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
$334,662USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 751 | atkvn.com atkvn.com |
57.1 | live | 100% | $0.038 | 10 | 8 | $0.001 |
| 752 | Ausca Agent Inbox ausca.com |
57.0 | live | 100% | $3.60 | 1 | 6 | $0.05 |
| 753 | Business Frameworks business-frameworks.matryoshka-paradigms.workers.dev |
57.0 | live | 100% | $1.48 | 3 | 62 | $0.02 |
| 754 | Maxwell x402 api.maxwellinternational.ai |
57.0 | live | 100% | $0.201 | 8 | 14 | $0.002 |
| 755 | agent-briefs.walletstarter.workers.dev agent-briefs.walletstarter.workers.dev |
57.0 | live | 100% | $0.20 | 8 | 6 | $0.01 |
| 756 | AgentForge agentforge-taupe.vercel.app |
57.0 | live | 100% | $0.026 | 10 | 19 | $0.001 |
| 757 | clearcut-production-bcc0.up.railway.app clearcut-production-bcc0.up.railway.app |
57.0 | live | 100% | shared | 10 | 1 | $0.001 |
| 758 | clearcut.clawca.sh clearcut.clawca.sh |
57.0 | live | 100% | shared | 10 | 1 | $0.001 |
| 759 | Nimbus nimbus.clawca.sh |
57.0 | live | 100% | shared | 10 | 2 | $0.001 |
| 760 | Postcode Context api.postcodecontext.uk |
56.9 | live | 100% | $1.43 | 3 | 4 | $0.005 |
| 761 | MimirAPI mimirapi.com |
56.9 | live | 100% | $1.02 | 4 | 10 | $0.001 |
| 762 | MysticAPI mysticapi.com |
56.9 | live | 100% | $1.02 | 4 | 1 | $0.01 |
| 763 | api.stacktr.ee api.stacktr.ee |
56.8 | live | 100% | $2.06 | 2 | 2 | $0.50 |
| 764 | Crypto Data & Market Analysis crypto-asistent.com |
56.8 | live | 100% | $2.04 | 2 | 19 | $0.04 |
| 765 | x402 Identity Hub api.x402id.dev |
56.8 | live | 100% | $2.00 | 2 | 1 | $0.001 |
| 766 | Linked Panda api.linkedpanda.com |
56.8 | live | 100% | $0.66 | 5 | 9 | $0.01 |
| 767 | api.zerion.io api.zerion.io |
56.8 | live | 100% | $0.63 | 5 | 17 | $0.01 |
| 768 | auditor-x402.onrender.com auditor-x402.onrender.com |
56.8 | live | 100% | $0.445 | 6 | 17 | $0.002 |
| 769 | agent-kg.ai agent-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 770 | agentic-radar.ai agentic-radar.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 771 | agentic-trades.ai agentic-trades.ai |
56.8 | live | 100% | shared | 7 | 2 | $0.01 |
| 772 | agentic-x402.ai agentic-x402.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 773 | allooloo.io allooloo.io |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 774 | au-cm-kg.ai au-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 775 | ca-cm-kg.ai ca-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 776 | ch-cm-kg.ai ch-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 777 | de-cm-kg.ai de-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 778 | familyofficeknowledgegraph.ai familyofficeknowledgegraph.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 779 | fr-cm-kg.ai fr-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 780 | gsc-x402.ai gsc-x402.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 781 | hk-cm-kg.ai hk-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 782 | jp-cm-kg.ai jp-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 783 | kr-cm-kg.ai kr-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 784 | kyp-model.ai kyp-model.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 785 | nl-cm-kg.ai nl-cm-kg.ai |
56.8 | live | 100% | shared | 7 | 1 | $0.01 |
| 786 | Web Page to Markdown api.stablecoingateways.com |
56.8 | live | 100% | $0.056 | 9 | 14 | $0.001 |
| 787 | Build Scotts Bluff Agent API buildscottsbluff.com |
56.8 | live | 100% | $0.053378 | 9 | 2 | $0.01 |
| 788 | magent api.magentlab.com |
56.8 | live | 100% | $0.05 | 9 | 2 | $0.005 |
| 789 | Go Bag gobagesim.com |
56.7 | live | 100% | $1.98 | 2 | 1 | $0.99 |
| 790 | fee_estimate chainsscope.duckdns.org |
56.7 | live | 100% | $0.22 | 7 | 2 | $0.01 |
| 791 | series concordancehq.duckdns.org |
56.7 | live | 100% | $0.22 | 7 | 4 | $0.01 |
| 792 | ChainQuery Bitcoin Intelligence intel.chainquery.com |
56.7 | live | 100% | $0.112309 | 8 | 5 | $0.005 |
| 793 | Per-Coin Positioning Brief api.eucompliance.tools |
56.7 | live | 100% | $0.02 | 9 | 21 | $0.001 |
| 794 | AestheticData api.aestheticdata.io |
56.7 | live | 100% | $0.017 | 9 | 3 | $0.001 |
| 795 | heb-utils-x402.hebutils-api.workers.dev heb-utils-x402.hebutils-api.workers.dev |
56.7 | live | 100% | $0.013 | 9 | 17 | $0.001 |
| 796 | agentkit-x402-buy.netlify.app agentkit-x402-buy.netlify.app |
56.7 | live | 100% | $0.009 | 9 | 1 | $0.001 |
| 797 | PrepLayer.ai api.maximusmediahouse.com |
56.6 | live | 100% | $0.198 | 7 | 13 | $0.002 |
| 798 | acproblems.info acproblems.info |
56.6 | live | 100% | shared | 7 | 1 | $0.01 |
| 799 | Pharos Atlas billing.pharosatlas.com |
56.6 | live | 100% | shared | 7 | 1 | $0.01 |
| 800 | Pharos Atlas buildingtint.info |
56.6 | live | 100% | shared | 7 | 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 23 h ago. LogicNodes does not run these services or take a cut.