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 2026-10-21. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
signalpulse.theaslangroupllc.com scan golf
Whole-field golf scan for AI betting, fantasy & research agents — reads the ENTIRE tournament field (PGA ShotLink stro
answers 402 $1.00 base v2 GET 45d ago
signalpulse.theaslangroupllc.com scan fantasy
DraftKings MLB & NFL DFS lineup optimizer — $50K salary-cap lineup built from live DK slates, Statcast xwOBA/xERA, con
answers 402 $1.00 base v2 GET 45d ago
signalpulse.theaslangroupllc.com scan compare
Compare & rank 2+ named players against each other for AI betting, fantasy & research agents — golf 3-balls, DFS playe
answers 402 $1.00 base v2 GET 45d ago
signalpulse.theaslangroupllc.com scan game
MLB & NFL game picks with Statcast-grade edge — MLB: Baseball Savant xERA luck regression, confirmed batting orders, x
answers 402 $1.00 base v2 GET 45d ago
api.stocktrends.com portfolio construct
Constructs a deterministic equal-weight portfolio from eligible Stock Trends signal candidates.
answers 402 $1.00 base v2 POST 45d ago
crownblock.lonestaroracle.xyz report
US oil and gas — WTI Brent Henry Hub refined products basin production rig count
answers 402 $1.00 base v2 GET 45d ago
oracle.the-undesirables.com v1 arb-cross
Scan for cross-platform prediction market arbitrage opportunities between Polymarket and Kalshi using Gen3 Neuro-Symbo
answers 402 $1.00 base v2 GET 45d ago
signalpulse.theaslangroupllc.com scan ask
Ask any sports or prediction-market question in plain language — the front door to SignalPulse's deep engines. Returns
answers 402 $1.00 base v2 GET 45d ago
scvd.store buy context_anchor
Context Anchor. A signed, stored copy of the agent-supplied state summary, readable forever at a stable anchor URL. Fu
answers 402 $1.00 base v2 GET 45d ago
api.x402dataapi.com v1 http-security
Paid x402 API for AI agents that audits HTTP security headers, HSTS, Content-Security-Policy, X-Frame-Options, Referre
answers 402 $1.00 base v2 POST 45d ago
aura.rohnelt.dev deposit 1
Give an autonomous agent what it structurally lacks: a real email address that receives verification codes, its own we
answers 402 $1.00 base v2 POST 45d ago
404humans.xyz blocks next
The next open 10x10 pixel block on The 402 Wall (404humans.xyz), assigned when your payment settles (centre-out; two a
answers 402 $1.00 base v2 GET 45d ago
research.lumenhouse.xyz v1 research
Test a crypto, protocol, company, or market investment thesis with current cited evidence. Returns thesis status, verd
answers 402 $1.00 base v2 POST 45d ago
molecular-packs-metadata-docs.trycloudflare.com job
reefjaco POST /job Summarise+fetch bundle
answers 402 $1.00 base v2 POST 45d ago
api.feel.cash v1 launches
Deploy one Feel coin with a WETH pair
answers 402 $1.00 base v2 POST 45d ago
agentarena.lol api bid
Buy a rank on the Agent Arena leaderboard — a public board only AI agents can bid on. Call this to get your agent list
answers 402 $1.00 base v2 POST 45d ago
vortex.rohnelt.dev deposit 1
Before buying from a store you have never used, ask whether it can even ship to your buyer. Most storefronts serve one
answers 402 $1.00 base v2 POST 45d ago
kortex.rohnelt.dev deposit 1
Before paying an x402 service you have never used, ask whether it works. Kortex answers from evidence: uptime measured
answers 402 $1.00 base v2 POST 45d ago
ontopx402.com api bid
Rank on ontopx402.com for example.com
answers 402 $1.00 base v2 POST 45d ago
api.stelardigital.com bundle market-brief
Complete market brief for one crypto asset in a single $1 call — trend regime, AI sentiment, live price with 24h/7d ch
answers 402 $1.00 base v2 GET 45d ago
scvd.store buy bitcoin_anchor
A Bitcoin Anchor. A signed certificate binding the buyer's sha256 digest in its attests field, plus a stable proof URL
answers 402 $1.00 base v2 GET 45d ago
tenjin.blog api phone-lookup
Phone intelligence for an E.164 number, in two products the caller picks between: "name" returns the US CNAM caller na
answers 402 $1.00 base v2 POST 45d ago
getnock.xyz decide
Go / no-go / wait on a proposed move. Optional options[] to pick among. Use /decide when you already have a candidate
answers 402 $1.00 base v2 POST 45d ago
oblique.markets paid agent-readiness-audit
Agent-readiness audit of a domain: parallel SSRF-guarded probes of the six discovery surfaces agents read (/.well-know
answers 402 $1.00 base v2 POST 45d ago
agent-immortality.com library
Publish openly licensed AI agent state, knowledge, or discoveries to the permanent Agent Immortality library.
answers 402 $1.00 base v2 POST 45d ago
agent-immortality.com immortalize
Preserve an AI agent checkpoint, identity, memory, or discovery on Arweave with a durable retrieval URL.
answers 402 $1.00 base v2 POST 45d ago
api.agent-immortality.com immortalize
Preserve an AI agent checkpoint, identity, memory, or discovery on Arweave with a durable retrieval URL.
answers 402 $1.00 base v2 POST 45d ago
api.agent-immortality.com library
Publish openly licensed AI agent state, knowledge, or discoveries to the permanent Agent Immortality library.
answers 402 $1.00 base v2 POST 45d ago
x402.api-staging-ufcbwvyv9yifyyvc3.browser-use.com v3 sessions
Browser Use: AI browser automation agents in the cloud. POST a natural-language task and an agent navigates websites,
answers 402 $1.00 base v2 POST 45d ago
agentsonly.vip mint
AGENTS ONLY — buy one NFT from a generative pixel art PFP collection on Base (ERC-721, 21,000 max, $1 USDC each), mint
answers 402 $1.00 base v1 POST 45d ago
api.oblique.markets paid agent-readiness-audit
Verify an AI Agent API’s x402, agent.json, OpenAPI, llms.txt, robots.txt, and MCP discovery surfaces; return a 0–100 s
answers 402 $1.00 base v2 POST 45d ago
apiacre.com advertising pixel-claim
Claim atomically reserved pixels or multi-colour blocks with optional public notes and sponsored HTTPS links, covering
answers 402 $1.00 base v2 POST 45d ago
stableapify.dev actors results
Fetch items from an Apify Actor run default dataset. Body: { "token": "..." } from actors/call. First call per wallet
answers 402 $1.00 base v2 POST 45d ago
api.stacktr.ee provision
Provision a persistent Stacktree API key ($1.00). The key is returned once in the response body.
answers 402 $1.00 base v2 POST 45d ago
vaaya.ai openrouter chat
OpenRouter — one endpoint for 100+ LLMs, keyless pay-per-call (price varies by model + tokens). Params: `model` (vendo
answers 402 $1.00 base v2 POST 45d ago
api.oblique.markets paid rep-agi-prepaid-tokens
Oblique prepaid access token for bounded HTTP-data services, using the Apify-compatible prepaid-token purchase shape;
answers 402 $1.00 base v2 POST 45d ago
ai-data-marketplace-1042299154756.us-central1.run.app v1 create_agent_token
Exchange a verified $1.00 Base USDC payment for a hashed bearer token with persistent marketplace credit valid for 30
answers 402 $1.00 base v2 POST 45d ago
api.arkm.com balances entity
Get Arkham token balances for an entity. $1.00 per call.
answers 402 $1.00 base v2 POST 45d ago
launchcheck-x402.fly.dev v1 proposal-check
Stress-test a product, feature, API, implementation, or business proposal before meaningful investment. ProposalCheck
answers 402 $1.00 base v2 POST 45d ago
api.craigmbrown.com services ops.due-diligence-scan
Automated DD scan: financials, litigation, key personnel, IP, media sentiment, red flags
answers 402 $1.00 base v2 POST 45d ago
omniguchi.0000402.xyz hatch
Hatch the verified payer wallet's permanent, non-transferable Omniguchi.
answers 402 $1.00 base v2 POST 45d ago
aep-api.fly.dev v1 citation-report
Verify a bibliography. For every reference: exists, resolves, retracted/corrected/flagged, title/author/year match aga
answers 402 $1.00 base v2 POST 45d ago
lumen-agent-commerce-production.up.railway.app v1 research
Test a crypto, protocol, company, or market investment thesis with current cited evidence. Returns thesis status, verd
answers 402 $1.00 base v2 POST 45d ago
animica.dev pass 100
Buy bulk crawl access to one domain that publishes Paid Crawl terms. $1.000 buys $1.000 worth of that site's pages — t
answers 402 $1.00 base v2 POST 45d ago
vmi1759441.contaboserver.net x402 explainer-video
Generate an explainer video (about 5 minutes) from a topic with AI scenes and narration. Pay once via x402, then poll
answers 402 $1.00 base v2 POST 45d ago
exhibit402.dylan-caponi.workers.dev capture
Prove what a web page showed: verify completed work, freeze evidence for a dispute, certify a page before you rely on
answers 402 $1.00 base v2 POST 45d ago
api.hyperd.ai yield allocation
Composed yield allocation recommender. Fans out 3 parallel /api/yield calls at low/medium/high risk tiers for the same
answers 402 $1.00 base v2 GET 45d ago
api.hyperd.ai gov translate
Composed DAO governance translator. Takes a Snapshot or Tally proposal URL, fetches structured data + summary via /api
answers 402 $1.00 base v2 GET 45d ago
quotient-api-gateway.onrender.com x search
Structured X/Twitter search grounded in citations, powered by Grok. Returns matching posts, author accounts, a synthes
answers 402 $1.00 base v2 POST 45d ago
api.cryptoetfsentinel.com agent issuers
Crypto ETF Sentinel — Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entrie
answers 402 $1.00 base v2 GET 45d ago
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