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.
120,425paid endpoints listed
4,351providers
3,578 / 4,032live at last check / checked
$363,577USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 4001 | DeAI Artifact Gateway research.zaiba.cloud |
2.1 | down | 0% | $0.03 | 1 | 1 | $0.01 |
| 4002 | Apiguru Amazon Data API agent.apiguru.app |
2.1 | down | 0% | $0.027 | 1 | 10 | $0.0024 |
| 4003 | DiffiCat app.difficat.com |
2.1 | down | 0% | $0.02 | 1 | 3 | $0.02 |
| 4004 | Crawl Pre-Flight crawl-preflight.postnov01.workers.dev |
2.1 | down | 0% | $0.02 | 1 | 1 | $0.02 |
| 4005 | macro-pulse-x402.onrender.com macro-pulse-x402.onrender.com |
2.1 | down | 0% | $0.02 | 1 | 1 | $0.02 |
| 4006 | x402.strikerobot.ai x402.strikerobot.ai |
2.1 | down | 0% | $0.02 | 1 | 4 | $0.01 |
| 4007 | bounty-radar.orbit-builder.workers.dev bounty-radar.orbit-builder.workers.dev |
2.1 | pending | – | shared | 1 | 1 | $0.01 |
| 4008 | bruk-agent-api.fly.dev bruk-agent-api.fly.dev |
2.0 | down | 0% | $0.011 | 1 | 8 | $0.001 |
| 4009 | AGMM agmm.co.uk |
2.0 | down | 0% | $0.01 | 1 | 8 | $0.01 |
| 4010 | api.hypercli.com api.hypercli.com |
2.0 | down | 0% | $0.01 | 1 | 3 | $0.01 |
| 4011 | Blockpin check.blockpin.dev |
2.0 | down | 0% | $0.01 | 1 | 7 | $0.01 |
| 4012 | Blockpin claus-check.joshlouisgoodman.workers.dev |
2.0 | down | 0% | $0.01 | 1 | 7 | $0.01 |
| 4013 | codenut.ai codenut.ai |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4014 | Digital Cupcake Stand cupcake.digital-stand.pt |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.10 |
| 4015 | edge.innovalyxx.com edge.innovalyxx.com |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4016 | Agent Output Verifier fastapi-service-5ag4.onrender.com |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.02 |
| 4017 | foretagskoll.lolalex64.workers.dev foretagskoll.lolalex64.workers.dev |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4018 | how.is how.is |
2.0 | down | 0% | $0.01 | 1 | 23 | $0.005 |
| 4019 | Reformed Connect reformedconnect.com |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4020 | robinhood-radar-dsk86hfkw-lightfarm.vercel.app robinhood-radar-dsk86hfkw-lightfarm.vercel.app |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4021 | robinhood-radar-nu4yz7wqv-lightfarm.vercel.app robinhood-radar-nu4yz7wqv-lightfarm.vercel.app |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.005 |
| 4022 | Agent Output Verifier score.sarnai.dev |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4023 | signalsfeed.com signalsfeed.com |
2.0 | down | 0% | $0.01 | 1 | 3 | $0.01 |
| 4024 | SpawnXchange spawnxchange.com |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4025 | StableStudio stable-studio-git-mason-migrate-off-prices-map-merit-systems.vercel.app |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4026 | Agent Output Verifier verify.sarnai.dev |
2.0 | down | 0% | $0.01 | 1 | 2 | $0.02 |
| 4027 | Nob7e Botanical Intelligence web-production-7442b.up.railway.app |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.02 |
| 4028 | ZadenWorks Read x402-zadenworks.zaden-gaming.workers.dev |
2.0 | down | 0% | $0.01 | 1 | 8 | $0.01 |
| 4029 | Adalia Undertow x402.adalia.ee |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4030 | x402.lucyos.ai x402.lucyos.ai |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4031 | Voidpay Marketplace x402.voidly.ai |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4032 | The Wild the-wild-x402.mhoydich.workers.dev |
2.0 | down | 0% | $0.01 | 1 | 1 | $0.01 |
| 4033 | apexscout.ai apexscout.ai |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4034 | NEXUS Agent Utilities x402.nexusword.it |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4035 | AgentFilings api.agentfilings.com |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4036 | Speech is Cheap api.speechischeap.com |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4037 | Santa Fe & ABQ Kids Programs api.thekassamgroup.com |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4038 | FLINTTECH flinttech-x402.f1intt3ch.workers.dev |
2.0 | pending | – | $0.01 | 1 | 1 | $0.05 |
| 4039 | Last Price last-price.ai |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4040 | WildRun Records records.wildrunai.com |
2.0 | pending | – | $0.01 | 1 | 1 | $0.01 |
| 4041 | Atinamos JSON Validate / Repair agent.atinamos.co.uk |
2.0 | down | 0% | $0.005 | 1 | 2 | $0.005 |
| 4042 | Limitguard api.limitguard.ai |
2.0 | down | 0% | $0.005 | 1 | 18 | $0.005 |
| 4043 | BC Childcare Register bcchildcare.getregisters.com |
2.0 | down | 0% | $0.005 | 1 | 2 | $0.005 |
| 4044 | agent-api.degov.ai agent-api.degov.ai |
2.0 | pending | – | $0.005 | 1 | 1 | $0.005 |
| 4045 | china-trends-x402.onrender.com china-trends-x402.onrender.com |
2.0 | pending | – | $0.005 | 1 | 1 | $0.005 |
| 4046 | Crypto Data API 194-28-85-99.sslip.io |
2.0 | pending | – | $0.005 | 1 | 8 | $0.005 |
| 4047 | Machine Shop api.pay-forge.online |
2.0 | down | 0% | $0.004 | 1 | 27 | $0.004 |
| 4048 | IBANforge api.ibanforge.com |
2.0 | down | 0% | $0.003 | 1 | 2 | $0.003 |
| 4049 | marketplaceforaiagents.com marketplaceforaiagents.com |
2.0 | down | 0% | $0.003 | 1 | 2 | $0.003 |
| 4050 | SEC 8-K Material Events x402-8k-worker.stackstats.workers.dev |
2.0 | down | 0% | $0.003 | 1 | 1 | $0.01 |
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 10 h ago. LogicNodes does not run these services or take a cut.