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.
128,156paid endpoints listed
4,176providers
3,649 / 4,176live at last check / checked
$331,457USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 1851 | SSL/TLS Certificate Check ssl.use.x402atlas.com |
55.4 | live | 100% | shared | 5 | 1 | $0.01 |
| 1852 | IP Geolocation Lookup geoip.bip-rep.com |
55.4 | live | 100% | shared | 5 | 1 | $0.005 |
| 1853 | Open Graph Image Generator og.bip-rep.com |
55.4 | live | 100% | shared | 5 | 1 | $0.01 |
| 1854 | seo.forgemesh.io seo.forgemesh.io |
55.4 | live | 100% | $0.055 | 5 | 3 | $0.005 |
| 1855 | Satellite Space API space.bip-rep.com |
55.4 | live | 100% | shared | 5 | 1 | $0.05 |
| 1856 | Tools API tools.bip-rep.com |
55.4 | live | 100% | shared | 5 | 1 | $0.01 |
| 1857 | x402-watchlist-batch x402-catalog-history.ai-business-surface.workers.dev |
55.4 | live | 100% | $0.052 | 5 | 41 | $0.001 |
| 1858 | Olive Marlin x402-catalogue.agent.amnt.io |
55.4 | live | 100% | $0.052 | 5 | 1 | $0.01 |
| 1859 | Sellat sellat.app |
55.3 | live | 100% | $0.93 | 2 | 2 | $0.01 |
| 1860 | US Site Selection agent-vending-production.up.railway.app |
55.3 | live | 100% | $0.888 | 2 | 13 | $0.001 |
| 1861 | x402.billionaireorder.com x402.billionaireorder.com |
55.3 | live | 100% | $0.50 | 3 | 14 | $0.01 |
| 1862 | Kakerapetit api.kakerapetit.dev |
55.3 | live | 100% | $0.214 | 4 | 11 | $0.002 |
| 1863 | DEBYKO api.debyko.com |
55.3 | live | 100% | $0.05 | 5 | 4 | $0.005 |
| 1864 | api.rafidsystem.com api.rafidsystem.com |
55.3 | live | 100% | $0.05 | 5 | 1 | $0.01 |
| 1865 | Frontera Signal fronterasignal.com |
55.3 | live | 100% | $0.05 | 5 | 14 | $0.01 |
| 1866 | Liquid State www.liquidstate.tech |
55.3 | live | 100% | $0.05 | 5 | 2 | $0.01 |
| 1867 | paddock.finance paddock.finance |
55.3 | live | 100% | $0.046 | 5 | 5 | $0.001 |
| 1868 | x402 Cartographer finder.marknetic.co.uk |
55.3 | live | 100% | $0.045 | 5 | 2 | $0.005 |
| 1869 | ParseAPI parseapi.info |
55.3 | live | 100% | $0.044 | 5 | 5 | $0.002 |
| 1870 | ads.forgemesh.io ads.forgemesh.io |
55.3 | live | 100% | $0.04 | 5 | 4 | $0.005 |
| 1871 | uk-company-check.fly.dev uk-company-check.fly.dev |
55.3 | live | 100% | $0.037 | 5 | 2 | $0.003 |
| 1872 | fittings fittings.sh |
55.3 | live | 100% | $0.036 | 5 | 7 | $0.003 |
| 1873 | Agent Mercantile api.agentmercantile.com |
55.3 | live | 100% | $0.035 | 5 | 11 | $0.005 |
| 1874 | Crypto Perp Funding & Sentiment perpsignals.use.x402atlas.com |
55.3 | live | 100% | shared | 5 | 3 | $0.005 |
| 1875 | x402.coinopai.com x402.coinopai.com |
55.3 | live | 100% | $0.035 | 5 | 13 | $0.005 |
| 1876 | Eckari api.eckari.com |
55.3 | live | 100% | $0.034 | 5 | 11 | $0.001 |
| 1877 | wren-guard Pro wren-guard-pro.wrenonbase.workers.dev |
55.3 | live | 100% | $0.032 | 5 | 1 | $0.01 |
| 1878 | Wren Token Facts wren-presign-check.wrenonbase.workers.dev |
55.3 | live | 100% | $0.032 | 5 | 2 | $0.01 |
| 1879 | Wren x402 Doctor wren-x402-doctor.wrenonbase.workers.dev |
55.3 | live | 100% | $0.032 | 5 | 4 | $0.001 |
| 1880 | AARN Web Read api.aarn.space |
55.3 | live | 100% | $0.03 | 5 | 2 | $0.002 |
| 1881 | JAW.id ENS Reverse Resolver api.justaname.id |
55.3 | live | 100% | $0.03 | 5 | 3 | $0.005 |
| 1882 | Quorumz api.quorumz.com |
55.3 | live | 100% | $0.03 | 5 | 6 | $0.005 |
| 1883 | bskts api.bskts.xyz |
55.3 | live | 100% | $0.03 | 5 | 2 | $0.005 |
| 1884 | mcp.blocksize.info mcp.blocksize.info |
55.3 | live | 100% | $0.027 | 5 | 4 | $0.002 |
| 1885 | oraclepost.higgsfield.app oraclepost.higgsfield.app |
55.3 | live | 100% | $0.027 | 5 | 4 | $0.001 |
| 1886 | italycheck.italycheck.workers.dev italycheck.italycheck.workers.dev |
55.3 | live | 100% | $0.025 | 5 | 1 | $0.005 |
| 1887 | edge.goldsky.com edge.goldsky.com |
55.3 | live | 100% | $0.025 | 5 | 10 | $0.005 |
| 1888 | agora-x402-production.up.railway.app agora-x402-production.up.railway.app |
55.3 | live | 100% | $0.024 | 5 | 1 | $0.004 |
| 1889 | agoraverify.com agoraverify.com |
55.3 | live | 100% | $0.024 | 5 | 2 | $0.004 |
| 1890 | base-intel-api.jakemaxsigal.workers.dev base-intel-api.jakemaxsigal.workers.dev |
55.3 | live | 100% | $0.02 | 5 | 3 | $0.002 |
| 1891 | apex-edge-coral.vercel.app apex-edge-coral.vercel.app |
55.2 | live | 100% | $0.461 | 3 | 2 | $0.002 |
| 1892 | api.nonsynthetic.net api.nonsynthetic.net |
55.2 | live | 100% | $0.461 | 3 | 6 | $0.002 |
| 1893 | geoprimitives api.geoprimitives.dev |
55.2 | live | 100% | $0.425 | 3 | 3 | $0.005 |
| 1894 | api.terradeed.co.uk api.terradeed.co.uk |
55.2 | live | 100% | $0.19 | 4 | 2 | $0.01 |
| 1895 | api.aurelianflo.com api.aurelianflo.com |
55.2 | live | 100% | $0.18 | 4 | 2 | $0.01 |
| 1896 | Lorg Check api.lorglabs.com |
55.2 | live | 100% | $0.18 | 4 | 2 | $0.01 |
| 1897 | auditor-x402.onrender.com auditor-x402.onrender.com |
55.2 | live | 100% | $0.174 | 4 | 17 | $0.002 |
| 1898 | d21 wiki_trends_pulse draconic21-x402-api.onrender.com |
55.2 | live | 100% | $0.019 | 5 | 42 | $0.001 |
| 1899 | Plainsight shop.netlobo.com |
55.2 | live | 100% | $0.018 | 5 | 12 | $0.001 |
| 1900 | x402 Preflight x402-preflight-grokbot.netlify.app |
55.2 | live | 100% | $0.018 | 5 | 2 | $0.002 |
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 19 h ago. LogicNodes does not run these services or take a cut.