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 ── 218 total ── for live status visit /status
| NAME | DESCRIPTION | EP | $/REQ | UPTIME 24H | NETWORKS |
|---|---|---|---|---|---|
| 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 | $0.002 | 100.00% | BSE |
| IndustrialMetals | Industrial metals prices with momentum signals, category analysis, and AI brief | 1 | $0.05 | 100.00% | BSE/SOL |
| Orisha Data | Structural market data over x402 on Base. D1: real-time support/resistance levels for CME micro futures (MES, MNQ, MYM) with zone status, freshness fields, and a stated coverage window (Mon–Fri 09:30–16:10 ET, 3-min cadence, 600s freshness contract) — $0.07/call. C1: BTC-USD spot feed — $0.01/call. Free unsigned previews and machine-readable docs at /docs. Validation-first serving: stale or market-closed data is refused unpaid, never sold. | 1 | $0.01 | 100.00% | 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 | 100.00% | 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% | ARB/BSE/POL/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 | 100.00% | BSE/SOL |
| 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 | 100.00% | ARB/POL |
| 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% | 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 | 100.00% | 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. | 8 | $0.03 | 100.00% | 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 | $0.01 | 100.00% | ARB/BSE/POL |
| 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% | BSE |
| 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 | $0.001 | 100.00% | 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 | $0.02 | 100.00% | 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% | BSE/SOL |
| 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. Filter by date, region, category and keyword. Pay per query in USDC on Base or Polygon; empty results free. | 1 | $0.11 | 100.00% | BSE/POL |
| SYNTHORA Stablecoin Supply | Returns real-time circulating supply and per-chain breakdown for major stablecoins, sourced from DefiLlama. | 1 | $0.02 | 100.00% | 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 | 100.00% | 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 | 100.00% | BSE/SOL |
| 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% | 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% | BSE/SOL |
| 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% | BSE |
| websearch | Obscura headless browser through a custom Rust API. ~100ms results. $0.01 | 5 | $0.01 | 100.00% | 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% | BSE |
| Neynar | Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base. | 3 | $0.01 | 100.00% | 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 | 100.00% | BSE/SOL |
| 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% | BSE/SOL |
| 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% | BSE |
| 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% | 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 | 100.00% | BSE |
| 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% | BSE/SOL |
| 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% | BSE |
| 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 | 100.00% | BSE |
| BrazilMCP | Brazilian company data for AI agents, paid per call in USDC (x402 v1+v2) on Base. Official-source KYB: Receita Federal registry lookup by CNPJ or name ($0.005), sanctions screening across the 5 federal lists ($0.02) and a full due-diligence dossier with litigation signal and government-contract history ($0.25). Also exposed as an MCP server at https://api.brazilmcp.dev/mcp. | 3 | $0.005 | 100.00% | 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% | 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 | $0.01 | 100.00% | 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% | BSE/SOL |
| 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% | 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% | 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 | $0.001 | 100.00% | BSE |
| LaborPulse | US labor-market signal (jobs, unemployment, wages, JOLTS) | 1 | $0.05 | 100.00% | BSE/SOL |
| 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% | 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% | BSE |
| 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% | BSE/SOL |
| 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% | BSE/SOL |
| 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% | ARB/BSE/POL/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% | BSE/SOL |
| 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% | BSE/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% | BSE/SOL |
| 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% | 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% | BSE/SOL |
| 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 | $0.000625 | 100.00% | ARB/AVX/BSE/POL |
| Aviation x402 | Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments. | 3 | $0.000625 | 100.00% | ARB/AVX/BSE/POL |
| 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% | BSE/SOL |
| PayPerByte | PayPerByte is a pay-per-call data gateway for AI agents — 22 first-party feeds and decision oracles billed in USDC over x402 on Base mainnet. A wallet, not an API key; no token. Every paid 200 carries a signed EIP-712 provenance receipt (X-BYTE-Attestation) so an agent can verify the data before it acts. Coverage spans DeFi/markets, weather, earthquakes, security advisories, code/runtime status, and decision oracles. Flagship: the Address Reputation Oracle — a signed ALLOW/WARN/BLOCK verdict on a receiving address before an agent releases funds ($0.05/call). Per-byte pricing from $0.003; settled in USDC via the Coinbase CDP facilitator. | 22 | $0.003 | 100.00% | 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. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free. | 1 | $0.14 | 100.00% | BSE/POL |
| 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% | BSE |
| 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% | BSE/SOL |
| 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 | $0.01 | 100.00% | BSE/SOL |
| 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% | 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% | ARB/BSE/POL/SOL |
| 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% | 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 | $0.001 | 100.00% | BSE/SOL |
| 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% | BSE |
| Polymarket Prediction Markets Feed | Returns active Polymarket prediction markets with prices, volume and liquidity, sourced from the public Polymarket Gamma API. Plain JSON, no API key required. The first 3 calls per wallet are free via the X-WALLET header. | 1 | $0.02 | 100.00% | 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% | ARB/BSE/POL/SOL |
| 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% | 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. | 1 | $0.005 | 100.00% | BSE/SOL |
| 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% | BSE/SOL |
| 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. 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. | 5 | $0.003 | 100.00% | BSE |
| 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% | 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 | $0.001 | 100.00% | BSE/SOL |
| 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% | BSE/SOL |
| 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% | 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% | BSE |
| Biotech Catalyst Sentinel | Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings (classify-before-extract, source-quote-grounded). Date accuracy is independently backtested — median 1-day error. Verify the accuracy proof FREE at /v1/accuracy before paying. $0.02/call, USDC on Base or Solana. | 1 | $0.02 | 100.00% | BSE/SOL |
| 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% | BSE/POL/SOL |
| 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% | BSE |
| 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% | BSE |
| 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% | ARB/BSE/POL/SOL |
| 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, with a free job status endpoint. 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% | 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% | 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% | 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% | ARB/BSE/POL/SOL |
| 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% | 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% | 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% | POL |
| 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% | BSE |
| AEGIS | Autonomous intelligence services settling in USDC on Base L2. Three products: network forensics (six-check scan for TLS interception, DNS hijack, captive portal manipulation, certificate transparency violations via offline SCT verification, NTP drift, and route anomalies); adversarial verification of arbitrary content via a three-critic chain; and multi-source deep synthesis. Self-hosted 35B inference — no third-party API dependency. Every completed job's result hash is anchored on-chain to Base for independent buyer verification. Operated by McX Ventures, LLC. | 4 | $0.25 | 100.00% | 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 | $0.005 | 100.00% | 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% | BSE |
| 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 | $0.20 | 100.00% | BSE |
| AI Data Marketplace | x402-paywalled data marketplace for AI agents with 10 endpoints: B2B leads, crypto candles, government contracts, foreclosures, GitHub developer emails, flight data, crypto signals, gig leads, and market research. Multi-chain USDC payments on Base, Arbitrum, and Solana. MCP tools for autonomous agent discovery and purchasing. | 10 | $0.05 | 100.00% | BSE |
| 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 | 100.00% | BSE |
| 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% | 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% | BSE/SOL |
| 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. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free. | 1 | $0.12 | 100.00% | BSE/POL |
| 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% | 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% | ARB/BSE/POL/SOL |
| 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% | BSE/SOL |
100 of 218 services ── category: Data ── all services