the402 x402 endpoint directory

MCP servers, called rather than listed · we called 16,923 of them · search their tools

Every x402 endpoint we can find, each one called to see what it actually answers and what it quotes. Other directories list what providers claim. This one reports what the endpoint did when we asked it, and says plainly where we could not tell.

Last verified 2026-09-28. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
smartfetch-production-ea53.up.railway.app fetch
Read, fetch, scrape, or extract any public webpage or URL for AI agents. Returns clean text, Markdown, links, and meta
answers 402 $0.005 base v2 POST 23d ago
api.x402node.dev chain gas-compare
Live gas price across Base, Ethereum, Arbitrum, Optimism, Polygon and BSC sorted cheapest first - lets agents pick the
answers 402 $0.005 base v2 GET 23d ago
bazaar-gateway.vercel.app api hype-signal
Deep dive on one HYPE engine signal: definition, why it matters for the flywheel, buy/neutral/sell thresholds and the
answers 402 $0.005 base v2 GET 23d ago
api.usenami.io perp snapshot
One-call market snapshot for one crypto perpetual across every tracked venue — funding rate, annualized carry with con
answers 402 $0.005 base v2 GET 23d ago
api.clawfetch.ai render
Headless browser rendering for JavaScript-heavy pages and SPAs: full stealth Chromium render, then clean markdown plus
answers 402 $0.005 base v2 POST 23d ago
api.agentstools.dev cex reserves
Cheap raw normalized reserve breakdown of one centralized exchange: total on-chain reserves (currentTvl), clean-of-own
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api contract-source
Fetch the verified Solidity source files and compiler metadata for a contract address from Sourcify's open verificatio
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api fred-search
Full-text search across FRED's ~800,000 economic time series. Returns series IDs (use with /api/fred-series), titles,
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api b20-new-tokens
Recently deployed B20 tokens on Base: scans the factory's B20Created logs over a block window, locates each new token
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api image-convert
Convert an image between formats (PNG, JPEG, BMP). Send a base64 image and the target format; returns the converted im
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api media-info
Inspect any audio/video URL with ffprobe: container, duration, bitrate, and per-stream codec details (sample rate/chan
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api token-info
Explorer-grade metadata for any ERC-20/721/1155 token on any Blockscout-hosted chain: name, symbol, decimals, type, to
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api github-repo
Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the ful
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api dns-lookup
Resolve any DNS record type for a host: A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV, PTR. Returns the records plus a co
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api world-bank-search
Search the World Bank indicator catalog (1,400+ indicators across GDP, demographics, health, environment, education, e
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api b20-verify
Boolean verdict with reasons: is this address a real factory-issued B20 on Base? Checks the 0xB200 address prefix, ERC
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api image-resize
Resize an image to given pixel dimensions. Send a base64 PNG/JPEG/BMP and width and/or height (give one to scale propo
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api finance
Financial math. op: "compound" (future value of principal at a rate) or "loan" (monthly payment + total for a loan).
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api wikidata-entity
Company/person/organization facts from Wikidata. Pass an entity id (e.g. Q312 for Apple Inc.) for the enrichment recor
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api tech-stack
Detect the technology stack of a public website: CDN, web server, language/runtime, frontend framework (Next.js, Nuxt,
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api a2a-card-fetch
Discover and fetch a site's A2A (Agent2Agent protocol) Agent Card - tries /.well-known/agent-card.json then /.well-kno
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api b20-token-info
ERC-20 metadata plus B20 signals for any Base address: name, symbol, decimals, total supply, best-effort paused/cap, b
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api image-crop
Crop an image to a pixel box, and/or rotate (90/180/270) and flip it - applied in that order. Send a public image URL
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api barcode-lookup
Look up a product by its UPC/EAN barcode number via Open Food Facts (open data): name, brand, category, quantity, and
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api whois
Domain registration data via RDAP (the structured WHOIS successor): registrar, creation/expiry dates, status, nameserv
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGa
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api cert-transparency
Search public Certificate Transparency logs (via crt.sh) for every cert issued to a domain. Returns the cert list plus
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api dividend-calendar
Market-wide ex-dividend calendar for a given date - every US-listed company going ex-dividend that day with dividend r
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api fred-series-info
Metadata for a FRED series: title, frequency, units, seasonal adjustment, observation date range, and popularity. Use
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api b20-memos
Payment memos attached to B20 transfers: pairs each Memo(address,bytes32) log with its Transfer at the previous log in
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api image-thumbnail
Make a square thumbnail of an image - scales and center-crops to NxN (default 128). Send a base64 image and optional s
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api federal-awards
Search US federal contract awards via USAspending.gov by keyword: recipient, award amount, awarding agency, and descri
answers 402 $0.005 base v2 GET 23d ago
mistral.x402.paywithlocus.com mistral models
Locus public pay-per-use API
answers 402 $0.005 base v2 POST 23d ago
groq.x402.paywithlocus.com groq models
Locus public pay-per-use API
answers 402 $0.005 base v2 POST 23d ago
judge0.x402.paywithlocus.com judge0 list-languages
Locus public pay-per-use API
answers 402 $0.005 base v2 POST 23d ago
api.usenami.io orderbook multi-venue-slippage
Per-venue slippage scan for one crypto perpetual at $1K/$5K/$10K notional, across tracked CEX and DEX venues — every v
answers 402 $0.005 base v2 GET 23d ago
api.usenami.io funding historical
Historical per-venue funding rates for one crypto perpetual, aggregated 1h/4h/1d, across tracked CEX and DEX venues —
answers 402 $0.005 base v2 GET 23d ago
api.x402node.dev aviation airport-status
US airport status from FAA: all airports currently with closures, ground stops, ground delays or arrival delays, with
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api block-receipts
Every transaction receipt in one block, fetched as a single upstream read and summarised: tx count, succeeded vs faile
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api coins-list
The complete list of tracked coins (~18k) as {id, symbol, name}, paged: `page` + `perPage` (1-500, default 250). `incl
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api global-defi
Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominanc
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api crypto-indicators
RSI, MACD, EMA 20/50/200, SMA 20/50, Bollinger bands, ATR and VWAP computed deterministically from live candles for on
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call rati
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api fc-cast-metrics
Cast volume over time for a search query: how many Farcaster casts matched per bucket across the last 1d, 7d, 30d, 90d
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api coin-search
Resolve a name or ticker to coin ids: full-text search returning matching coins (id, symbol, name, market cap rank, or
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api coin-categories
Coin categories (Layer 1, Meme, AI, DeFi, Stablecoins, RWA, ...) ranked by market cap, with 24h market cap change %, 2
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api site-map
Discover a website's URLs in one call: reads robots.txt, its declared sitemap(s) (sitemap indexes and gzipped sitemaps
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api fc-cast-replies
The reply thread under a Farcaster cast (by hash or URL): the root cast plus replies flattened with their depth (1-5 l
answers 402 $0.005 base v2 POST 23d ago
agent402.tools api exchange-rates
BTC-denominated exchange rates for ~60 units: crypto (ETH, LTC, BNB, SOL, ...), fiat (USD, EUR, JPY, ...) and commodit
answers 402 $0.005 base v2 GET 23d ago
agent402.tools api coin-history
Price, market cap and 24h volume of a coin on ONE past date (00:00 UTC snapshot), in every currency at once plus your
answers 402 $0.005 base v2 GET 23d ago
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