{"data":[{"slug":"heron","name":"Heron","description":"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.","base_url":"https://heronapp.io","website_url":"https://heronapp.io","category":"AI","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.250197,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":310,"last_checked_at":"2026-07-04T09:33:00.391Z","created_at":"2026-07-02T20:13:25.690Z"},{"slug":"netintel","name":"NetIntel","description":"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).","base_url":"https://netintel.dev","website_url":"https://netintel.dev","category":"AI","status":"online","verified":false,"endpoint_count":37,"min_price_usd":0,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":80,"last_checked_at":"2026-07-04T09:25:02.752Z","created_at":"2026-07-01T13:57:51.651Z"},{"slug":"anchor-x402","name":"anchor-x402","description":"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) - the first non-USDC settlement rail in the directory.","base_url":"https://api.anchor-x402.com","website_url":"https://anchor-x402.com","category":"Blockchain","status":"unknown","verified":false,"endpoint_count":16,"min_price_usd":0.001,"networks":["SOL","BSE"],"uptime_24h":null,"avg_response_time_ms":null,"last_checked_at":null,"created_at":"2026-07-01T13:57:50.990Z"},{"slug":"hypernatt-terminal","name":"HyperNatt Terminal","description":"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.","base_url":"https://hypernatt.com","website_url":"https://hypernatt.com","category":"Finance","status":"online","verified":false,"endpoint_count":6,"min_price_usd":0.001,"networks":["SOL","BSE"],"uptime_24h":97.06,"avg_response_time_ms":78,"last_checked_at":"2026-07-04T09:37:00.383Z","created_at":"2026-07-01T13:52:42.659Z"},{"slug":"aeo-audit-api","name":"AEO Audit API","description":"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.","base_url":"https://aeo.agentlair.dev","website_url":"https://synligdigital.no","category":"AI","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.25,"networks":["BSP","BSE"],"uptime_24h":100,"avg_response_time_ms":304,"last_checked_at":"2026-07-04T09:37:00.290Z","created_at":"2026-07-01T13:52:42.174Z"},{"slug":"sovereign-execution-engine","name":"Sovereign Execution Engine","description":"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.","base_url":"https://api.zuluworksai.com","website_url":"https://api.zuluworksai.com","category":"AI","status":"online","verified":false,"endpoint_count":9,"min_price_usd":0.001,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":116,"last_checked_at":"2026-07-04T09:37:01.232Z","created_at":"2026-07-01T13:52:41.657Z"},{"slug":"logigrain","name":"LogiGrain","description":"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).","base_url":"https://logigrain.net","website_url":"https://logigrain.net","category":"Other","status":"online","verified":false,"endpoint_count":4,"min_price_usd":0.001,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":116,"last_checked_at":"2026-07-04T09:37:00.428Z","created_at":"2026-07-01T13:52:41.085Z"},{"slug":"webbersites-x402-data-api","name":"WebberSites x402 Data API","description":"Pay-per-call data API for AI agents on Base (USDC via x402). Four endpoints: clean URL→Markdown web scraping, IP geolocation (country/region/city/coords/timezone), live crypto spot price + 24h change, and enriched crypto market reports. No accounts, no API keys — agents pay per request.","base_url":"https://api.webbersites.com","website_url":"https://api.webbersites.com","category":"Data","status":"online","verified":false,"endpoint_count":4,"min_price_usd":0.001,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":104,"last_checked_at":"2026-07-04T09:37:00.511Z","created_at":"2026-07-01T13:52:40.575Z"},{"slug":"tantra-authority-the-naked-press-catalog","name":"Tantra Authority — The Naked Press catalog","description":"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}.","base_url":"https://api.tantra-authority.com","website_url":"https://tantra-authority.com","category":"Content","status":"online","verified":false,"endpoint_count":1,"min_price_usd":19.97,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":230,"last_checked_at":"2026-07-04T09:37:00.439Z","created_at":"2026-07-01T13:52:40.094Z"},{"slug":"weather","name":"Weather","description":"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.","base_url":"https://weather.x402.press","website_url":"https://x402.press","category":"Data","status":"degraded","verified":false,"endpoint_count":9,"min_price_usd":0.000625,"networks":["BSE","POL","AVX","ARB"],"uptime_24h":100,"avg_response_time_ms":244,"last_checked_at":"2026-07-04T09:28:01.790Z","created_at":"2026-06-25T07:35:32.890Z"},{"slug":"aviation-x402","name":"Aviation x402","description":"Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments.","base_url":"https://aviation.x402.press","website_url":"https://x402.press","category":"Data","status":"degraded","verified":false,"endpoint_count":3,"min_price_usd":0.000625,"networks":["AVX","ARB","POL","BSE"],"uptime_24h":100,"avg_response_time_ms":350,"last_checked_at":"2026-07-04T09:28:00.808Z","created_at":"2026-06-25T07:35:32.696Z"},{"slug":"2s-io","name":"2s.io","description":"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.","base_url":"https://2s.io","website_url":"https://2s.io","category":"Data","status":"online","verified":false,"endpoint_count":6,"min_price_usd":0.001,"networks":["BSE","SOL"],"uptime_24h":100,"avg_response_time_ms":249,"last_checked_at":"2026-07-04T09:28:01.058Z","created_at":"2026-06-25T07:35:32.474Z"},{"slug":"gedx402","name":"GEDX402","description":"Cloudflare Workers AI hub with x402 v2 USDC. Hero integrator funnel: scrape-lite, open-answer, cited-research-pack. https://gedx402.com/docs/integrator-quickstart","base_url":"https://embed.gedx402.com","website_url":"https://gedx402.com","category":"AI","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.0036,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":963,"last_checked_at":"2026-07-04T09:28:00.790Z","created_at":"2026-06-25T07:35:32.309Z"},{"slug":"vigil","name":"VIGIL","description":"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.","base_url":"https://mcp.vigil.codes","website_url":"https://vigil.codes","category":"Blockchain","status":"online","verified":false,"endpoint_count":3,"min_price_usd":0.005,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":426,"last_checked_at":"2026-07-04T09:28:01.484Z","created_at":"2026-06-25T07:35:32.129Z"},{"slug":"sntl-helium-intelligence","name":"SNTL Helium Intelligence","description":"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.","base_url":"https://a2a.sntl.site","website_url":"https://sntl.site","category":"Blockchain","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.01,"networks":["SOL"],"uptime_24h":100,"avg_response_time_ms":1483,"last_checked_at":"2026-07-04T09:28:01.591Z","created_at":"2026-06-25T07:35:31.928Z"},{"slug":"crest-wallet-intelligence","name":"Crest Wallet Intelligence","description":"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.","base_url":"https://data.crestsystems.ai","website_url":"https://crestsystems.ai","category":"Data","status":"online","verified":false,"endpoint_count":4,"min_price_usd":0.002,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":215,"last_checked_at":"2026-07-04T09:28:00.651Z","created_at":"2026-06-25T07:35:31.727Z"},{"slug":"payperbyte","name":"PayPerByte","description":"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.","base_url":"https://x402.payperbyte.io","website_url":"https://www.payperbyte.io","category":"Data","status":"degraded","verified":false,"endpoint_count":22,"min_price_usd":0.003,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":133,"last_checked_at":"2026-07-04T09:28:02.327Z","created_at":"2026-06-25T07:35:31.449Z"},{"slug":"aicomglobal","name":"aicomglobal","description":"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.","base_url":"https://aicomglobal.com","website_url":"https://aicomglobal.com","category":"AI","status":"online","verified":false,"endpoint_count":2,"min_price_usd":0.01,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":433,"last_checked_at":"2026-07-04T09:28:00.820Z","created_at":"2026-06-25T07:35:31.259Z"},{"slug":"agent-web-reader-x402","name":"Agent Web Reader (x402)","description":"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.","base_url":"https://x402.charliemorrison.dev","website_url":"https://github.com/charlie-morrison/x402-agent-data","category":"Data","status":"online","verified":false,"endpoint_count":3,"min_price_usd":0.002,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":339,"last_checked_at":"2026-07-04T09:28:01.368Z","created_at":"2026-06-25T07:35:30.967Z"},{"slug":"anyapi","name":"AnyAPI","description":"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}.","base_url":"https://api.getanyapi.com","website_url":"https://getanyapi.com","category":"Data","status":"online","verified":false,"endpoint_count":3,"min_price_usd":0.001,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":393,"last_checked_at":"2026-07-04T09:28:01.334Z","created_at":"2026-06-25T07:35:30.787Z"},{"slug":"agentutility","name":"agentutility","description":"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.","base_url":"https://x402.agentutility.ai","website_url":"https://x402.agentutility.ai/","category":"AI","status":"online","verified":false,"endpoint_count":9,"min_price_usd":0.0025,"networks":["BSE","SOL"],"uptime_24h":100,"avg_response_time_ms":824,"last_checked_at":"2026-07-04T09:28:09.661Z","created_at":"2026-06-25T07:35:30.558Z"},{"slug":"curl-http-request","name":"Curl HTTP Request","description":"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","base_url":"https://curl-http-request.underscoredone.com","website_url":"https://underscoredone.com/curl_http_request/","category":"Data","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.01,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":782,"last_checked_at":"2026-07-04T09:28:00.628Z","created_at":"2026-06-25T07:35:30.283Z"},{"slug":"biotech-catalyst-sentinel","name":"Biotech Catalyst Sentinel","description":"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.","base_url":"https://api.biotechcatalystsentinel.com","website_url":"https://biotechcatalystsentinel.com","category":"Data","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.02,"networks":["SOL","BSE"],"uptime_24h":100,"avg_response_time_ms":726,"last_checked_at":"2026-07-04T09:28:00.894Z","created_at":"2026-06-25T07:35:30.027Z"},{"slug":"invoket","name":"Invoket","description":"Invoket is an x402 payment gateway that lets AI agents call business-data and compliance APIs pay-per-call — no account, no API key, settled in USDC on Base or Solana. Coverage: IBAN validation with bank/BIC resolution and SEPA reachability, sanctions screening (OFAC/EU/UN/FATF), IBAN repair for OCR/invoice ingestion, offline phone validation and live HLR/SIM-swap fraud checks, French (LEGI) and EU (EUR-Lex) law-in-force lookups, and historical climate (ERA5) plus weather forecasts (GFS). Single and batch variants on every family.","base_url":"https://api.invoket.com","website_url":"https://invoket.com","category":"Data","status":"online","verified":false,"endpoint_count":15,"min_price_usd":0.01,"networks":["SOL","BSE"],"uptime_24h":100,"avg_response_time_ms":113,"last_checked_at":"2026-07-04T09:28:01.072Z","created_at":"2026-06-25T07:35:29.672Z"},{"slug":"txdecode","name":"txdecode","description":"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.","base_url":"https://txdecode.com/api/v1","website_url":"https://txdecode.com","category":"Data","status":"online","verified":false,"endpoint_count":1,"min_price_usd":0.005,"networks":["BSE"],"uptime_24h":100,"avg_response_time_ms":404,"last_checked_at":"2026-07-04T09:39:01.189Z","created_at":"2026-06-16T16:06:26.216Z"}],"meta":{"total":86,"page":1,"per_page":25,"total_pages":4}}