x402 Observatory
Every paid API in the public x402 directories, checked by LogicNodes: does it really answer with valid payment terms, how reliably, and how much USDC its payout address actually receives.
127,447paid endpoints listed
4,351providers
3,601 / 4,084live at last check / checked
$313,750USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 3001 | x402 Spend Cap/Allowance Check audit.liquidlogicx.com |
52.0 | live | 100% | $0.001 | 1 | 6 | $0.001 |
| 3002 | aura.adex.network aura.adex.network |
52.0 | live | 100% | $0.001 | 1 | 4 | $0.001 |
| 3003 | Infoharmoni Radar who ausrine-who.onrender.com |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3004 | bluepages.fyi bluepages.fyi |
52.0 | live | 100% | $0.001 | 1 | 4 | $0.001 |
| 3005 | BlueBreath x402 Seller br-green-truth-aumezwo2-bluebreathx402.compute.c-10.us-east-1.aws.neon.tech |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3006 | build-4c941cab041172e9439ece2f.emblem.build build-4c941cab041172e9439ece2f.emblem.build |
52.0 | live | 100% | $0.001 | 1 | 12 | $0.001 |
| 3007 | canonicalhash canonicalhash-production.up.railway.app |
52.0 | live | 100% | $0.001 | 1 | 4 | $0.001 |
| 3008 | Coin Flip coinflip402.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3009 | darrylbots.com darrylbots.com |
52.0 | live | 100% | $0.001 | 1 | 3 | $0.001 |
| 3010 | darwin-business-calendar.onrender.com darwin-business-calendar.onrender.com |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3011 | FastX402 Lab fastx402.tools |
52.0 | live | 100% | $0.001 | 1 | 169 | $0.001 |
| 3012 | TELAGO Execution Intelligence favpulse.media |
52.0 | live | 100% | $0.001 | 1 | 3 | $0.001 |
| 3013 | files.camelai.io files.camelai.io |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3014 | First Fold Utility Tool first-fold-48h.tatoespitia.chatgpt.site |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3015 | Caller E2E - x402 functions.miniup.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3016 | liquita-x402-edge.liquita.workers.dev liquita-x402-edge.liquita.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 2 | $0.001 |
| 3017 | longwatch longwatch.dev |
52.0 | live | 100% | $0.001 | 1 | 2 | $0.001 |
| 3018 | lookup.bustercall.workers.dev lookup.bustercall.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 32 | $0.001 |
| 3019 | Meme Generator memegeneratorx402.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3020 | oc-person-c.nvprotas.name oc-person-c.nvprotas.name |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3021 | TELAGO Execution Intelligence ozeejewwpjmabshxyitc.supabase.co |
52.0 | live | 100% | $0.001 | 1 | 36 | $0.00 |
| 3022 | SEC Recent Filings x402 pa-entity-x402.floot.app |
52.0 | live | 100% | $0.001 | 1 | 4 | $0.001 |
| 3023 | Crypto Price Consensus patch-guard-api.me-e51.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3024 | ENI Micro Feed payai-eni-x402.systempayroll880.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 7 | $0.001 |
| 3025 | Penniless JSON Repair penniless-json-repair.sjaman.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3026 | playground.llliiiii.workers.dev playground.llliiiii.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3027 | Random Choice random.preflightstack.com |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3028 | redlynr.com redlynr.com |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3029 | RedRobotRouges IA redrobotrouges.ca |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3030 | telago-paid-mcp-fav-pulse.vercel.app telago-paid-mcp-fav-pulse.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3031 | temporary-instant-tempest-4a1g1wu.vercel.app temporary-instant-tempest-4a1g1wu.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3032 | Ops Control HQ Bounty Check tkoqkknsezxavtxfywkm.supabase.co |
52.0 | live | 100% | $0.001 | 1 | 9 | $0.001 |
| 3033 | Email Verify Evidence tutevpsjeewjulryvvdo.supabase.co |
52.0 | live | 100% | $0.001 | 1 | 4 | $0.001 |
| 3034 | NAIF EU Web Intelligence v2202609421025522662.hotsrv.de |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3035 | Smart Money Daily Brief x402-report.quanyida.workers.dev |
52.0 | live | 100% | $0.001 | 1 | 2 | $0.001 |
| 3036 | srch.best x402.srch.best |
52.0 | live | 100% | $0.001 | 1 | 3 | $0.001 |
| 3037 | x402factory.ai x402factory.ai |
52.0 | live | 100% | $0.001 | 1 | 32 | $0.001 |
| 3038 | Life Advice x402lifeadvice.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3039 | Useless Fact x402uselessfacts.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3040 | xyzuniversityxyz.vercel.app xyzuniversityxyz.vercel.app |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3041 | MCP server (x402 data tools) anibalb.duckdns.org |
52.0 | live | 100% | $0.001 | 1 | 3 | $0.001 |
| 3042 | Exepal api.exepal.com |
52.0 | live | 100% | $0.001 | 1 | 1 | $0.001 |
| 3043 | ONE Engine one-search.one-engine.workers.dev |
52.0 | live | 100% | $0.0009 | 1 | 12 | $0.0009 |
| 3044 | burn-once-secret-vault.jannioura.workers.dev burn-once-secret-vault.jannioura.workers.dev |
52.0 | live | 100% | shared | 1 | 1 | $0.01 |
| 3045 | markdown-extractor.jannioura.workers.dev markdown-extractor.jannioura.workers.dev |
52.0 | live | 100% | shared | 1 | 1 | $0.01 |
| 3046 | spa-dom-to-md.jannioura.workers.dev spa-dom-to-md.jannioura.workers.dev |
52.0 | live | 100% | shared | 1 | 1 | $0.03 |
| 3047 | svg-bar-chart-renderer.jannioura.workers.dev svg-bar-chart-renderer.jannioura.workers.dev |
52.0 | live | 100% | shared | 1 | 1 | $0.015 |
| 3048 | wasm-geotiff-transcoder.jannioura.workers.dev wasm-geotiff-transcoder.jannioura.workers.dev |
52.0 | live | 100% | shared | 1 | 1 | $0.03 |
| 3049 | tools/weather sigtap-outreach-api.sigtap.workers.dev |
52.0 | live | 100% | $0.0005 | 1 | 12 | $0.0005 |
| 3050 | data.truefixr.com data.truefixr.com |
52.0 | live | 100% | $0.0002 | 1 | 2 | $0.0002 |
For agents: call
x402_service_search over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/x402_service_search {"query":"weather"} to get the best live endpoint with an example input. For sellers: claim your listing, add the badge, or get alerts when your API stops answering (x402_monitor_create, $5 for 30 days). JSON: /v1/observatory/providers.Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. Directories read 15 h ago. LogicNodes does not run these services or take a cut.