Services
The x402 service directory, ranked by verified on-chain volume. Add one to an agent as a skill and pay per call — no key, no account. To compare every seller of one job on a shared price, see Unified Services.
x402 call market
Listed price · per call255,686 priced of 258,113 matched · 4,046 providers
$0.010
Median
$0.0020$0.040
- $0.0050
- p25
- $0.010
- p75
- $0.0000
- low
- $1,000,000.00
- high
The box is the middle half of the market, $0.0050 to $0.010; the whiskers reach the 10th and 90th percentiles and the axis between them is logarithmic. Listed prices only — what a service asks, not what it was paid.
CategoryAll categories
258,113 services matched
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
x402.ottoai.services 81 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX on select endpoints. From $0.001 per call. | $0.0010 | $0.001(1) | 15 | 4 | Live | ||
x402.ottoai.services 81 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX on select endpoints. From $0.001 per call. | $0.0010 | $0.001(1) | 15 | 7 | Live | ||
www.x402pulse.dev Best hospitals ranking for a U.S. state or city from Centers for Medicare & Medicaid Services (CMS) Care Compare data: ranked by CMS star rating, then net score (quality measures better than national… | $0.0084 | — | 15 | 4 | Live | ||
www.x402pulse.dev Drug safety signal detection (pharmacovigilance) from FDA FAERS: side effects reported disproportionately often with a drug versus all other drugs, using the proportional reporting ratio (PRR) and chi… | $0.014 | — | 15 | 4 | Live | ||
www.x402pulse.dev Data your AI agent can buy by the call: skill-ranked Polymarket traders, FDA drug and hospital data, and crude oil intelligence. Paid per call in USDC with x402, no API key or account. | $0.0028 | — | 15 | 6 | Live | ||
www.x402pulse.dev Data your AI agent can buy by the call: skill-ranked Polymarket traders, FDA drug and hospital data, and crude oil intelligence. Paid per call in USDC with x402, no API key or account. | $0.0084 | — | 15 | 4 | Live | ||
BTC Ecosystem RadarSearch x402-btc-radar.jinli-x402.workers.devBitcoin L1 radar v3: BRC-20/Runes/Alkanes/Stamps + ordinals-nft early mint radar; candidate_protocols summary hook only. Full unverified new-protocol evidence is on /v1/btc/radar/candidates ($0.50). $… | $0.010 | — | 15 | 8 | Live | ||
x402-factory.com Only the calendar events added or resolved changed since your cursor (delta of / — Keyset delta of /v1/calendar: pass since=<next_cursor from your last call> and get only the calendar events added or… | $0.0050 | — | 15 | 5 | Live | ||
x402-mcp.onrender.com Deploy and scale any app or agent from your first user to your billionth. Build faster on intuitive cloud infrastructure for the modern web. | $0.010 | — | 15 | 8 | Live | ||
x402-seller-pmlm.onrender.com Gas price: live gas fees for Ethereum, Base, Arbitrum, Polygon and Solana in one call. Use before sending a transaction to pick a fee or the cheapest chain. Returns base fee, slow/standard/fast priori… | $0.0010 | — | 15 | 9 | Live | ||
x402.glassnode.com Balance on Exchanges (Total) — The total amount of coins held on exchange addresses. Data by Glassnode. | $0.050 | — | 15 | 4 | Live | ||
x402.orthogonal.com Discover, call, and pay for the tools your agent needs: company data, the live web, and email, through one integration. $10 free credits, pay per call, no subscription. | $0.120 | — | 15 | 1 | Live | ||
x402.orthogonal.com Discover, call, and pay for 800+ endpoints from 50+ verified providers, through one integration. Pay per call, no subscription. | $0.025 | — | 15 | 1 | Live | ||
x402.orthogonal.com Discover, call, and pay for the tools your agent needs: company data, the live web, and email, through one integration. $10 free credits, pay per call, no subscription. | $0.040 | — | 15 | 2 | Live | ||
x402.orthogonal.comSearch x402.orthogonal.comSearch tweets by query string. Supports Twitter search operators. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offs… | $0.040 | — | 15 | 3 | Live | ||
x402.orthogonal.com Discover, call, and pay for the tools your agent needs: company data, the live web, and email, through one integration. $10 free credits, pay per call, no subscription. | $0.060 | — | 15 | 1 | Live | ||
x402.orthogonal.comSearch x402.orthogonal.comPost Comments Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass… | $0.020 | — | 15 | 1 | Live | ||
x402.payperbyte.io NWS weather forecasts for 5 US cities (NYC, LA, Chicago, Houston, Miami) | $0.0050 | — | 15 | 6 | Live | ||
x402.problocks.io AI agent monetization infrastructure. Automatic per-call billing via crypto or fiat settlement rails. One-line integration, instant revenue. | $0.0010 | — | 15 | 12 | Live | ||
x402endpoint-utiwoa54hq-uc.a.run.app Order a gift card from the catalog. Browse available cards at GET /search-gift-cards. | $5.24 | — | 15 | 3 | Live | ||
x402engine.appTrading x402engine.appx402engine — Market rankings with price, volume, market cap — filterable by category | $0.0020 | — | 15 | 7 | Live | ||
xhagents.xyzTrading xhagents.xyzOne 0-100 safety score for a Base token before an agent buys: liquidity, top-10 holder concentration, owner powers in the bytecode, upgradeability (EIP-1967), explorer/Sourcify verification, creator h… | $0.050 | — | 15 | 4 | Live | ||
MCP Operation RiskOther 87-106-119-237.sslip.ioAnalyze operation-level risk inside consolidated MCP tools. Returns evidence-backed ALLOW, DENY, or REQUIRE_APPROVAL decisions, retry semantics, schema-drift status, and a deterministic operation effe… | $0.0045 | — | 14 | 1 | Live | ||
ads.forgemesh.io Install one middleware. Monetize unused 402 responses with recommendations, discovery, and machine commerce analytics. | $0.0050 | — | 14 | 7 | Live | ||
aether-x402.vercel.app Is this Base token safe to buy, or a honeypot, rug pull or scam? Simulates a real buy and sell to prove the token can be sold and to measure buy and sell tax, then checks mint, blacklist, pause and fe… | $0.010 | — | 14 | 3 | Live |
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will find and price a paid API you can call over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
Verified volume and provider trust are Roundhouse-only signals; activity is settlements to the service's payee wallet over 30 days, 5-day smoothed. 258,113 catalog entries indexed.
Show the promptHide the prompt
Using Roundhouse, find x402 endpoints that can do what I need, tell me what each call costs, and whether the endpoint answered when last probed. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=<what-you-need>' Then check the merchant's real payment record before paying: curl -s 'https://api.roundhouseai.io/v0/merchants/<payTo-wallet>' Always read the price from the live 402, never from a cached figure. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.