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.
126,094paid endpoints listed
4,142providers
1,938 / 2,195live at last check / checked
$332,829USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 701 | houjin.agentic-jp.com houjin.agentic-jp.com |
57.6 | live | 100% | shared | 12 | 3 | $0.001 |
| 702 | md.fastdb.in md.fastdb.in |
57.6 | live | 100% | $0.06 | 12 | 7 | $0.001 |
| 703 | Agent Payload Tools api.agent-payload-tools.workers.dev |
57.6 | live | 100% | $0.047 | 12 | 8 | $0.001 |
| 704 | a2apay Task Memory Resume a2apay.io |
57.5 | live | 100% | $4.34 | 1 | 3 | $0.014 |
| 705 | domain-intel api.firstmention.uk |
57.5 | live | 100% | $0.56 | 7 | 28 | $0.01 |
| 706 | Agent Desk API: Event Facts deskfeed.dev |
57.5 | live | 100% | $0.10 | 11 | 4 | $0.005 |
| 707 | booaip.vercel.app booaip.vercel.app |
57.5 | live | 100% | $0.095 | 11 | 4 | $0.005 |
| 708 | SolEnrich api.solenrich.com |
57.5 | live | 100% | $0.087 | 11 | 50 | $0.001 |
| 709 | CueFrame api.cueframe.ai |
57.4 | live | 100% | $1.34 | 4 | 3 | $0.01 |
| 710 | kair-os.trade kair-os.trade |
57.4 | live | 100% | $0.137 | 10 | 9 | $0.003 |
| 711 | Delx Token Echo 1 api.delx.ai |
57.4 | live | 100% | $0.081 | 11 | 1011 | $0.001 |
| 712 | offercheck offercheck.offercheck.workers.dev |
57.4 | live | 100% | $0.081 | 11 | 5 | $0.001 |
| 713 | api.onhub.ai api.onhub.ai |
57.4 | live | 100% | $0.079 | 11 | 3 | $0.002 |
| 714 | agent-tools-7936.onrender.com agent-tools-7936.onrender.com |
57.4 | live | 100% | $0.068 | 11 | 8 | $0.001 |
| 715 | defi-signals.org defi-signals.org |
57.4 | live | 100% | $0.063 | 11 | 2 | $0.002 |
| 716 | notary.forgemesh.io notary.forgemesh.io |
57.4 | live | 100% | $0.061 | 11 | 2 | $0.001 |
| 717 | x402 Endpoint Probe gogeta2-u35175.vm.elestio.app |
57.4 | live | 100% | $0.057 | 11 | 33 | $0.001 |
| 718 | apexrunner.ai apexrunner.ai |
57.3 | live | 100% | $0.483 | 7 | 43 | $0.007 |
| 719 | ip402.xyz ip402.xyz |
57.3 | live | 100% | $0.48 | 7 | 1 | $0.01 |
| 720 | Laminarity Relay api.laminarity.uk |
57.3 | live | 100% | $0.043 | 11 | 1 | $0.001 |
| 721 | chess402.vercel.app chess402.vercel.app |
57.3 | live | 100% | $0.043 | 11 | 4 | $0.001 |
| 722 | CRA AGENT data api.cra-agent.tech |
57.3 | live | 100% | $0.041 | 11 | 21 | $0.0005 |
| 723 | imagegen.coinopai.com imagegen.coinopai.com |
57.3 | live | 100% | $0.041 | 11 | 6 | $0.005 |
| 724 | agents.thirdmade.net agents.thirdmade.net |
57.3 | live | 100% | $0.04 | 11 | 1 | $0.01 |
| 725 | Kronos PDF to Markdown api.nexismvp.com |
57.3 | live | 100% | $0.025 | 11 | 8 | $0.001 |
| 726 | RESET Verifica api.resetparatodos.com |
57.2 | live | 100% | $2.43 | 2 | 11 | $0.03 |
| 727 | Agentalog agentalog.com |
57.2 | live | 100% | shared | 6 | 2 | $0.01 |
| 728 | CommsHarbor commsharbor.com |
57.2 | live | 100% | shared | 6 | 2 | $0.01 |
| 729 | HookPulse hookpulse.net |
57.2 | live | 100% | shared | 6 | 3 | $0.01 |
| 730 | OKF Index okfindex.com |
57.2 | live | 100% | shared | 6 | 2 | $0.01 |
| 731 | Affiliate.com affiliate.pay.zeroclick.io |
57.2 | live | 100% | $0.18 | 9 | 1 | $0.02 |
| 732 | contractlens-api.appin60.com contractlens-api.appin60.com |
57.2 | live | 100% | shared | 10 | 6 | $0.001 |
| 733 | mailferret.appin60.com mailferret.appin60.com |
57.2 | live | 100% | shared | 10 | 4 | $0.003 |
| 734 | Brazil Data API brasil-dados-api.onrender.com |
57.2 | live | 100% | $0.083 | 10 | 4 | $0.002 |
| 735 | CF Enforcement Check cf-enforcement-check.cf-exclusion-check.workers.dev |
57.1 | live | 100% | shared | 3 | 1 | $0.05 |
| 736 | CF Enforcement Check enforcement.cfsoft.us |
57.1 | live | 100% | shared | 3 | 2 | $0.05 |
| 737 | CF Exclusion Check exclusions.cfsoft.us |
57.1 | live | 100% | shared | 3 | 2 | $0.05 |
| 738 | Xynaptic security-price api.xynaptic.io |
57.1 | live | 100% | $0.26 | 8 | 133 | $0.01 |
| 739 | JMT Web Search jmt-x402-proxy.jmthomasofficial.workers.dev |
57.1 | live | 100% | $0.156 | 9 | 6 | $0.002 |
| 740 | AxonGate api.axongate.one |
57.1 | live | 100% | $0.146 | 9 | 9 | $0.002 |
| 741 | RDAP Domain Registration dns.use.x402atlas.com |
57.1 | live | 100% | shared | 9 | 7 | $0.005 |
| 742 | Live Open Data India & World api.jexxa.org |
57.1 | live | 100% | $0.059 | 10 | 1 | $0.005 |
| 743 | ApiToll Multi-Chain EVM Gas evm-gas.apitoll.cloud |
57.1 | live | 100% | $0.055 | 10 | 1 | $0.001 |
| 744 | ApiToll Base Gas Oracle gas.apitoll.cloud |
57.1 | live | 100% | $0.055 | 10 | 1 | $0.001 |
| 745 | ApiToll Crypto News news.apitoll.cloud |
57.1 | live | 100% | $0.055 | 10 | 1 | $0.001 |
| 746 | Phone Validator keyronne.com |
57.1 | live | 100% | $0.052 | 10 | 12 | $0.001 |
| 747 | Yield.xyz MCP mcp.yield.xyz |
57.1 | live | 100% | $0.041 | 10 | 12 | $0.001 |
| 748 | atkvn.com atkvn.com |
57.1 | live | 100% | $0.038 | 10 | 8 | $0.001 |
| 749 | Ausca Agent Inbox ausca.com |
57.0 | live | 100% | $3.60 | 1 | 6 | $0.05 |
| 750 | Business Frameworks business-frameworks.matryoshka-paradigms.workers.dev |
57.0 | live | 100% | $1.48 | 3 | 62 | $0.02 |
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 22 h ago. LogicNodes does not run these services or take a cut.