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 2026-09-27. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
x402.ottoai.services insider-trades
SEC Form 4 insider trades for any US-listed company by ticker: who bought and sold (officer/director/10% owner), purch
answers 402 $0.003 base v2 GET 22d ago
agentreader.dev dns
DNS lookup over Cloudflare DoH: query A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA or PTR records for any domain and get
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services technical-signals
Daily technical snapshot for a vendor-resolved equity from licensed Tiingo adjusted closes: Wilder RSI-14, 20-session
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services equity-intel
Equity intelligence for any US-listed company by ticker: latest revenue & net income with YoY growth, net margin, EPS,
answers 402 $0.003 base v2 GET 22d ago
coinslot.dev api email-verify
Check an email address: RFC syntax, live MX records via DNS-over-HTTPS, and disposable-domain screening. POST { email
answers 402 $0.003 base v2 POST 22d ago
x402.swaphunt.dev price multi
Batch spot prices for up to 20 assets in one call — each with price, 24h change and volume, keyed by symbol. The cost-
answers 402 $0.003 base v2 GET 22d ago
action402.vercel.app execute webhook
Paid webhook/API execution for autonomous agents. Executes one public HTTPS action after x402 payment, applies retries
answers 402 $0.003 base v2 POST 22d ago
api.sirenic.eu eu recherche
European company search across official registers: company lookup by name, returning European company data in one unif
answers 402 $0.003 base v2 GET 22d ago
keyronne.com api email-validate
Validate email addresses: RFC-style syntax checks, IDN domain normalization, live MX lookups with A/AAAA fallback (DNS
answers 402 $0.003 base v2 POST 22d ago
keyronne.com api chain-block
Fetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timest
answers 402 $0.003 base v2 POST 22d ago
vibesprings.net infra health-check
API endpoint health checker and x402 compatibility scanner. Provide target url to fetch and check if it correctly impl
answers 402 $0.003 base v2 GET 22d ago
gpt55.558686.xyz tools x402-discovery-price-compare
Fetch up to 10 x402 discovery documents or service origins, extract paid resources, normalize USDC atomic amounts, and
answers 402 $0.003 base v2 GET 22d ago
data.greeneris.io fi company
Official Finnish company registry via PRH YTJ open data v3 (avoindata.prh.fi). Query: ?q=nokia for name search (best m
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services analyst-ratings
Analyst consensus for a vendor-resolved equity: the latest buy/hold/sell distribution (strong buy · buy · hold · sell
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services earnings-calendar
Earnings calendar and surprise history for a vendor-resolved equity: next report date/session with EPS and revenue est
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services dividend-intel
Cash-dividend intelligence for a vendor-resolved equity from licensed Tiingo end-of-day history: TTM dividend/share an
answers 402 $0.003 base v2 GET 22d ago
api.agentstools.dev crypto sentiment
Composite crypto market sentiment: the Fear & Greed index (value, classification, trend) blended with aggregated news-
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services token-fundamentals
Structured token fundamentals by ticker symbol (resolves to the top-market-cap asset matching it): price, market cap,
answers 402 $0.003 base v2 GET 22d ago
api.agentstools.dev search news
Keyword news search across web news engines (Bing/DuckDuckGo/Yahoo via ddgs). Returns dated headlines with title/url/s
answers 402 $0.003 base v2 GET 22d ago
agent402.tools memory remember
Store a piece of text for later similarity recall - a per-wallet semantic index an agent cannot host in-session. Retur
answers 402 $0.003 base v2 POST 22d ago
gblin.digital x402 attestation
EIP-712-signed risk attestation, verifiable OFFLINE in one step — no trust in this server required. Perishable (10-min
answers 402 $0.003 base v2 GET 22d ago
api.24klabs.ai api weather-current
Current temperature, wind, humidity, and conditions for any lat/lon (Open-Meteo, keyless).
answers 402 $0.003 base v2 POST 22d ago
data.greeneris.io no company
Official Norwegian company registry (Enhetsregisteret) via data.brreg.no, Bronnoysund Register Centre. Query: ?q=equin
answers 402 $0.003 base v2 GET 22d ago
402signal.com route
402Signal checks x402 routes across Base, Solana, and Algorand before spending. $0.003 only when a valid live route is
answers 402 $0.003 base v2 POST 22d ago
netintel.dev weather forecast
Multi-day weather forecast for any city or lat/lon worldwide — up to 16 days of daily highs/lows, precipitation & prob
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services tokenized-stock-movers
Day movers for tokenized US stocks on TWO rails in one call: Robinhood Chain (chainId 4663, ~95 names) and Base B20 (1
answers 402 $0.003 base v2 GET 22d ago
chain.cyberwarex.com ens
ENS name resolution in both directions on Ethereum mainnet. Pass name to resolve an ENS name to its address (forward),
answers 402 $0.003 base v2 GET 22d ago
search.cyberwarex.com search
Web search that returns structured SERP results as JSON. Runs on a dedicated SearXNG instance aggregating multiple eng
answers 402 $0.003 base v2 GET 22d ago
rubric-protocol.com hedera-facts all
All thirteen attested Hedera network facts in one call at GET /v1/x402/hedera-facts/all, each carrying its own attesta
answers 402 $0.003 base v2 GET 22d ago
farouter.tech chat completions
Fixed-price chat completions for gpt-5.6-sol on FarOut: flat $0.005 per call (includes up to 4,000 input + 1,000 outpu
answers 402 $0.003 base v2 POST 22d ago
farouter.tech chat completions
Fixed-price chat completions for gpt-5.5 on FarOut: flat $0.004 per call (includes up to 4,000 input + 1,000 output to
answers 402 $0.003 base v2 POST 22d ago
x402tap.com api web-search
Real-time web search (via Exa) — ranked results with title, URL, published date, author, and relevance score for a que
answers 402 $0.003 base v2 GET 22d ago
api.oblique.markets paid bazaar-category-heat
Use when an agent needs bazaar category heat. Returns x402 Bazaar category heat map: every listing in the latest daily
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services 8k-material-events
8-K filings by ticker — the item-coded SEC material-event feed: every 8-K a US-listed company filed in 90 days, tagged
answers 402 $0.003 base v2 GET 22d ago
api.agentservices.to v1 fx
Real-time FX/forex rates for 30+ currencies
answers 402 $0.003 base v2 GET 22d ago
ai-data-marketplace-1042299154756.us-central1.run.app v1 stock_quotes
Get current stock market data for one ticker, including the latest available quote, daily OHLC values, and volume from
answers 402 $0.003 base v2 GET 22d ago
api.macaroonnetwork.com execute polymathica-archive-record-v1
Retrieve one sanitized archive metadata record by asset id, including content hash, readiness state, field inventory s
answers 402 $0.003 base v2 POST 22d ago
x402.ottoai.services web-links
Extract all links (hrefs) from any web page as structured JSON — every internal, external and anchor link, deduplicate
answers 402 $0.003 base v2 GET 22d ago
x402.ottoai.services form-4-feed
Latest insider trades feed across ALL US-listed companies — the 20 most recent SEC Form 4 filings by acceptance time,
answers 402 $0.003 base v2 GET 22d ago
chain.cyberwarex.com tx
Transaction lookup and decode on any major EVM chain. Turns a raw tx hash into agent-readable facts: success or failur
answers 402 $0.003 base v2 GET 22d ago
ai-data-marketplace-1042299154756.us-central1.run.app v1 weather_forecast
Get current weather conditions and a one-to-seven-day forecast for a geocoded location from Open-Meteo.
answers 402 $0.003 base v2 GET 22d ago
apiacre.com crypto base-account-status
Check one Base mainnet wallet or contract for ETH and official USDC balances, transaction nonce, and contract-bytecode
answers 402 $0.003 base v2 POST 22d ago
api.oblique.markets paid bazaar-trending
Use when an agent needs bazaar trending. Returns x402 Bazaar trending report: services gaining settled calls and uniqu
answers 402 $0.003 base v2 GET 22d ago
api.oblique.markets paid bazaar-new-listings
Use when an agent needs bazaar new listings. Returns x402 Bazaar new listings: resources that appeared in the latest d
answers 402 $0.003 base v2 GET 22d ago
api.oblique.markets paid bazaar-seller-rank
Use when an agent needs bazaar seller rank. Returns x402 Bazaar seller leaderboard: top 25 seller addresses ranked by
answers 402 $0.003 base v2 GET 22d ago
api.oblique.markets paid x402-facilitator-health
Use when an agent needs x402 facilitator health. Returns Live health probe of the two x402 facilitators this service s
answers 402 $0.003 base v2 GET 22d ago
api.oblique.markets paid base-usdc-balance
Use when an agent needs base usdc balance. Returns Check a Base wallet’s USDC balance on the canonical Base USDC contr
answers 402 $0.003 base v2 GET 22d ago
api.oblique.markets paid base-tx-status
Use when an agent needs base tx status. Returns Return Base transaction success or revert state, block number, confirm
answers 402 $0.003 base v2 GET 22d ago
agent-api-production.tim1712.workers.dev web resource-preflight
Use before spending tokens, money or crawler capacity fetching an unfamiliar web resource. Resolves redirects (manuall
answers 402 $0.003 base v2 POST 22d ago
agent-api-testnet.tim1712.workers.dev web resource-preflight
Use before spending tokens, money or crawler capacity fetching an unfamiliar web resource. Resolves redirects (manuall
answers 402 $0.003 base-sepolia v2 POST 22d ago
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