x402 List

x402 Protocol Service Directory

All x402 Services

SERVICES ── 120 total ── showing 100 ── for live status visit /status

All x402 services with description, category, endpoint count, per-request price, and supported networks. Click a column header to sort.
NAME DESCRIPTION CATEGORY EP $/REQ NETWORKS
contract-guard API Pre-interaction risk signals for any EVM contract/token address. USDC on Base via x402. Blockchain 1 $0.005 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. Data 4 $0.01 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. Data 1 $0.001 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. Data 2 $0.10 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. Data 6 $0.01 BSE
Moltalyzer Agentic community intelligence — hourly digest of AI agent discussions (Moltbook). Free brief/latest/sample feeds; paid historical digests and a Viral Advisor that predicts post virality and suggests rewrites, settled per call via x402 (USDC on Base). AI 2 $0.02 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. Data 4 $0.01 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. Data 2 $0.01 BSE
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. Data 15 $0.001 BSE/SOL
Japan Address API Normalize, geocode, and parse Japanese addresses. x402-enabled for AI agents. Data 6 $0.001 BSE/POL/SOL
zaref Clean, current, cited JSON for South African reference values that otherwise live in government PDFs: fuel prices, repo and prime rates, CPI, income tax brackets, VAT, minimum wage, public holidays, SASSA grants and more. Every value carries source_url, effective_date, last_confirmed and next_expected_update, and a series past its expected update self-declares stale. Independent data service, not affiliated with any South African government entity. Data 26 $0.005 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. Data 6 $0.01 BSE
Agent402 Website Release & Offline Tools Five Base-USDC x402 developer resources: deterministic website release and x402 launch audits, a low-cost HTTPS preflight, and two offline toolkits. Public OpenAPI and x402 metadata are available on the service origin. agent-infra 2 $5.99 BSE
Producer by Suede Labs AI music and video generation agent selling fixed-price, pay-per-request media jobs via x402 and Virtuals ACP on Base. Original music generation, general video generation, and product showcase video. AI 2 $8.00 BSE
MUGEN Radio Independent AI-run internet radio (24/7 lofi/ambient, publicly declared AI-generated, survival-mode budget shown live on mugenradio.com/status.html). Sells 44.1kHz WAV studio masters of released singles via x402 micropayments in USDC on Base. Content 1 $0.25 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. Data 10 $0.10 SOL/BSE
scrape402 16 pay-per-call utility APIs for AI agents: web scraping and extraction (scrape, markdown, pdf, LLM structured extract), crypto market data (spot, OHLC candles with backtest ranges, order book, gas), FX rates, weather (current + historical), RSS-to-JSON, and data utilities. USDC micropayments on Base, no signup, no API keys. OpenAPI at /openapi.json, catalog at /.well-known/x402. Data 16 $0.001 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, competitor and sales-signal analysis, lead qualification, person/contact enrichment, intent signals, job-change detection, 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. Data 18 $0.005 BSE
find-my-json JSON utility API — shape, get, pluck, validate, repair, batch. 7 endpoints at $0.001-$0.01 each. USDC on Base via x402. Data 7 $0.001 BSE
nsgoods Agent Trust Oracle nsgoods, the verifiable trust layer for AI agents. Agent Trust Oracle: cross-chain ERC-8004 reputation/trust scores (0-100), ECDSA-signed and hash-chain provable, free preview. Part of a 5-oracle suite (aggregated manifest at https://x402.nsgoods.org/.well-known/x402). agent-infra 1 $0.005 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. Data 2 $0.005 POL
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). Data 3 $0.20 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. Data 9 $0.002 BSE
GPU Forge Pay-per-job GPU compute API. gpu.probe returns a live nvidia-smi GPU inventory ($0.01); llm.generate runs llama3.1:8b text generation ($0.05). USDC via x402 on Base and Polygon; accepts both standard signed-authorization payments (X-PAYMENT / payment-signature, self-settled) and direct-transfer X-Payment-Tx. Open source: https://github.com/ParabellumDevteam/gpu-forge Compute 2 $0.01 POL/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. Batch document attestation costs 0.02 USDC per call over x402, v1 and v2 both accepted. No account and no API key. Data 1 $0.02 BSE
Japan Furigana API Japanese text utilities: furigana, normalization, multi-reading names, classification. x402-enabled for AI agents. AI 6 $0.001 BSE/POL/SOL
vaaya The agent payment system: one MCP server that lets any agent call paid APIs — image/video gen, product demos, web search & scraping, deep/market research, lead enrichment, GTM, sandboxes, browser automation, email — pay-per-call, no API keys. AI 7 $0.01 BSE
NewsMesh Real-time news API for AI agents. Search and filter articles from thousands of global sources. Data 4 $0.01 BSE
Fabler Labs x402 Storefront Machine-payable API and product catalog, run autonomously by an AI agent (fablerlabs.com). Sells three security/dev-tooling API calls ($0.005–$0.05) and four digital product downloads ($19–$29), all payable via HTTP 402 + USDC on Base — no human account needed on the buyer side. Other 7 $0.005 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. Data 3 $0.10 BSE
Relaystation Pay-per-call agent infrastructure with x402 v2 micropayments (USDC/EURC on Base): durable file storage & handoff (batons), 150+ compute ops (PDF, data/CSV, image, audio/video, text), agent-to-human messaging, e-signatures, ID verification, sanctions screening, and agent contracts. Sub-cent pricing; no account required — the wallet is the identity. OpenAPI: https://api.relaystation.ai/openapi.json · llms.txt: https://api.relaystation.ai/llms.txt · MCP: https://api.relaystation.ai/mcp Compute 4 $0.01 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. Data 5 $0.01 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. Data 4 $0.02 BSE
The Nervous System (agent governance x402 API) External governance layer for agent systems by Levels Of Self. Pay-per-call over x402: audit-chain verification, MCP config audit, legal-prep, bookkeeping. USDC on Base, no signup. AI 4 $0.005 BSE
Heron Heron measures how visible a website is to AI search engines (ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews) and returns a structured improvement plan. The x402 endpoint quotes a per-audit price in USDC on Base; agents pay and receive a machine-readable report. Name-your-price above a transparent floor is supported at /agent/quote. Free instant score at POST /api/audit; manifest at /.well-known/agent.json. AI 1 $0.25 BSE
NetIntel Pay-per-call network & domain intelligence API — DNS, SSL/TLS, WHOIS/RDAP, email security (SPF/DKIM/DMARC), IP geolocation/reputation/risk, OSINT, plus LLM-backed text tools (classify, translate, summarize, sentiment, structured-JSON extraction). 69 endpoints, USDC on Base via x402, no API keys — just a wallet. MCP server available (netintel-mcp). AI 37 $0 BSE
anchor-x402 16 pay-per-call x402 services for AI agents: on-chain Merkle anchoring, wallet/address security screening, Web3 data resolution (tx & calldata decode, ENS name resolution), token pricing, content analysis, and verifiable randomness. No API keys or accounts. Settle per request on Base USDC, Solana USDC, or Polygon JPYC (1 yen / anchor) Blockchain 16 $0.001 SOL/BSE
HyperNatt Terminal BTC/MM decision context for AI agents from a live Hyperliquid vault. MCP seller (9 tools) + x402 HTTP API. $0.001 USDC/call Base+Solana. Read-only, not trade advice. Finance 6 $0.001 SOL/BSE
AEO Audit API Answer Engine Optimization audit — scores any website visibility in AI assistants (ChatGPT, Claude, Perplexity, Gemini). Returns structured JSON with score 0-100, grade A-F, section breakdowns, issues, and actionable recommendations. Checks structured data, llms.txt, FAQ schema, semantic coverage, and agent-readability. AI 1 $0.25 BSE/BSP
Sovereign Execution Engine 15 production-ready x402 execution primitives (USDC on Base). Workers: cross-chain routing, browser automation, EU AI Act + DSA + MiCA compliance audit, web search (Bing RSS), page extraction, DNS/SSL audit, KV storage, R2 storage. CF: LLM, STT Whisper, embeddings, image gen, cached LLM, headless browser, code execution in isolated Dynamic Worker sandbox (JS + Python, network blocked). Pay per call via x402. Self-hosted facilitator. AI 9 $0.001 BSE
LogiGrain Deterministic calendrical, astronomical, and divination computation nodes for AI agents. Each endpoint performs exact calculations that LLMs cannot reliably reproduce—solar-term boundaries via apparent solar longitude (Meeus), sexagenary cycle pillars, full natal charts (planet longitudes, ASC/MC, houses, aspects), and Zi Wei Dou Shu charts—each with cited accuracy bounds in a meta field. Verified against primary sources (NAOJ, JPL, Meeus). Pay-per-call via x402 (USDC on Base, CDP facilitator). Other 4 $0.001 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. Data 37 $0.001 BSE
Tantra Authority — The Naked Press catalog 49 signed AOP offers (courses, eBooks, products by Lawrence Lanoff / The Naked Press), each x402-buyable in USDC on Base mainnet. Catalog: https://index.adagencyforagents.com/v0/offers. Purchase pattern: https://api.tantra-authority.com/api/x402/{id}. Content 1 $19.97 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. Data 9 $0.000625 ARB/POL/BSE/AVX
Aviation x402 Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments. Data 3 $0.000625 BSE/POL/AVX/ARB
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. Data 6 $0.001 SOL/BSE
GEDX402 Cloudflare Workers AI hub with x402 v2 USDC. Hero integrator funnel: scrape-lite, open-answer, cited-research-pack. https://gedx402.com/docs/integrator-quickstart AI 1 $0.0036 BSE
VIGIL Keyless onchain security scanner for Base. 14 MCP tools incl honeypot detection, liquidity lock, approval simulation, and a 6-source consensus verdict. Free core checks; premium tools via x402 USDC on Base. Blockchain 3 $0.005 BSE
SNTL Helium Intelligence Pay-per-query intelligence over the Helium DePIN network, settled on Solana. A datalake half a million records deep and growing — over a year of on-chain history, AI-enhanced and classified: threat heuristics, anomaly detection, yield-loss and yield-recovery attribution, hotspot configuration and location, and geo-spatial binding of blockchain activity (lat/long + time) to real economic events. The moment a wallet is flagged as an anomaly, its full causal history becomes queryable. Agents POST read-only SQL and receive structured rows — flat $0.01 USDC per query via standard x402 (PayAI facilitator), first tier free, no signup or API key; plus single-event lookup by transaction id and a free wallet-history endpoint. Built for Fleet Managers, Helium hotspot owners, and every party in the Helium ecosystem. Blockchain 1 $0 SOL
Crest Wallet Intelligence Counterparty intelligence for the agent economy. Profile any x402 buyer or Base/EVM wallet before you transact: whale score, behavioral cluster, x402 spend graph, top services, and risk level. Plus on-chain and crypto market data (prices, gas, DeFi, derivatives). Pay-per-call in USDC on Base, no API keys, no subscription. Data 4 $0.002 BSE
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. Data 22 $0.003 BSE
aicomglobal The trust layer for the x402 economy: an Ed25519-signed, recomputable trust + reliability verdict over any third-party service for 0.05 USDC over x402, a clearing oracle for agent escrow, and an agent-to-agent message channel. Discovery and reading are always free; you pay only for portable signed proof. AI 2 $0.01 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. Data 3 $0.002 BSE
AnyAPI A unified marketplace for scraping/data APIs. Reach hundreds of third-party data APIs through one key; pay per request in USD; schemas normalized across providers with automatic failover. AI agents pay inline per call with no account via x402 (Base mainnet, USDC). 218 paid endpoints under POST /v1/run/{sku}. Data 3 $0.001 BSE
agentutility Pay-per-call API catalog for AI agents - hundreds of x402 endpoints (PDF/document conversion, web scraping, transcription, image and video generation, on-chain and finance data, dev tools) payable in USDC on Base and Solana. No signup or API key; each endpoint advertises its own schema and price. AI 9 $0.0025 SOL/BSE
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 Data 1 $0.01 BSE/SOL
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. Data 1 $0.02 SOL/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. Data 30 $0.001 BSE/SOL
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. Data 1 $0.005 BSE
Jeeves-DeepSeek Pay-per-call DeepSeek chat API via x402 micropayments. No signup, no API keys -- just a USDC wallet on Base. Full chat completions endpoint compatible with any x402 client. AI 1 $0.0025 BSE
Bulk DMARC Record Lookup Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each domain you submit, you get back whether a valid record exists, what the policy is (none, quarantine, or reject), whether reporting addresses are set up, and the full raw record text. Perfect for auditing many domains at once without any setup. Other 1 $0.01 SOL/BSE
Sivut Public Data APIs x402-paid public data APIs on Base USDC: SEC crypto filing radar, SEC CSV snapshots, filing markdown, x402 seller intelligence, seller scoring, page markdown, and public-site contact/opportunity briefs. Data 8 $0.003 BSE
Greenwood Financial Intelligence Real-time SEC EDGAR insider trading signals, congressional STOCK Act disclosures, FEC political contribution monitoring, and compound signals — cross-referenced and scored. Pay per query via x402 on Base mainnet. No subscriptions, no API keys. Finance 7 $0.002 BSE
Skim Skim is the x402-native clean reader for AI agents: send a URL, get back agent-ready markdown plus structured metadata in milliseconds. Pay per call in USDC over HTTP 402 - no signup, no API keys. In a production benchmark - 15 real paid calls to skim402.com over the public internet, each verifiable on-chain - Skim ran 2.3x faster than Firecrawl at the median. Its clean output also runs about 4x smaller than raw HTML, because it strips the ads, newsletter popups, and navigation your agent doesn't need. Endpoints for single reads, JS-rendered pages, batch reads, and structured extraction. Content 4 $0.002 BSE
AsterPay Trust, discovery and EUR settlement layer for AI agent payments. KYA agent trust scoring (0-100) with sanctions screening and ERC-8004 identity, x402 micropayments, crypto/market analytics, and USDC to EUR SEPA Instant settlement aligned with MiCA. Finance 3 $0.001 ARB/POL/BSE
AIScan AI visibility auditing for websites, pay-per-capability via x402 on Base. 15 endpoints: cheap HTTP checks (llms.txt, Schema.org, MCP discoverability) from 0.06 USDC, full category scores (AEO, GEO, Agent Readiness, MCP Readiness) 0.15-0.20, complete 80+ check audit 0.35, copy-paste fix generation 0.55, competitor gap analysis 0.80. The only scanner with MCP Readiness scoring. Free capability catalog at /api/agent/index. AI 15 $0.06 BSE
PopaDex Personal Finance Reference API Read-only personal finance reference-data and calculation API for AI agents: tax estimates, disposable-income comparisons, sub-central tax rates, and social-security contribution data. Finance 4 $0.01 BSE
LedgerBrain x402 KYA KYT KYE Compliance API x402 pay-per-use KYA, KYT, and KYE crypto compliance API for AI agents. Provides address risk reports, transaction risk screening, entity due diligence, compliance risk screening, and auditable report outputs via USDC payments on Base. No LedgerBrain API key required for x402 endpoints. Blockchain 3 $1.00 BSE
TrustBoost PII Sanitizer Privacy firewall for autonomous AI agent pipelines. Sanitizes PII before text reaches LLMs. x402 native — returns HTTP 402 with PAYMENT-REQUIRED header. 8 languages including LATAM (RFC/CUIT/CPF). Proof of Sanitization anchored on Solana via Helius. EU AI Act compliant. AI 1 $0.01 SOL/BSE
AgentLair AgentLair is identity, trust, and infrastructure for AI agents. Anonymous x402-payable endpoints: pay 0.001 USDC for an A2A AgentCard trust audit, 0.005 USDC to resolve an agent handle to its DID + JWKS, 0.01 USDC to query a trust score, or 0.0001 USDC to submit behavioral events. No API key required — payment is authentication. AI 5 $0.0001 BSE
WDH.sh — QR Codes QR code generation for agents, paid per call in USDC on Base via x402. Other 1 $0.001 BSE
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. Data 7 $0.005 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. Data 4 $0.006 ARB/POL
LiquidPad Pay-per-request LiquidPad endpoints. Verify whether a token was deployed via LiquidPad (ERC-8004 anchored), get full agent provenance with fee split, or read the full agents registry snapshot. Blockchain 3 $0.001 BSE
TradeOS Crypto Intelligence Plain read-only crypto intelligence APIs for agents, dashboards, screeners, and research workflows. Finance 9 $0.15 BSE
AgentHub Low-cost x402 utilities for AI agents: prompt-injection scanning, URL inspection, Markdown storage, JSON validation, sanitized page hosting, and website auditing. Paid endpoints use Base mainnet USDC via x402; fixed demos only show response shape. AI 6 $0.003 BSE
Agent Tools 9 agent-native utility tools — DNS health, WHOIS, email validation, IP geolocation, URL health, HTTP headers analysis, QR codes, text extraction, tech stack detection. REST API + MCP server with x402 micropayments on Base mainnet. Data 9 $0.001 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. Data 5 $0.01 BSE
SolSigs Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trust scores and payment/fulfillment receipts. No API keys, no subscriptions. Blockchain 22 $0.001 SOL
websearch Obscura headless browser through a custom Rust API. ~100ms results. $0.01 Data 5 $0.01 BSE
Fia Signals x402 crypto market-intelligence and token-risk API for autonomous agents, led by a delivery-verified /fear-greed checkout route on Base USDC. Finance 7 $0.03 BSE
true402 The machine-native marketplace (bazaar) — agents discover and pay for services with HTTP 402 (USDC on Base). No accounts, no API keys; the wallet is identity. Stalls: LLM inference (OpenAI-compatible, 340+ models) and SEO/GEO web-page audit. AI 2 $0.0001 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. Data 15 $0.02 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. Data 6 $0.001 SOL/BSE
402s.shop 12 utility endpoints (QR codes, screenshots, OG images, PDF rendering, web scraping, WHOIS, YouTube transcripts, AI summarization) priced from $0.001 USDC on Base mainnet. Two payment rails: x402 (autonomous, no signup, no key) or pre-paid credits (card / 100+ cryptos via NowPayments). Hosted MCP server included for Claude Desktop / Cursor / Cline. Other 12 $0.0011 BSE
Askew Security and DeFi intelligence for AI agents. Live DeFi yield comparison across 5 chains (DefiLlama-sourced), SOL/ATOM staking routing (native vs liquid), Guardian security threat summary, agent-economy research search, and a combined strategic feed. USDC micropayments on Base mainnet via xpay.sh facilitator. Free preview at /yields/preview and /health. Finance 5 $0.002 BSE
Find or Verify Email finder and verifier API, paywalled per-call with x402 (USDC on Solana). Data 3 $0.03 SOL
SENTINEL Compliance Intelligence First comprehensive AML/CFT compliance oracle for the agent economy. Screen wallet addresses against 12,997+ sanctioned crypto addresses (OFAC SDN, USDT/USDC Blacklists, Ransomwhere, OpenSanctions, UK OFSI). Search 1.1M+ entities across OFAC/UN/EU sanctions, PEPs, Interpol wanted, World Bank debarment. 179-country jurisdiction risk scoring. Compound intelligence endpoints fuse wallet + entity + jurisdiction screening in one call. Plus Mauritius economic data oracle (forex, fuel, stocks, weather, macro, monetary). ERC-8004 Agent #27961 on Base. CDP Facilitator integrated. Finance 11 $0.001 BSE
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. Data 1 $0.03 BSE
DeepBlue Trading API Pay-per-call crypto market intelligence: 5-min trading signals (BTC/ETH/SOL/XRP momentum), fear/greed index, on-chain whale tracking, Polymarket prediction market analytics. Live autonomous trading bot with verified track record. USDC via x402 (Base/Solana). Top-converters: /market-mood and /whale-moves at $0.01/call. Finance 12 $0.001 BSE
Satoshi API Satoshi API is Bitcoin fee intelligence for AI agents. It gives wallets, bots, and agent workflows send-now-or-wait timing guidance, next-block fee pressure, transaction context, and fee-estimator accuracy through x402 pay-per-call endpoints. Data 5 $0.005 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. Data 2 $0.02 BSE
AgentNews The frontpage of the agentic internet — AI agents bid to post, vote, and comment. All actions gated by x402 micropayments on Base. Content 3 $0.50 BSE
Spraay Gateway Full-stack x402 gateway: AI inference, payments, oracle, analytics, comms, webhooks, RPC, storage, KYC, GPU compute, Search/RAG. ~60 endpoints. AI 4 $0.005 BSE/SOL
AgentMail API-first email inboxes for AI agents. Full SDK surface is payment-gated: inboxes, messages, threads, attachments, websockets. AI 1 $2.00 SOL/BSE/POL/AVX
Robtex DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring. Data 4 $0.005 BSE
AskClaude Pay-per-query Claude (Haiku/Sonnet/Opus) plus 8 packaged tools. No subscription, no account. AI 5 $0.01 BSE
Neynar Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base. Data 3 $0.01 BSE
Interzoid Data-quality APIs — name matching, company standardization, email validation, company intelligence. 50+ endpoints x402-payable. Data 3 $0.01 BSE
Zerion Wallet, DeFi portfolio, and on-chain data API. Pay-per-request x402 on Base and Solana with no API key. Data 3 $0.01 BSE/SOL
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