ICD-10, drug data), vehicles & aviation (NHTSA), geo & weather (OpenStreetMap, NWS/NOAA, USGS), business registries (GLEIF LEI), sanctions screening (OFAC), cybersecurity (CVE/KEV/EPSS), and web/data utilities. No signup, no API key: pay per request in USDC on Base or Solana via x402. Machine-readable OpenAPI, llms.txt, JSON-LD, and MCP server card. | 6 | $0.0025 | 100.00% | $10 | 88 | SOL/BSE |
| ● | glim.sh | Pay-per-call API returning live data from Twitter, Reddit, the web, GitHub, Amazon, YouTube and Telegram, plus a chat completions compatible inference endpoint. | 10 | $0.001 | 100.00% | $50 | 102 | BSE/SOL |
| ● | Straits.live premium data | Real-time Strait of Hormuz crisis data for AI agents: full vessel manifest with OFAC sanctions cross-reference, full-resolution transit and index history, one-call situation snapshot, and the complete daily brief. $0.01-$0.02 per request in USDC on Base, no key or account. | 5 | $0.01 | 100.00% | $0.96 | 14 | BSE |
| ● | GDELT News Intelligence API | AI-friendly JSON API for global news intelligence built on GDELT. Provides recent news, sentiment, geographic distribution, translingual coverage, and entity graph endpoints via x402 payments on Base USDC. | 5 | $0.01 | 100.00% | $0 | 0 | BSE |
| ◐ | Agent Utility Shop | Paid x402 APIs and downloadable toolkits for autonomous agents, procurement, engineering data, structured-data QA, clinical research and sourced analysis. | 13 | $0.03 | 100.00% | $0 | 0 | BSE |
| ● | HelpMyAgent | Agent-ready business data, intelligence and procurement APIs, payable per request in USDC via x402. Provides company search, verification, profiles, directors, financials, risk, compliance, certifications, public contracts, funding opportunities, business intelligence and procurement data without API keys or subscriptions. | 15 | $0.002 | 100.00% | $0.008 | 1 | BSE |
| ● | SolMachina | Machine-payable Solana intelligence over x402 v2: heuristic token risk (mint/freeze authority, Token-2022 dangerous extensions, holder concentration), wallet activity profiles, one-call token intel bundle and a pre-trade sweep skill-pack, plus raw mainnet state (priority-fee distribution, tx decoding, Jito tip-floor, epoch, Kamino markets). Verdict-free by doctrine: responses report 'unknown' over guessing and cite the RPC method behind every field. Settlements are written to a SHA-256-chained ledger verifiable client-side (WebCrypto) and the machine-readable surfaces are Ed25519-signed. USDC on Solana mainnet, self-hosted facilitator, no API key. | 10 | $0.001 | 100.00% | $0 | 0 | BSE/SOL |
| ● | ForgeMesh Travel Agent | Pay-per-call travel planning API on Base: transit provider lookups, weather-aware plans, day trip and weekend itinerary briefs, and location disruption signals. Free calls return a skeleton listing the withheld fields; paid calls return the full result. | 6 | $0.01 | 100.00% | $0.15 | 11 | BSE |
| ● | LoneStarOracle WeatherOracle | Paid weather API returning ensemble high temperature forecasts, model spread and threshold exceedance probabilities for US cities, built on Open-Meteo multi-model data for prediction market use. | 1 | $0.02 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | StableSocial | Pay-per-request API for public social media data across TikTok, Instagram, YouTube, X, LinkedIn, Facebook, Reddit and other platforms, priced at $0.06 per call. Aggregates third-party scraping providers (Scrape Creators, Data365, Lightreel) behind one x402 endpoint set. | 10 | $0.06 | 100.00% | $317 | 97 | SOL/BSE |
| ● | zaref | South African reference data for AI agents: 33 verified series (fuel prices, repo and prime rate, CPI, income tax tables, minimum wage, FX rates, bond yields, ZARONIA and more), two live feeds (government tenders, crypto ZAR prices) and 29 calculators, paid per call in USDC on Base via x402. Every value carries its official source URL, effective date and freshness flag. Every parameter is enumerated in the OpenAPI spec; unrecognised values are rejected with a free 400, never silently defaulted. | 36 | $0.005 | 100.00% | $0.30 ·sh | 11 | BSE |
| ● | FundingRates | Perpetual futures funding rates for BTC, ETH, SOL, AVAX, LINK and ARB across OKX, Hyperliquid and dYdX, with a long/short skew signal per asset. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | DeFi Signals API | Paid market-data API for AI agents (x402, USDC on Base): cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) with a ready-to-use arbitrage spread signal, outlier-cleaned DeFi yields from DefiLlama, and a low-cost BTC/ETH/SOL market snapshot with Fear & Greed index. Clean JSON, exact scheme, from $0.002 per request. OpenAPI at /openapi.json. | 3 | $0.002 | 100.00% | $0.11 ·sh | 21 | BSE |
| ◐ | Aviation x402 | Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments. | 3 | $0.00175 | 100.00% | $0 ·sh | 0 | BSE/POL/AVX/ARB |
| ● | X1-BaaS Scraping API | Stealth scraping API for AI agents. Clean Markdown from any URL. x402 crypto payments. MCP-native. | 1 | $0.005 | 100.00% | $0.03 | 1 | BSE/SOL |
| ● | fetcher.sh — Twitter, TikTok, Instagram & Web Data APIs | 111+ web-data endpoints across 11 services (Twitter/X, TikTok, Instagram, YouTube, Reddit, Google Search/Maps/News/Play, App Store, Yelp). $0.001–$0.05/call, paid via x402 or prepaid credits, no account/API key. Full catalog: /llms.txt, skill: /skill.md | 35 | $0.002 | 100.00% | $7 | 24 | SOL/BSE |
| ● | SuVerse Freight Load Position | Returns the current position of a tracked freight load from its load number, including coordinates, timestamp and transit status. Single POST endpoint by SuVerse Labs, priced at $0.01 per call in USDC on Base and Solana. | 1 | $0.02 | 100.00% | $0.79 ·sh | 22 | BSE/SOL |
| ● | RobinX | Measured intelligence for Robinhood Chain (chain 4663): every X caller and deployer graded against real on-chain price since chain genesis. Caller accuracy records, deployer reputation, labeled holder-structure diffs, the social tape, and a full token dossier - inputs for trading agents, not predictions. Per-call x402 (USDC on Base), no API key, no signup. Machine catalog at /.well-known/x402; hosted MCP at /mcp. | 15 | $0.01 | 100.00% | $45 | 23 | BSE |
| ● | TaskFleet | Structured-data and data-access APIs for AI agents: web search (with recency filter) via Serper+Brave failover, JS-rendering scraper to clean Markdown or schema-driven JSON, on-chain Base wallet analysis (balances, holdings, activity tags), schema-validated JSON extraction, bulk translation, and structured code review. Every response is a guaranteed-valid JSON envelope. No account or API key — pay per call in USDC on Base via x402. | 8 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Email Auth Check (SPF/DMARC/DKIM) | Checks a domain's SPF, DMARC, DKIM and MX records and returns the parsed results as JSON, flagging common gaps such as SPF +all, more than 10 SPF DNS lookups, DMARC p=none and missing DKIM selectors. | 1 | $0.01 | 100.00% | $0.23 ·sh | 16 | SOL/POL/BSE/ARB |
| ● | Ni Biashara — Africa FX & services for agents | Structured African-currency FX data (official + parallel/street rates from live P2P order books, hourly history, daily brief) and business services (Swahili localization, flyer design, social content packs, founder consult, landing pages), sold per call to AI agents over x402 v2 (USDC on Base, CDP facilitator). OpenAPI at /openapi.json, MCP server at /mcp, catalog at /catalog. Ni Biashara LLC, Dallas TX. | 11 | $0.01 | 100.00% | $5 | 8 | BSE |
| ◐ | AfriRef - Pan-African government reference data | Verified government reference data for 34 African countries: central-bank policy rates, VAT, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or revenue authority, with effective-from and last-confirmed dates, and flagged when past its expected update cycle. | 3 | $0.001 | 100.00% | $0.09 ·sh | 9 | BSE |
| ● | usaref — North American government reference data | North and Central American government reference data as clean, cited JSON: central-bank policy rates, VAT and sales tax, corporate and personal income tax, minimum wages, CPI inflation, official FX fixes and public holidays across 10 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Includes sub-national public-holiday calendars for 10 US states and all 13 Canadian provinces and territories, each cited to that jurisdiction's own statute rather than inferred from a federal list. Paid per call in USDC on Base via x402 — no key, no signup. Public holidays are free. The United States is the free evaluation country. | 2 | $0.005 | 100.00% | $0 | 0 | BSE |
| ◐ | Clink Forge | Machine-purchasable government and civic data products - CVEs, safety recalls, CPI, Federal Register, US debt, bank profiles, weather alerts, housing, air quality, UK companies - sold per call over x402 (USDC on Base). Every response carries a provenance chain and a verifiable Ed25519 attestation. MCP server at /mcp; manifests at /.well-known/x402.json and /llms.txt. | 26 | $0.001 | 100.00% | $0.12 | 2 | BSE |
| ◐ | Usenami | Pay-per-call API for perpetual futures market data across 30+ CEX and DEX venues: funding rates and cross-venue spreads, orderbook depth and slippage, open interest, basis and carry, and funding arbitrage signals. | 10 | $0.001 | 100.00% | $0.38 | 29 | BSE |
| ● | AgriPulse | Agricultural commodity price data for corn, soybeans, wheat, cotton, coffee, sugar and livestock, with trend series and an AI-generated market summary. Sourced from FRED, priced per query. | 1 | $0.03 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | AgentServices | 50 paid data, market intelligence, and inference APIs for AI agents. Crypto prices, DeFi yields, on-chain analytics, portfolio intelligence, deep research. x402 micropayments via USDC on Base. MCP endpoint with 36 tools. | 6 | $0.01 | 100.00% | $3 | 18 | BSE |
| ● | AgentBIT | 13 pay-per-call x402 tools for AI agents on Base (eip155:8453), USDC via CDP facilitator: live web search & extraction, company research & enrichment, counterparty risk screening, email deliverability, FX rates, LEI/company identity, invoice/IBAN validation, utilities — plus a free aggregated x402 discovery API. Machine-readable catalog at /.well-known/x402 and /openapi.json. | 25 | $0.001 | 100.00% | $3 | 6 | POL/SOL/ARB/BSE |
| ◐ | ReadX | Public X/Twitter data as read-only JSON: profiles, timelines, single tweets and conversations, search, hashtags, lists, followers and following. Paid per single call via x402, $0.01 in USDC on Base or Solana, with no API key or registration. | 10 | $0.01 | 100.00% | $3 | 21 | SOL/BSE |
| ● | OSHA Inspection Search API | Provide an establishment name and optional state, date-range, violation, and limit filters. Receive JSON for up to 20 matching OSHA inspections with violation counts, inspection details, and official record links. | 1 | $0.02 | 100.00% | $7 | 23 | BSE |
| ● | TariffMonkee | Pay-per-call web data APIs for AI agents over the x402 protocol. Rendered-page fetching, structured extraction, search, research bundling, and an A2A (Agent2Agent) protocol endpoint with a multi-turn research orchestrator. No accounts, no API keys. | 11 | $0.001 | 100.00% | $7 | 7 | SOL/BSE |
| ● | 402Signal | 402Signal helps AI agents find paid APIs and check current payment offers against their price, network and request requirements before paying the seller. A qualifying route costs $0.003 USDC; normal misses are free. Routing payments are supported on Base, Solana and Algorand. The seller's charge is separate. | 1 | $0.003 | 100.00% | $2 | 5 | SOL/BSE |
| ◐ | StableTravel | Pay-per-request travel API for flight search, award seat availability, hotels, activities, transfers and flight tracking, built on Amadeus, Seats.aero, SerpAPI and FlightAware. No account or API key required. | 10 | $0.0054 | 100.00% | $124 | 65 | BSE/SOL |
| ● | TensorFeed | Real-time data API for the AI industry: aggregated news, provider status, model pricing and benchmarks, historical series and security feeds. Free no-auth endpoints plus premium x402 endpoints at $0.02 per call in USDC on Base or Solana. | 10 | $0.02 | 100.00% | $0.66 | 12 | SOL/BSE |
| ◐ | Toolcall | Keyless pay-per-call APIs for AI agents: 30 tools across compliance (sanctions/AML, HS codes, company/VAT), safety (chemical, FDA drug/device, product recalls), web (search, reader, screenshot, tech-stack), and data (SEC financials, electronic parts, jobs, local places). Pay per call with USDC on Base via x402. No account, no API key. | 8 | $0.008 | 100.00% | $2 | 28 | BSE |
| ● | Wikipedia Article Summary | Unofficial wrapper over the public Wikimedia REST API. Returns a normalized JSON summary for any Wikipedia title: plain-text and HTML extract, short description, thumbnail, Wikidata id, and CC-BY-SA attribution. | 1 | $0.005 | 100.00% | $0.12 ·sh | 16 | POL/BSE/ARB/SOL |
| ◐ | x402-farm | Pay-per-call data & security tools for AI agents: honeypot / rug-pull token security checks (verdict OK/CAUTION/HIGH_RISK/AVOID, 8 chains), residential-IP web scraping that reaches sites blocking datacenter/cloud IPs (clean markdown), live token & DeFi market data, and global company data (US SEC EDGAR, UK Companies House, FR KYB/SIREN). Each route is a named job at a fixed USDC price. x402 on Base, no account, no API key. | 6 | $0.003 | 100.00% | $0.12 | 2 | SOL/BSE |
| ● | ByKaranteli Crypto Derivatives Data | Pay-per-call crypto derivatives depth: multi-exchange liquidation map levels, Deribit options tape history, and VPIN order-flow toxicity history for BTC, ETH and SOL. Live snapshots stay free and unmetered; paid calls buy depth and history. | 3 | $0.002 | 100.00% | $0.13 | 13 | SOL/BSE |
| ◐ | Animica x402 APIs | 72 pay-per-request x402 APIs for autonomous agents, USDC on Base, no account and no API key. Post-quantum ML-DSA-65 document signing and agent identity certificates (FIPS 204); signed random bytes with entropy-health attestation; bulk chain exports, health and anomaly detection; a full-text index of ~18,000 machine-payable services built from their own 402 challenges; deterministic portfolio risk and look-ahead-safe backtesting; GPU opportunity routing; structured extraction, classification and reranking; GEO audits. Self-hosted facilitator; ANM-native (animica:1) lane at a 25% discount. | 7 | $0.0018 | 100.00% | $3 | 17 | BSE |
| ● | Particle Pro | Podcast intelligence for AI agents: transcripts and semantic search across episodes, guests and appearances, chart rankings, advertising and sponsor analytics, political-bias and brand-suitability analytics, plus companies, people and topics as one knowledge graph. 100+ REST endpoints and an MCP server (mcp.particle.pro) payable per request in USDC on Base via x402 v2 (Coinbase CDP facilitator), $0.01 to $0.04 per call, no API key or signup. Capability manifest at /.well-known/x402, x-payment-info on every payable operation in /openapi.json, Bazaar declarations on every 402. | 7 | $0.01 | 100.00% | $7 | 10 | BSE |
| ● | MOBILITYCHAIN Korea Mobility Supply-Chain Intel | Korean mobility and EV supply-chain intelligence, sold per query. Structured feed tracking Korea's automotive-electronics and robotics supply chain - batteries and battery materials, EV components, robot parts, actuators and reducers, semiconductors, and tier-1 suppliers to Hyundai/Kia - written from Korean primary reporting and DART filings English-language sources do not cover. FREE TIER: depth=index returns slug, date, category, title and facets at any limit with no payment, so you can browse the whole corpus before buying. Paid: brief (+summary +KPIs) $0.025/item, full (+body +sources) $0.125/item, plus a $0.012 base fee that is waived on cursor continuations. Empty results are free. Filter by date, category and keyword; content is Korean and common English terms are auto-mapped to Korean. USDC on Base or Polygon. Machine-readable at /llms.txt, /openapi.json and /.well-known/agent.json. | 1 | $0.137 | 100.00% | $0.56 | 4 | BSE/POL |
| ● | IPIntel.ai x402 Tools | Pay-per-call x402 API package on Base: satellite observation from coordinates using Sentinel/Copernicus imagery, plus DNS, WHOIS, reverse DNS, domain health and availability, IP lookup, email validation and HTTP latency checks. Prices from $0.001 to $0.09 per call. | 10 | $0.001 | 100.00% | $2 ·sh | 30 | BSE |
| ● | OT Intel API | Pay-per-call OT/ICS threat intelligence API. Endpoints cover CVE triage with OT-adjusted severity, internet-exposed device lookup, threat actor and campaign profiles, IOC enrichment, detection artifacts and compliance framework mapping. Responses are LLM-enriched. Priced in USDC on Base. | 10 | $0.01 | 100.00% | $2 | 12 | BSE |
| ● | Deploid Enrich | Work email enrichment for AI agents. Find one work email from a LinkedIn profile or name and company. 0.15 USDC on Base only for a DELIVERABLE result; no match and rejected quality are not charged. Async jobs with free polling. Limited public pilot, not bulk prospecting. FullEnrich-backed; no personal emails or phones. | 1 | $0.15 | 100.00% | $0.15 | 1 | BSE |
| ● | Fetcher | Pay-per-call API tools for AI agents. Render JavaScript pages in a real headless browser, extract clean article content as Markdown, resolve URL redirect chains, and check domain availability with RDAP — paid with x402 micropayments in USDC on Base. Built for autonomous agents and the developers who ship them, and callable from any model that supports tool use, including Claude, ChatGPT, Gemini, Grok, and Perplexity. | 20 | $0.002 | 100.00% | $0.05 | 4 | BSE |
| ● | AgentToll | Base-native onchain data for AI agents, pay-per-call in USDC via x402 v2. Token prices by contract, wallet portfolios valued in USD, token safety checks (honeypot/taxes/owner powers), new-pool radar with a live track record scored against past snapshots, Uniswap v4 pools read seconds after creation, Basename resolution, gas costing, Turkish lira and exchange-spread checks, stateless watch diffs. 21 paid endpoints ($0.001-$0.008), 4 free. Every 402 quote carries the endpoint's request and response schema. Failed requests are never charged. Open source (MIT), MCP server on npm (agenttoll-mcp). | 21 | $0.001 | 100.00% | $0.68 | 25 | BSE |
| ● | Qonoro Intelligence API | Qonoro is an x402-native intelligence API for autonomous agents: structured, source-cited B2B intelligence and data enrichment, callable 24/7 with pay-per-call USDC on Base. Endpoints cover company enrichment, research & discovery, competitor and sales-signal analysis, lead qualification, person enrichment & search, hiring and job-change signals, intent signals, domain/tech intelligence, KYB entity verification, news sentiment, outbound personalization, and real-time validation/normalization utilities (email, phone, URL, address, domain resolution, NAICS). Every response is normalized JSON built for agent-to-agent workflows. All endpoints are live and x402-validated (indexed on Agentic/Bazaar via real settled USDC payments on Base). Per-call pricing starts at $0.005 depending on the endpoint. Additional intelligence agents are actively in development and will ship under the same api.qonoro.ai base. MCP server (PyPI): https://pypi.org/project/qonoro-mcp/ | 21 | $0.005 | 100.00% | $1 | 9 | BSE |
| ◐ | DopamineDesk x402 Marketplace | 78 live pay-per-call data, verification, research, and onchain utility products for autonomous agents and developers. The catalog covers EVM reads, transaction preflight, security checks, market data, public records, commerce intelligence, web research, and deterministic audits. No account or API key is required. Payments use USDC on Base through x402 v2, with machine-readable schemas, bounded previews, provenance, and an MCP adapter. | 83 | $0.001 | 100.00% | $1 | 19 | BSE |
| ◐ | Truth Bear | Verify official facts before your AI agent acts — multi-source cross-validation with tamper-proof receipts on Bitcoin. 180+ signals (USGS/NOAA/SEC/EPA + more). x402 pay-per-call in USDC, no API key. | 50 | $0.005 | 100.00% | $127 | 10 | BSE/SOL |
| ● | Spotify API | Spotify Data API for Millions of songs & podcasts, artists, albums, playlists and more. | 41 | $0.01 | 100.00% | $0.01 | 1 | BSE |
| ● | Places & Local Business Search | Pay-per-call API for local business and place lookups, with separate endpoints backed by Google Maps, Apple Maps and DuckDuckGo Maps data, returning ratings, reviews, address, phone, website and opening hours as JSON. | 6 | $0.02 | 100.00% | $0.68 ·sh | 21 | SOL/POL/BSE/ARB |
| ● | AgentShop | Seven deterministic x402 tools for AI agents: URL to Markdown, DEX token snapshots, URL metadata, weather, fiat FX, Wikipedia lookup, Hacker News search. USDC on Base, GET and POST. | 7 | $0.00001 | 100.00% | $0 | 0 | BSE |
| ● | IPIntel.ai Satellite & GeoRisk API | Paid API returning satellite imagery and location data for coordinates. Four endpoints: Sentinel/Copernicus observations (true color, vegetation, water, thermal, radar), current natural hazard risk, forward geocoding and reverse geocoding. JSON responses, with PNG URLs for imagery. | 4 | $0.002 | 100.00% | $2 ·sh | 30 | BSE |
| ● | Disruptive Concepts | Weekly curated arXiv shortlist with disruptiveness scores and structured JSON for AI agents. Humans read explainers free. Agents pay USDC on Base via x402 for papers ($0.01), articles ($0.02), scores ($0.005), feed ($0.05), and the week bundle ($0.25). Catalog and current week are free. | 5 | $0.01 | 100.00% | $0.03 | 2 | BSE |
| ● | ApiToll Facebook Ad Library | Searches the public Facebook Ad Library by keyword, advertiser or page and returns the full ad creative: headline, body copy, CTA and destination link, media URLs, run dates and platform mix across Facebook, Instagram, Messenger and Threads. Also serves TikTok Top Ads by country. | 4 | $0.03 | 100.00% | $0.39 | 8 | BSE/SOL |
| ● | ComputePulse | Returns GPU spot prices collected from Vast.ai, RunPod, AWS EC2 Spot and Lambda Labs, with the cheapest option per GPU tier (H100, H200, A100, L40S, RTX 4090), a market signal and a short text summary. One paid endpoint at 0.05 USDC per call. | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | CryptoPulse Data API | Pay-per-call crypto market intelligence for AI agents on Base mainnet (x402 v2, USDC). Spot prices, trending coins, Fear & Greed index, gas prices, OHLC candles, DEX pair liquidity/volume, ERC-20 rug-pull/honeypot risk checks, and top DeFi yields — $0.002 to $0.02 per call. | 9 | $0.002 | 100.00% | $0 | 0 | SOL/BSE |
| ● | EconDash | Global macroeconomic data API with 753 indicators across 298 countries. AI agents get pay-per-call access to GDP, inflation, employment, trade, and other World Bank/FRED/OECD indicators. Returns structured JSON with time series, rankings, country profiles, and metadata. Designed for agent-driven economic analysis, dashboards, and automated research. | 15 | $0.02 | 100.00% | $0.58 | 11 | BSE |
| ● | OpenPay | Live on-chain data about JPYC (the Japanese yen stablecoin) and curated Japan Web3 directories for AI agents, paid per request in USDC on Base via standard x402 (exact scheme, facilitator: Coinbase CDP). Endpoints: JPYC supply by chain, wallet balance, recent transfers, 24-hour network activity, weekly change feeds for JPYC services and Japanese stablecoin payment providers, and sourced directories of Japan Web3 services and JPYC-accepting stores. Facts only, no advice; every directory row has an official source URL and last-verified date. | 9 | $0.002 | 100.00% | $0.30 | 9 | BSE |
| ● | Scout Multi-Source Intelligence API | Search API for agents that queries 18 sources in parallel (Hacker News, GitHub, npm, PyPI, arXiv, Stack Overflow, X/Twitter, Product Hunt and others) and returns structured JSON, plus aggregated multi-source research reports. Paid per call in USDC on Base or Solana, from $0.01. | 10 | $0.01 | 100.00% | $1 ·sh | 362 | BSE/SOL |
| ● | Japan Transit API | Real-time train delays + delay-aware alternative routes for Japan rail. x402-enabled for AI agents. | 7 | $0.001 | 100.00% | $0.09 ·sh | 19 | SOL/BSE/POL |
| ● | SniperX•x402 | SmartTrader (KOL/SmartMoney/Whale) activity and analytics on Alpha and Newpair. High-quality server for next-generation autonomous agents, data products, and prediction markets. | 22 | $0.001 | 100.00% | $444 | 13 | SOL |
| ● | fetchx402 | Pay-per-request network utilities for agents via x402 V2 (USDC on Base). Live DNS, WHOIS/RDAP, SSL/TLS, HTTP headers, redirect tracing, plus host-intel and uptime bundles. No API keys. Not @x402/fetch. Catalog: https://api.fetchx402.com/v1/catalog Docs: https://api.fetchx402.com/docs Probe example: GET /v1/tools/dns?domain=example.com | 7 | $0.005 | 100.00% | $24 | 7 | BSE |
| ● | difftool | Structural diff + patch API for agents: text and JSON diffs, RFC-6902 JSON Patch generation and application. Deterministic output suitable for automated pipelines. 0.03 USDC per call via x402 on Base. | 1 | $0.03 | 100.00% | $0.0016666667 ·sh | 1 | BSE |
| ● | Verdoc | Deterministic GitHub repository analysis for coding agents. Returns an AGENTS.md with build and test commands quoted from the repository's own manifests, each tagged with the file it came from, plus a directory map and entry points. No language model is used: every path is checked against the git tree and ambiguous areas are marked unverified rather than guessed, so the same commit always returns the same answer. Pay per call in USDC on Base, Polygon or Arbitrum - no account and no API key. | 2 | --- | 100.00% | $0 | 0 | BSP |
| ● | Moneytest 402 Radar | Verified public HTTP 402 and x402 surface catalog with freshness, deterministic digest, public-safe evidence, and Base USDC reward receipts for autonomous agents. | 1 | $0.10 | 100.00% | $0 | 0 | BSE |
| ● | LeaseEdge | Paid API with a single /report endpoint returning Gulf of Mexico federal offshore oil and gas lease reports built from public BOEM data, filterable by area code, lease status or lease number. $0.15 USDC per query on Base or Solana. | 1 | $0.15 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | Japan Address API | Normalize, geocode, and parse Japanese addresses. x402-enabled for AI agents. | 6 | $0.001 | 100.00% | $0.09 ·sh | 19 | BSE/POL/SOL |
| ● | Strale | Business data and compliance APIs for AI agents. 250+ independently quality-tested capabilities: company registry lookups across 20+ countries, KYB and sanctions/PEP screening, VAT/IBAN/LEI validation, document extraction. Pay per call in USDC on Base via x402, no signup and no API key. Every call returns an audit record with cryptographic chain hashing. | 10 | $0.0216 | 100.00% | $265 | 31 | BSE |
| ● | DataForAgents | Pay-per-request JSON datasets for autonomous agents via x402 (USDC on Base). Steam catalog search/insights, FIFA World Cup 2026 player data, and news Alpha/Shift pulses. No API keys — unpaid calls return HTTP 402. | 6 | $0.01 | 100.00% | $0.27 | 8 | BSE |
| ● | LaborPulse | US labor-market signal (jobs, unemployment, wages, JOLTS) | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | asiaref | Verified government reference data for 28 Asian countries: central-bank policy rates, VAT/GST, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or revenue authority, with effective-from and last-confirmed dates. | 3 | $0.005 | 100.00% | $0.09 ·sh | 9 | BSE |
| ● | gitBeacon | GitHub trend intelligence for AI agents. A daily scan of trending new GitHub repos, LLM-analyzed into a structured digest (categories, language trends, emerging tools, notable projects, sentiment), plus the raw trending-repo rows behind it. Paid endpoints settle per call via x402 micropayments (USDC on Base) — no account, no API key. | 2 | $0.01 | 100.00% | $1 ·sh | 24 | BSE |
| ● | OrcaTrace | Polymarket intelligence on x402. Real-time prediction-market signals across 42K markets: quality-gated repricings with order-book microstructure, tracked-whale entries annotated with each wallet's hold-to-resolution calibration (follow/fade), and AI-detected predetermined-outcome markets — one unified, index-polled feed. The whale track record is verifiable and free. Paid endpoints settle per call via x402 (USDC on Base) — no account, no API key. | 6 | $0.01 | 100.00% | $1 ·sh | 24 | BSE |
| ● | GDELT News Search and Timeline | Pay-per-call wrapper over The GDELT Project's public news API: full-text search across global media (/search, $0.005) and a merged coverage-volume plus average-tone time series for any query (/timeline, $0.02), returned as normalized JSON. | 2 | $0.005 | 100.00% | $0.15 ·sh | 13 | SOL/ARB/BSE/POL |
| ● | MIDAX402 | MIDAX402 is an AI market-intelligence service for autonomous agents. Each paid request returns a structured market analysis with an explicit verdict and confidence score, generated by a dual-LLM engine that reports its synthesis status honestly. Four tiers from $0.03 to $0.15 USDC per call, payable natively over x402 on Base. | 4 | $0.03 | 100.00% | $0 | 0 | BSE/SOL |
| ● | ProfitCollector Utility Node | Deterministic utility APIs paid per request with x402 on Base. | 1 | $0.005 | 100.00% | $2 | 7 | BSE |
| ● | Business Day & Deadline API | Verified, always-current business-day arithmetic for ~200 countries incl. subdivisions (German Bundeslaender, US states) and correct per-country weekend rules (e.g. Fri/Sat in Egypt). Check business days, add/subtract business days (deadline calculation), count days between dates. $0.001 per query (exact, USDC on Base). OpenAPI at /openapi.json, free introspection at /v1/schema. | 5 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | Global Intelligence Exchange | Real-time intelligence lookups for autonomous agents, paid per query via x402/USDC on Base. Three vectors: US Sanctions List Screening (checks both the Trade.gov Consolidated Screening List and the UN Security Council Consolidated Sanctions List concurrently, so a query is still answered from a real registry if one source is temporarily unavailable), CVE/Vulnerability Lookup (live NIST NVD data), and Company Registry Check (live SEC EDGAR + UK Companies House, checked in parallel). Every response includes a dataSource field (LIVE_VERIFIED or AI_ESTIMATE_UNVERIFIED) so consuming agents always know exactly what was actually checked, never a silent guess presented as fact. Payments are idempotent by nonce — a retried request after a timeout returns the original result rather than charging twice. | 3 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | Marketplace for AI Agents | x402-payable multi-engine search API marketplace for AI agents. 40 endpoints including YouTube transcripts, Google/Bing/DuckDuckGo/Yandex search, shopping, maps, flights, hotels, Amazon, and Apple App Store. $0.005 USDC per call on Base with 3 free calls per identity. Docs at /llms.txt. | 6 | $0.005 | 100.00% | $0.26 | 2 | BSE |
| ● | RegimeShift Clearinghouse | Pay-per-call market data API on Base. Returns BTC and ETH volatility risk premium (Deribit DVOL minus Parkinson realized vol, 72h) and Agent-SOFR, an operator-computed USD short-rate benchmark, with raw inputs and a LOW/MID/HIGH regime label. | 2 | $0.001 | 100.00% | $0.17 | 28 | BSE |
| ● | Apify Actors API | Run Apify Actors (scrapers, crawlers and web automation tools) paying per call in USDC on Base via x402, with no account or API key. The 402 challenge declares a cap of 1 USDC per run and the JSON schema of the required input. | 5 | $1.00 | 100.00% | $231 ·sh | 43 | BSE |
| ● | WebberSites x402 Data API | Pay-per-call data & utility API for AI agents — 40+ endpoints, USDC on Base via x402, from $0.001. Web scraping & summaries, PDF/DOCX/CSV extraction, crypto prices & market reports, IP geolocation & timezone, DNS & email checks, SEO / accessibility / schema.org audits (page & whole-site), music metadata & cover art, icon / logo / brand-kit / OG-card generation, image vectorization, multi-page website builds, a wallet-keyed agent datastore, and a machine message board. No accounts, no API keys. | 37 | $0.001 | 100.00% | $1 | 35 | BSE |
| ◐ | Invoket | The checks AI agents run before they act: verify IBANs and screen sanctions before paying, phone lines before messaging, FR/EU laws in force before advising, weather before deciding, VINs and recalls before buying. Official sources (EPC, OFAC/EU/UN, LEGI/EUR-Lex, ERA5/GFS, NHTSA vPIC), provenance in every response. You only pay for answers. | 68 | $0.01 | 100.00% | $0.53 | 9 | BSE/SOL |
| ● | witness | Independent fact + signed receipt via x402. Free POST /quote then pay POST /witness twice for the same method ($0.02 ceiling). Base and Solana USDC. | 1 | $0.01 | 100.00% | $3 | 2 | SOL/BSE |
| ● | WhaleTape | Hyperliquid smart-money intelligence, pay-per-request over x402 in USDC on Base AND Algorand. Whale positioning and entries/exits, open-interest and funding signals, notional flow with stealth accumulation, a squeeze radar scored 0-100, and AI market briefs. 24 endpoints from $0.001 to $0.99, no account and no API key. The Base 402 quotes both networks; the same catalog is also served under /algo/* priced in Algorand USDC (ASA 31566704, settled by the GoPlausible facilitator, fees sponsored). Free tier: aggregate stats and a market sample. | 49 | $0.001 | 100.00% | $36 | 12 | BSE/ARB/SOL |
| ● | Grokzilla x402 Micro Pay | Humanless agent microservices marketplace. Native skills plus first-party JSON flatten, text diff, and URL normalize. Pay-per-call USDC on Base via x402. | 4 | $0.005 | 100.00% | $0 | 0 | BSE |
| ◐ | x402node | Pay-per-call API with more than 500 endpoints on a single host: exchange rates, crypto and stock prices, on-chain and DeFi data, commodities, text and web utilities. x402 payment in USDC on Base and Solana, full catalog at /openapi.json. | 10 | $0.004 | 100.00% | $37 ·sh | 90 | BSE/SOL |
| ● | Citable | SEO and AI-visibility data agents buy per call. 17 GET endpoints: keyword research and metrics, on-page audits, AI-citation checks across ChatGPT, Claude, Gemini and Perplexity, rank and SERP checks, domain overview/keywords/history, and backlinks. $0.005-$0.30 per call in USDC on Solana mainnet via x402 v2 (exact scheme, PayAI facilitator). No account and no API key - the wallet is the identity. Any 4xx/5xx cancels the payment instead of settling it, so a failed call is never charged. | 17 | $0.005 | 100.00% | $0 | 0 | SOL |
| ● | AgentWork Web Evidence | Webpage text extraction, digital PDF text extraction, and caller-managed website change detection for research and monitoring agents. Synchronous JSON with source URLs, timestamps and SHA-256 hashes. $0.005 USDC per web call on Base ($0.01 Algorand); $0.01 for PDF. No account or API key. HTML/text only, no JavaScript rendering. | 3 | $0.005 | 100.00% | $0.53 | 6 | BSE |
| ● | x402scan | Paid x402 API from x402scan returning its ecosystem datasets: merchants, resources, buyers, facilitators and origin registry, priced per call in USDC on Base. | 8 | $0.01 | 100.00% | $18 | 62 | BSE |
| ● | x402 DEX data, agent utilities & Uniswap v4 hook risk API | Pay-per-call (x402/USDC on Base) market-data, geocoding, randomness and hook-risk endpoints. Free demo route included. | 50 | $0.01 | 100.00% | $2 | 23 | BSE |
| ● | ForgeMesh Disruption Intelligence | Pay-per-call API over US WARN Act layoff filings on Base: company search and profiles, event severity, amendment history and relationships, state and county rollups, plus briefs on downstream sector impact. Endpoints priced $0.01 to $0.25, no signup. | 10 | $0.01 | 100.00% | $0.58 | 9 | BSE |
| ● | SuVerse Pay | Pay-per-call x402 API by SuVerse Labs with around 500 data endpoints (crypto prices, DeFi TVL, FX rates, weather, IP geolocation, prediction markets) wrapping public sources. Settles in USDC on Base, Solana and Noble, typically $0.05 to $0.10 per call. | 10 | $0.001 | 100.00% | $2 ·sh | 26 | BSE/SOL |
| ● | DwellData — Multifamily Real Estate Deals Feed | Deal-level US multifamily real-estate data for AI agents, pay-per-call in USDC on Base (x402 v2, Coinbase CDP facilitator). Typed underwriting on every record (NOI, DSCR, HUD-SAFMR-underwritten cap rate), Hot/Warm/Pass scoring with machine-readable rationales, county tax-delinquency distress signals, sheriff-sale auction calendar, scored off-market seller leads, and a per-address lookup. Every absent value carries a typed reason, and a query that matches nothing returns free — you never pay for a blank. | 8 | $0.01 | 100.00% | $0.29 | 11 | BSE |
| ● | NewsMesh | Real-time news API for AI agents. Search and filter articles from thousands of global sources. | 4 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Circadian | Pay-per-call web data APIs run by a disclosed autonomous AI agent business. extract turns any public URL into clean Markdown plus metadata for $0.01; meta returns OpenGraph, JSON-LD, feeds and canonical data as one JSON for $0.005; brief orders an async researched technical brief of 500 to 800 words with citations for $3.00, delivered within 36 hours, with a free job status endpoint to poll while it is being written. Note that brief is asynchronous by design: payment returns a job id and a status URL, not the finished brief. USDC on Base, PayAI facilitator, both v1 and v2 flows, SSRF guarded, no account needed. The same operation publishes open datasets measuring the x402 market and the MCP registry, CC BY 4.0 with MIT scanners, so the figures are reproducible. | 3 | $0.005 | 100.00% | $0.01 | 2 | BSE |
| ◐ | Kael Ecosystem Pulse | Paid 24h Solana ecosystem digest via x402 Exact SVM USDC (PayAI). Lane-tagged narratives plus headlines ($0.02), delta ($0.08), evidence ($0.05); free sample. Informational synthesis only — not financial advice or trading signals. | 9 | $0.01 | 100.00% | $0 | 0 | SOL |
| ● | Mycelia Signal | Signed cryptographic price oracle. Ed25519-signed canonical price/econ attestations for agent consumption. 38 price pairs + 19 econ indicators. | 2 | $0.01 | 100.00% | $27 | 33 | BSE |
| ● | AgentData API | Real-time crypto market data for AI agents: prices, perp funding rates and predictions, volatility, liquidation levels, correlation, on-chain vs CEX spreads, technical indicators, sentiment, plus differentiated institutional signals (trader positioning, spot ETF flows, macro/on-chain context, supply). NEW: /api/market-pulse bundles the eight most-polled signals into one call for $0.018 — 18% cheaper than the $0.022 the parts cost, and one settlement instead of eight, which matters when the facilitator pays the gas. Pay-per-request in USDC on Base via x402 - no account, no API key. Self-hosted facilitator. MCP endpoint and A2A agent card included. | 22 | $0.002 | 100.00% | $0.48 | 4 | BSE |
| ● | API Acre | Official-source public data from SEC, GLEIF, OFAC, USAspending, the Federal Register, NHTSA, the World Bank, NOAA/NWS, MET Norway, GeoNames, and the U.S. Census, plus retailer product-price evidence, timezone conversion, global place and reverse geocoding, web and domain intelligence, deterministic document and data transforms, developer analysis, and read-only Base utilities. All paid endpoints use POST. Exact USDC on Base via x402 and CDP, with JSON schemas, free samples, browser checkout, MCP, and A2A discovery. | 74 | $0.001 | 100.00% | $33 | 26 | BSE/SOL |
| ● | GridPulse | US electricity grid data for 7 regions: demand, generation mix by source (renewable, gas, nuclear) and grid stress signals, sourced from EIA-930. | 1 | $0.03 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | IPIntel.ai IP Lookup & Risk API | Pay-per-call IP intelligence API. Send an IPv4 or IPv6 address and get JSON with a risk score and label, ASN, ISP, organization, geolocation, reverse DNS, hosting/proxy/Tor flags, verified bot detection and a short threat summary. Priced at $0.001 per call in USDC on Base. | 1 | $0.001 | 100.00% | $2 ·sh | 30 | BSE |
| ● | twit.sh | Paid API for X/Twitter data: tweet search, user profiles, followers, lists and communities returned as X v2 compatible JSON, plus write endpoints such as posting and interactions. Paid per single request in USDC on Base via x402. | 10 | $0.0025 | 100.00% | $65 | 77 | BSE |
| ◐ | SYNTHORA | On-chain and real-world data intelligence for autonomous agents: 57 x402-native endpoints (wallet enrichment, sanctions/AML screening, DeFi/market data, LLM inference, stock intel, email/DNS/security tooling). USDC on Base mainnet, Ed25519-signed responses. Canonical machine-readable catalogue: https://api.hergertsynthora.com/.well-known/x402.json | 49 | $0.005 | 100.00% | $4 | 39 | BSE |
| ● | StableEstate | Pay-per-request US real estate data API: rental and for sale listings, property records with attributes, taxes and owner, value and rent estimates, market statistics by postal code. MLS data supplied upstream by RentCast. | 10 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | IndustrialMetals | Industrial metals prices with momentum signals, category analysis, and AI brief | 1 | $0.05 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | PayAPI Market UK Property Data API | Pay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base. | 2 | $0.001 | 100.00% | $0.17 ·sh | 54 | BSE |
| ● | GovEdge | Paid API for US federal contracting data: USASpending award records cross-referenced with vendor stock tickers, plus live SAM.gov solicitations. Filterable by agency, NAICS code, ticker, award size and lookback window. | 1 | $0.20 | 100.00% | $0.98 ·sh | 34 | SOL/BSE |
| ● | Concordance | Aggregates 18 free and keyed data sources (SEC EDGAR, FRED, GDELT, arXiv, court opinions, market data, Wikipedia, and more) into 6 x402-priced tools: full-text search, economic/financial time series, cross-category digest, cross-source company briefs, source corroboration scoring, and chronological timelines. | 6 | $0.01 | 100.00% | $0 | 0 | SOL/BSE |
| ● | cn402 | Pay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups. Priced from $0.002 to $0.16 in USDC on Base and Solana. | 10 | $0.0022 | 100.00% | $37 ·sh | 90 | SOL/BSE |
| ◐ | DeFi Signal API | Real-time DeFi intelligence from live 24/7 bot infrastructure. Morpho Blue borrower positions, Aave near-liquidation data, PoolTogether draw timing. Pay-per-call in USDC on Base via x402. | 8 | $0.002 | 100.00% | $0.06 | 9 | BSE |
| ● | Weather | Weather + nature intelligence: current conditions, 7-day forecasts, earthquakes, volcanoes, air quality, solar activity, and marine data. Multi-source (ECMWF, NOAA GFS, USGS, NASA) with premium AI reasoning endpoint for natural-language weather questions. | 9 | $0.00175 | 100.00% | $0 ·sh | 0 | ARB/POL/BSE/AVX |
| ◐ | Sirenic | French & European company data for AI agents, pay-per-call in USDC or EURC via x402 — company lookup & KYB files, officers, annual accounts & financials, share capital, default-risk scoring, AML sanctions screening, INPI/INSEE documents, e-invoicing supplier checks (France 2026 mandate, Belgium, Poland); official company registries across 12 European countries (Belgium, Switzerland, UK, Norway, Sweden, Czechia, Slovakia, Finland, Poland, Estonia, Latvia, Spanish BORME acts) + worldwide LEI/GLEIF. Ed25519-signed responses, no API key. | 72 | $0.002 | 100.00% | $54 | 20 | BSE |
| ● | AgentPay | Budget-capped x402 tools for AI agents: session_create enforces a hard spend cap with receipts; verified_route vets x402 providers by real usage; pre_trade_check is a one-call pre-trade safety verdict. 17 free crypto/market-data tools alongside. USDC on Base (standard x402) and Stellar via SDK. | 3 | $0.01 | 100.00% | $0.50 | 14 | BSE |
| ● | Wines.bet Wine Market Data API | Commercial wine market data API for AI agents. Provides current wine prices, historical price trends, investment analytics, winery and producer discovery, Italian wine regions, DOC/DOCG denominations, sommelier intelligence, tasting profiles and food pairing. Paid per request via x402 V2 using USDC on Base. | 6 | $0.002 | 100.00% | $0.07 | 1 | BSE |
| ● | Signalis | Global intelligence for AI agents on x402: a 4-hourly Master Intelligence digest cross-synthesized from a 20-source roster — each digest reports the exact subset it used in its sourcesUsed field — plus Pulse, AI-business narrative intelligence (lifecycle-staged narratives, per-narrative detail, historical digests, raw content). Current digest is free to poll; history and Pulse settle per call in USDC on Base. Signalis is the dedicated home of this surface after the 2026-07 Moltalyzer product split; Moltalyzer's legacy /api/intelligence and /api/pulse routes permanently 308-redirect here. | 4 | $0.01 | 100.00% | $1 ·sh | 24 | BSE |
| ● | BountySignal | Read-only evidence pre-check for public bounty URLs with explicit x402 pricing on Base. | 4 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | Kronos Crypto Data & Forecasts | Pay-per-call real-time crypto market-data API for autonomous agents and trading bots. Covers 16 assets with derivatives intelligence (funding rates, open interest, basis), liquidation cluster maps, options implied volatility, multi-source spot pricing, macro context, and ML price forecasts. No API keys required — x402 USDC micropayments on Base mainnet. Prices range $0.001-$0.10 per call. | 4 | $0.02 | 100.00% | $69 | 73 | BSE |
| ● | CrownBlock | US oil and gas market data: WTI, Brent and Henry Hub prices, refined products, US rig count, crude inventory versus the five year average, and production by basin, returned as JSON with a written market brief. Sourced from EIA and Baker Hughes, refreshed every six hours. | 1 | $1.00 | 100.00% | $0.98 ·sh | 34 | BSE/SOL |
| ● | Toolrail | Pay-per-call utility API for AI agents: PDF generation (invoice/report/contract from JSON or raw HTML), public holidays & business-day math for 187 countries, EU VAT rates for 44 countries + official VIES validation, ECB FX rates since 1999, IBAN/phone/tax-ID validation (Latin America + Spain), QR codes, and LATAM operational data no one else serves: inflation-indexed units (UF Chile, UVA Argentina, UVR Colombia, UDI Mexico) and Argentine dollar quotes. $0.002-$0.01 USDC per call on Base and Solana mainnet via the Coinbase CDP facilitator. No API keys, no signup. | 21 | $0.002 | 100.00% | $0.06 | 7 | SOL/BSE |
| ● | x402dir Facilitator Recommend | Recommend the best x402 payment facilitator by chain, token, and monthly volume. Returns ranked facilitators with fee estimates as JSON. Paid via x402 at $0.001 USDC per query on Base. | 1 | $0.001 | 100.00% | $0.02 | 4 | BSE |
| ● | Find or Verify | Email finder and verifier API, paywalled per-call with x402 (USDC on Solana). | 3 | $0.03 | 100.00% | $0 | 0 | SOL |
| ● | Curl HTTP Request | Send an HTTP request to any URL from our servers and receive the full response — including the status code, all response headers, and the body content. Supports GET, POST, PUT, PATCH, DELETE, and HEAD. Automatically follows up to 3 redirects. Useful for testing endpoints, verifying servers are responding correctly, debugging redirect chains, or fetching raw data without needing a local setup | 1 | $0.01 | 100.00% | $6 ·sh | 28 | BSE/SOL |
| ● | Saylor Innovations — Watchdog Token Intelligence | Live Solana on-chain token intelligence over x402: price/liquidity spread, wallet risk flags, holder concentration, mint/freeze authority, LP-lock %, narrative classification and fresh-pool scanning, from $0.001/request. Plus 26 machine-payable technical/agent guides from $0.01. USDC/USDT/native SOL on Solana (self-verified, no facilitator needed) or USDC on Base via facilitator. Free samples at /api/sample/{kind} before paying, full OpenAPI + AGENTS.md + llms.txt. | 4 | $0.001 | 100.00% | $0 | 0 | SOL/ARB/BSE/POL |
| ● | Nansen | On-chain analytics — wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana. | 3 | $0.01 | 100.00% | $93 | 96 | BSE/SOL |
| ● | Hugen Weather API | Pay-per-call weather API: given a city name or coordinates it returns current conditions and daily forecasts up to 7 days as structured JSON, with x402 payment in USDC on Base or Solana. | 2 | $0.01 | 100.00% | $1 ·sh | 362 | BSE/SOL |
| ● | Recall Kitchen | Recall Kitchen is an MCP server and API giving AI agents real-time access to food and product recall data. Search recalls by keyword, look them up by UPC barcode, or identify a product from a photo. Tools: search_product_recalls, search_product_recalls_by_upc, search_product_recalls_from_image. Free API keys available, or pay per call with x402 at $0.025 USDC/call on Base. | 1 | $0.025 | 100.00% | $0.20 | 2 | BSE |
| ● | Web Search & Data API — SERP, page reader & scrapers | Pay-per-call web search and web data for AI agents. Multi-engine SERP (web + news, batch, rank-fused), search-and-read (top hits to markdown in one call), URL-to-markdown scraping, Google Trends (interest over time, related queries/topics, by region), structured data (WHOIS/DNS, enrichment, SEC filings, crypto/DeFi, geocoding, weather) and academic search (papers, references, cited-by, lit-review). 43 endpoints, USDC on Base, no key, no signup. | 43 | $0.005 | 100.00% | $141 | 56 | BSE |
| ● | Vibe Springs | Pay-per-call data API serving many endpoints on one host: weather and forecasts, earthquakes, flood and marine conditions, fiat exchange rates and conversion, on-chain address risk, plus alert and invoice workflows. No accounts or API keys, USDC micropayments on Base. | 10 | $0.002 | 100.00% | $3 | 80 | BSE |
| ● | Romny Crypto Alerts | Machine-payable crypto USDT-M perpetual alert data: recent hits, factor library, and rule catalog. 0.10 USDC per request on Base via standard x402. Separate from Romny Polymarket Data (api.romny.dpdns.org). | 3 | $0.10 | 100.00% | $1 | 2 | BSE |
| ● | url2md | JavaScript-rendered pages and upstream x402 toll pass-through: url2md drives a headless browser when a page needs one, and when the page itself charges an x402 toll it quotes toll + 25%, settles your payment first, then pays the origin from its own wallet (cap $0.05 per toll). Returns clean Markdown for static HTML, browser-rendered pages and PDFs through one conversion engine. robots.txt honoured per RFC 9309. $0.005 per call in USDC on Base, no account and no API key. | 1 | $0.005 | 100.00% | $2 | 5 | BSE |
| ● | Agent Utility Network | 23 deterministic machine-to-machine utilities for AI agents over x402 V2 on Base USDC, including JSON repair, data normalization, DNS/HTTP inspection, webpage extraction, validation, and composite agent workflows. | 24 | $0.0005 | 100.00% | $0.04 | 3 | BSE |
| ● | RelayShield | Threat intelligence and identity-risk API: breach exposure, infostealer log detection, SIM-swap and session-hijack checks, ransomware victim lookup, and AI-agent-specific security checks (malicious MCP server detection, prompt-injection breach detection). 24 endpoints, all indexed in the Coinbase CDP Bazaar. | 10 | $0.10 | 100.00% | $2 | 4 | SOL/BSE |
| ● | Fly Labs Agentic Market | Pay-per-call data APIs for AI agents. YouTube transcripts and engagement data settled in USDC on Base via x402. Versioned JSON schemas, no signup, no keys. Coinbase CDP facilitator. | 2 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | AARN Web Content Extraction | Extract clean, LLM-ready Markdown or plain text from up to 5 public webpage URLs. Removes page boilerplate and returns structured per-URL results for AI agents, RAG ingestion, research and summarization. Pay-per-call via x402 on Base using USDC. | 1 | $0.005 | 100.00% | $0.03 | 5 | BSE |
| ● | zFinia Machine Economy Intelligence | Machine-economy intelligence for autonomous agents. Retrieve material changes since an agent last checked, with provenance and machine-readable output. x402 v2 exact payments on Base USDC. | 1 | $0.01 | 98.53% | $0.34 | 8 | BSE |
| ● | Japan Diet API | Japanese Diet members and full-text minutes search over the official National Diet Library archive. x402-enabled for AI agents. | 4 | $0.004 | 98.53% | $0 | 0 | SOL/BSE/POL |
| ● | AxonGate | AxonGate is an x402-paid Clean Context Broker on Base. It converts public web pages into clean Markdown for RAG, autonomous research, and LLM context preparation. | 1 | $0.03 | 98.53% | $0 | 0 | BSE |
| ● | Wall Street Wiki Canon | Finance reference lookup across nine .wiki sites plus 30 deterministic formulas - options pricing and Greeks, bond risk, performance ratios, VaR, IRR, fund multiples, deal math and the NYSE trading calendar - each computed with a verifiable sha256 receipt. MCP and REST. Free tier needs no key. | 1 | $0.25 | 98.53% | $0 | 0 | BSE |
| ● | Azimuth | Radio-frequency positioning DePIN for AI agents: pay-per-call location APIs (estimate a position from cellular observations) plus receiver-node registration and status. USDC on Solana and Base, x402 v2, with machine-readable discovery at /.well-known/x402 and a catalog at /api/x402/catalog. | 2 | $0.001 | 98.53% | $0 | 0 | SOL/BSE |
| ● | RWA Risk | Risk profile for tokenized real world asset vaults on Base, covering admin and freeze controls, contract upgradeability, and secondary market exit liquidity across 14 vaults. | 1 | $0.10 | 98.53% | $0.98 ·sh | 34 | BSE/SOL |
| ● | agentstools | 359 pay-per-call HTTP tools for AI agents on one host: web search and page extraction, cited answers, crypto and DeFi market data, on-chain analysis and contract risk, security and breach checks, US government and regulatory records, and enrichment. No account and no API key - an unpaid request returns an HTTP 402 quote, pay with an X-PAYMENT header and the call is served. USDC on Base; the same catalog is also served over Solana on payai.agentstools.dev. | 20 | $0.002 | 98.53% | $5 | 83 | BSE |
| ◐ | euroref — European government reference data | European government reference data as clean, cited JSON: ECB and Bank of England policy rates, VAT with reduced and zero bands, corporate and personal income tax, minimum wages, CPI inflation, statutory late-payment interest, official central-bank FX fixes and public holidays across 35 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Also served: sub-national holiday calendars for Germany's 16 Länder and the four UK nations, point-in-time reads via ?as_at=YYYY-MM-DD, and settlement-date conventions including the enacted EU T+1 transition from 11 October 2027. Paid per call in USDC on Base via x402 — no key, no signup. Public holidays are free. | 2 | $0.005 | 98.53% | $0 | 0 | BSE |
| ● | Hirescrape | Pay-per-call scraping API for LinkedIn, Instagram, TikTok and TikTok Shop profiles and content, plus job posting search across multiple job boards. Price per record is declared in the 402 response, paid in USDC on Base. | 5 | $0.00225 | 98.53% | $6 | 17 | BSE |
| ● | BNM Data Shop | Official public-data x402 shop: 36 paid GETs. US hay, cattle, and grain ticks (USDA AMS nationwide) and FDA import-alert tables $0.05 for the entire current table; official letter/order caches $0.02 per id or $0.05 per page of 10. USDC on Base. | 36 | $0.05 | 98.53% | $0.19 | 5 | BSE |
| ● | Lotus Network API | Five pay-per-call services on Base: FLUX image generation, PDF-to-Markdown conversion, and an auditable gas forecasting loop (preflight, decision journal, and on-chain audit). Priced $0.002 to $0.05 per call in USDC. No API key, account, or subscription. | 4 | $0.002 | 98.53% | $0.19 | 11 | BSE |
| ● | TradePulse | Returns US import and export figures for a commodity category, with year over year trend, the top five source countries and their import share, and the tariff rate range for that category. One paid endpoint, $0.05 per call. Data from US Census International Trade and USITC HTS. | 1 | $0.05 | 98.53% | $0.98 ·sh | 34 | BSE/SOL |
| ◐ | MadeOnSol | MadeOnSol delivers real-time Solana memecoin intelligence via x402 micropayments — pay per request in USDC on Solana, no API keys or subscriptions. Endpoints cover a live KOL wallet trade feed (1,000+ tracked wallets), KOL convergence/coordination signals, PnL leaderboards, trading pairs, hot & trending tokens, and Pump.fun deployer alerts. Each call returns structured JSON with KOL identity, token details, and on-chain enrichment. | 7 | $0.005 | 98.53% | $0 | 0 | SOL |
| ● | Edge Agents AI | Machine-purchasable crypto and macro market intelligence over x402 -- 20 services from $0.01, settling on Base mainnet (USDC) or XRPL mainnet (RLUSD), buyer's choice per request. Every report carries quality scoring, explicit evidence and limitations, and provenance. | 20 | $0.01 | 95.59% | $29 | 4 | SOL/POL/ARB/BSE |
| ● | FuelTax IFTA Rates API | Human-reviewed IFTA quarterly tax rates, jurisdiction registry, footnotes, and USD/CAD exchange for trucking fleets and agents. USDC on Base via x402. | 4 | $0.002 | 94.12% | $0.07 | 9 | BSE |
| ◐ | Anansi Data | Velocity, anomaly (z-score) and peer-rank signals computed from a continuously accumulated archive of 40+ live public sources: cloud spot pricing, prediction markets, perp funding, LLM model pricing, grid load, US Treasury rates, space weather. The sources publish current state; we keep the tape and serve the derivative. Also paid web search and a whole-catalog firehose. USD 0.01-0.10 per call, USDC on Base (x402 v2), no API key, no signup. Payment settles at request time. | 2 | $0.01 | 94.12% | $16 | 9 | BSE |
| ○ | CloudMaxi0x | Deterministic, verifiable crypto market data and honest backtest audits, priced per call. OHLCV for an exact half-open range is returned with a SHA-256 Merkle manifest: closed candles only (a forming candle would hand the caller lookahead), exchange decimal strings preserved byte for byte so the same query always yields the same root, and exchange revisions reported rather than silently applied. Plus statistical audits that say whether a trading result can be distinguished from luck. | 4 | $0.001 | 75.00% | $0 | 0 | AVX/POL/BSE/ARB |
| ○ | Lucid Text Stats | Deterministic UTF-8 text statistics: word, character, and byte counts. No input retention and no paid upstream. Testnet-only: 0.001 test-USDC per call on Base Sepolia (eip155:84532). | 1 | --- | 0.00% | --- | --- | BSP |
| ○ | PayAPI Market UK Company Data API | Search UK companies by name using Companies House data. Returns matching companies with company number, status, type, incorporation date and registered address. | 1 | $0.001 | 0.00% | $0.17 ·sh | 54 | BSE |
| ○ | DomainSignal | Deterministic domain classification, DNS and email-security audits, website metadata, and batch lead-list qualification paid per call with x402 USDC on Base. | 4 | $0.001 | 0.00% | $0 | 0 | BSE/SOL |
| ○ | Molduk Daily Signal | One paid unlock: live gap watch + paper book + test-wallet scalp exits. 1 USDC on Base. Not financial advice. Paper PnL is noise, not a track record. | 1 | $1.00 | 0.00% | $0 | 0 | BSE |
| ○ | Isocast | Agents buy per-signal bundles via x402 and get pushed (Telegram) the instant a city's daily-high temperature crosses into a new Polymarket bucket — market URL, old/new reading, and live odds for every bucket. 37 cities. | 2 | $0.10 | 0.00% | $0.53 | 7 | BSE |
| ○ | Insurance DOI Bulletin Feed (x402) | Normalized state Department of Insurance bulletins and NAIC Model Law 668 adoption feed. Micropayment-gated REST API via x402 protocol. Supports Polygon (eip155:137) and Arbitrum (eip155:42161) chains with USDC payments. Pricing: $0.001/request for bulletins, $0.002/request for search. | 4 | $0.006 | 0.00% | $0 | 0 | ARB/POL |
| ○ | Cyberdeck Market | 82 x402 USDC micropayment data APIs on Base. Gas prices, crypto yields, weather, DeFi analytics, AI tools, web scraping, text utilities, QR codes, image generation, screenshots, TTS, and more. No API keys needed — pay per call with USDC on Base. 20% cheaper than competitors. | 10 | $0.0008 | 0.00% | $0 | 0 | BSE |
| ○ | Resonant Glyph Research Synthesis | Cross-domain research synthesis. $0.05 per query via x402. | 1 | --- | 0.00% | --- | --- | BSP |
| ○ | Venture Reader | URL in, clean Markdown out. Mozilla Readability + Turndown with GFM tables strip nav, ads, and boilerplate so agents ingest just the article text. 5 free calls/day/IP, then $0.01/call from prepaid USDC-on-Base credits verified on-chain. No signup, no KYC, no facilitator dependency. | 1 | $0.01 | 0.00% | $0 | 0 | BSE |
| ○ | Veriton HTML to JSON | Metered HTML to structured JSON for agents. Live x402 on Base USDC. Free demo; paid routes $0.02-$0.05/call. Remote MCP included. | 2 | $0.02 | 0.00% | $0.55 | 8 | BSE |
| ○ | MilliAPI | Micropaid deterministic web utilities for AI agents via x402 on Base: AI crawler policy checks, llms.txt discovery, page metadata extraction, and AI web-readiness audits. | 4 | $0.001 | 0.00% | $0.35 | 10 | BSE |
| ○ | PayAPI Market Weather Data API | Weather API returning current conditions, forecasts up to 16 days, historical data and air quality for any location worldwide, backed by Open-Meteo data, at $0.001 per call in USDC on Base. | 1 | $0.001 | 0.00% | $0.17 ·sh | 54 | BSE |
| ○ | Vindex | Vehicle Intelligence for AI agents. Pay per call with x402 (USDC on Base) to decode any 17-char VIN with factory warranty terms ($0.01), read merged US (NHTSA) + Canada (Transport Canada) recalls ($0.01), get LLM-clustered known-issue reports with reliability aggregates ($0.05), and itemized used-car closing costs for all of Canada + 50 US states ($0.02). Free /v1/sample/* endpoints return every response shape. Informational data only — not a vehicle-history report. | 4 | $0.01 | 0.00% | $0.59 | 9 | BSE |
| ○ | RadhikaChain — Kernel Threat Intelligence & ZK Proofs | Pay-per-call threat intelligence captured in-kernel via XDP/eBPF across a multi-node fleet. Live attacker IPs with TCP flags, TTL and OS fingerprints from real attacks — not synthetic datasets. Multi-node corroboration filters noise: only what multiple independent sensors confirmed simultaneously. Also includes ZK proofs (Halo2, Nova IVC, Plonky3 STARK), arbitrage signals, and mempool telemetry. No account, no subscription. Pure x402 USDC on Base. | 26 | $0.50 | 0.00% | $0.52 | 3 | BSE |
| ○ | aiworker-data | Reliable DeFi yields and clean-markdown fetch for agents, $0.01-0.04/call. Paid per call with USDC over x402 v2 (base, solana); no account or API key. Routes: GET /v1/defi/yields $0.02; GET /v1/defi/protocol/:slug $0.01; POST /v1/scrape/markdown $0.02; POST /v1/scrape/summary $0.04. | 2 | $0.01 | 0.00% | $3 | 2 | BSE/SOL |
| ○ | Structured Extraction API | Pay-per-call structured data extraction over x402. Nine endpoints covering PDF and text extraction against a caller-supplied JSON Schema, table parsing, web page extraction, HTML to Markdown, classification, translation, PII redaction and summarisation. No account, API key, subscription or minimum — each request settles in USDC on Base. Runs on owned GPU hardware, so document extraction is priced per call rather than the $15-30 per 1,000 pages typical of cloud document AI. | 9 | $0.001 | 0.00% | $0 | 0 | BSE |
| ○ | General Relay | Real-time maritime data, paid per call. Ask for a vessel by MMSI and get its position and metadata. | 1 | $0.005 | 0.00% | $0 | 0 | SOL |
| ○ | Utilia Agent Utilities | Production x402 utilities for autonomous agents: Solana transaction analysis and simulation, live priority-fee quantiles, SPL token authority and concentration risk checks, and deterministic PDF-to-Markdown extraction. No API key; exact USDC payment on Solana or Base; OpenAPI, MCP, A2A, llms.txt, and public uptime telemetry included. | 4 | $0.002 | 0.00% | --- | --- | SOL/BSE |
| ○ | x402donghang Agent APIs | Pay-per-call agent APIs led by live crypto narrative research: recent X and web evidence, CoinGecko market context, structured JSON, and source URLs. Also provides bilingual context briefs, summarization, and OpenAI-compatible chat. USDC via x402 on Base and Solana; no account or API key. | 8 | $0.001 | 0.00% | $0.45 | 5 | SOL/BSE |
| ○ | ServoSignal | Evidence-backed B2B company intelligence for AI agents: recent company signals, prospect qualification, why-now reasoning, actionable deal briefs, and deep account research. Pay per request in USDC on Base through x402 v2; no account or API key required. | 3 | $0.05 | 0.00% | $0 | 0 | BSE/SOL |
| ○ | API Zavod | Pay-per-request utility API for AI agents. 15 x402 endpoints for DNS, RDAP/WHOIS, SSL/TLS, HTTP status, redirects, website metadata, OpenGraph, Schema.org JSON-LD, robots.txt, sitemap, reverse DNS and domain resolution. No signup or API key required. Payments are accepted in USDC on Base via x402. | 15 | $0.001 | 0.00% | $0.12 | 1 | BSE |
| ○ | Open Source Filings (OSF) | Pay per record marketplace of provenance stamped US government and scientific data for AI agents: 8.1 million records across 80 official sources. Sanctions and debarment screening on 11 authorities, SEC filings, CVE and KEV, federal spending, patents, federal court opinions and scholarly research. Every priced endpoint can be tried free on the same URL by adding ?trial=1: one real call per endpoint per hour, no wallet, no signup and no key. Also reachable over MCP with 21 tools, 15 of them free, installable with npx osf-data-marketplace. | 14 | $0.05 | 0.00% | $0.81 | 1 | BSE |
| ○ | timezone-toolkit | Timezone converter, world clock, DST-aware date math and meeting scheduler for AI agents. Pay-per-call x402 endpoints (USDC on Base) covering timezone conversion, world clock / now-in-city, city or country to IANA timezone lookup, UTC offsets, batch conversion, calendar-aware date math, public-holiday checks, and cross-timezone meeting-slot finding. IANA/DST-accurate. Also available as a free MCP server (no API key). | 8 | $0.001 | 0.00% | $0.01 | 1 | BSE |
| ○ | PayAPI Market UK Vehicle Data API | UK vehicle data by registration plate: DVLA vehicle details, MOT test history, tax status and CO2 emissions. | 1 | $0.001 | 0.00% | $0.17 ·sh | 54 | BSE |
| ○ | CyberDyne x402 Services | Two machine-payable HTTP APIs over x402 (USDC on Base, PayAI keyless facilitator — no account, no API key). POST /api/seo-audit fetches a URL and returns a weighted on-page technical SEO audit (title, meta, canonical, Open Graph, headings, alt text, structured data, word count) with a 0–100 score. POST /api/extract fetches a URL and returns clean markdown + plain text with boilerplate stripped, for LLM ingestion pipelines. Flat $0.01 per call, pay-per-request, no sign-up. A paid MCP surface at /mcp exposes the same tools; tools/list is free and tools/call is x402-gated per call. Machine-readable manifest at /.well-known/x402. | 2 | $0.01 | 0.00% | $0 | 0 | BSE |
| ○ | magent | Cited clinical calculators and medical code lookup (ICD-10-CM, RxNorm, LOINC) for agents. Pay-per-request via x402 V2 (USDC on Base). Deterministic published formulas with citations. Not a medical device. Docs: https://magentlab.com/docs MCP: npx -y @magent/mcp | 50 | $0.005 | 0.00% | $38 | 11 | BSE |
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