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
$365,868USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 4101 | Wallet Sanctions Screen amber-maple-3b054208.tunnl.gg |
0.0 | down | 0% | $0.00 | 0 | 4 | $0.005 |
| 4102 | lilpayment api.21.cash |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4103 | api.agentmetric.app api.agentmetric.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.09 |
| 4104 | AIOptiTech Prompt Library prompt api.aioptitech.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.05 |
| 4105 | api.arcgate.dev api.arcgate.dev |
0.0 | down | 0% | $0.00 | 0 | 13 | $0.005 |
| 4106 | api.barvis.io api.barvis.io |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.10 |
| 4107 | api.clawinspector.xyz api.clawinspector.xyz |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.05 |
| 4108 | api.dexl.io api.dexl.io |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4109 | api.ezannuity.org api.ezannuity.org |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.02 |
| 4110 | api.freaks.one api.freaks.one |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.05 |
| 4111 | api.httpayer.com api.httpayer.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.00515 |
| 4112 | MACH Base api.mach.gallery |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.005 |
| 4113 | api.shippingrates.org api.shippingrates.org |
0.0 | down | 0% | $0.00 | 0 | 6 | $0.03 |
| 4114 | SolSentry api.solsentry.app |
0.0 | down | 0% | $0.00 | 0 | 7 | $0.004 |
| 4115 | Textus api.textus.dev |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.49 |
| 4116 | api.tweetx402.com api.tweetx402.com |
0.0 | down | 0% | $0.00 | 0 | 12 | $0.001 |
| 4117 | Urban Game Theory api.urbangametheory.xyz |
0.0 | down | 0% | $0.00 | 0 | 1 | – |
| 4118 | QUIZ ABOUT ANYTHING api.useatelier.ai |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.011 |
| 4119 | api.vinoandviews.online api.vinoandviews.online |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.15 |
| 4120 | api.willowbirdie.com api.willowbirdie.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.05 |
| 4121 | api.x402cloud.space api.x402cloud.space |
0.0 | down | 0% | $0.00 | 0 | 5 | $0.000199 |
| 4122 | apidashboard.cryptohunt.ai apidashboard.cryptohunt.ai |
0.0 | down | 0% | $0.00 | 0 | 16 | $0.10 |
| 4123 | apipapai.vercel.app apipapai.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $1.00 |
| 4124 | app.ox212.com app.ox212.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4125 | app.spheron.ai app.spheron.ai |
0.0 | down | 0% | $0.00 | 0 | 1 | $1.00 |
| 4126 | approval-revoke-mcp.mtree.workers.dev approval-revoke-mcp.mtree.workers.dev |
0.0 | down | 0% | shared | 0 | 1 | $0.05 |
| 4127 | arxiv-mcp.mtree.workers.dev arxiv-mcp.mtree.workers.dev |
0.0 | down | 0% | shared | 0 | 1 | $0.04 |
| 4128 | Automaton Paid API automaton-paid.sharkquant.ai |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4129 | Automaton Paid API automaton-paid2.sharkquant.ai |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4130 | aviationapis.com aviationapis.com |
0.0 | down | 0% | $0.00 | 0 | 14 | $0.01 |
| 4131 | azimuth.day azimuth.day |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4132 | Base Pulse base-pulse-1021990235790.us-central1.run.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.01 |
| 4133 | base-sentinel-production.up.railway.app base-sentinel-production.up.railway.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4134 | basketprice.themonexus.com basketprice.themonexus.com |
0.0 | down | 0% | shared | 0 | 3 | $0.001 |
| 4135 | Batcave Agent Services batcave-x402-gateway.darriel9.workers.dev |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.003 |
| 4136 | bazaaro-agent.vercel.app bazaaro-agent.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4137 | beta.vaultlayer.xyz beta.vaultlayer.xyz |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.50 |
| 4138 | blockrun-sol-staging-vbsbhh7lea-uc.a.run.app blockrun-sol-staging-vbsbhh7lea-uc.a.run.app |
0.0 | down | 0% | shared | 0 | 1 | $0.003 |
| 4139 | blockrun-sol-vbsbhh7lea-an.a.run.app blockrun-sol-vbsbhh7lea-an.a.run.app |
0.0 | down | 0% | shared | 0 | 1 | $0.003 |
| 4140 | built-with-productos-voo8.vercel.app built-with-productos-voo8.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4141 | c2pa.mppfy.com c2pa.mppfy.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4142 | cannastack.0x402.sh cannastack.0x402.sh |
0.0 | down | 0% | $0.00 | 0 | 4 | $0.02 |
| 4143 | chipscan.steveyuowoo.workers.dev chipscan.steveyuowoo.workers.dev |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.05 |
| 4144 | city-campaign-production.up.railway.app city-campaign-production.up.railway.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.10 |
| 4145 | Clarity Property Investments claritypropertyinvestments.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.10 |
| 4146 | Claude Solana Microcalls claude-agentcash-solana-pilot.contact-globalsell.workers.dev |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.028404 |
| 4147 | clearlot-hardware-hq.vercel.app clearlot-hardware-hq.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.04 |
| 4148 | cloudmaxi0x.com cloudmaxi0x.com |
0.0 | down | 0% | $0.00 | 0 | 14 | $0.001 |
| 4149 | clrzd.xyz clrzd.xyz |
0.0 | down | 0% | $0.00 | 0 | 1 | $1.60 |
| 4150 | Coinlight coinlight-app.vercel.app |
0.0 | down | 0% | shared | 0 | 31 | $0.001 |
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 12 h ago. LogicNodes does not run these services or take a cut.