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
1,927 / 2,182live at last check / checked
$294,522USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 1151 | Text Prefix Classifier digitalworkerapi.com |
54.0 | live | 100% | $0.003 | 3 | 2 | $0.001 |
| 1152 | Agent Transaction Trust json-repair-api-9ybv.onrender.com |
54.0 | live | 100% | $0.003 | 3 | 4 | $0.001 |
| 1153 | Obol obol.danieldutoit.net |
54.0 | live | 100% | $0.003 | 3 | 1 | $0.001 |
| 1154 | Atinamos JSON Validate / Repair agent.atinamos.co.uk |
53.9 | live | 100% | $0.255 | 2 | 2 | $0.005 |
| 1155 | Beggar Bot beggar-bot-demand.beggarbot.workers.dev |
53.9 | live | 100% | $0.24 | 2 | 10 | $0.02 |
| 1156 | Agent Embassy aemb.pro |
53.8 | live | 100% | $0.75 | 1 | 1 | $0.05 |
| 1157 | DYOE Website Audit agents.dyoeway.org |
53.8 | live | 100% | $0.72 | 1 | 21 | $0.01 |
| 1158 | Kings Key AI Evaluation API kings-key-eval.onrender.com |
53.8 | live | 100% | $0.20 | 2 | 1 | $0.05 |
| 1159 | api.stakedbots.com api.stakedbots.com |
53.7 | live | 100% | $0.19 | 2 | 3 | $0.02 |
| 1160 | agentic-diagrams-production.up.railway.app agentic-diagrams-production.up.railway.app |
53.7 | live | 100% | shared | 2 | 1 | $0.10 |
| 1161 | calendar-api-production-33a1.up.railway.app calendar-api-production-33a1.up.railway.app |
53.7 | live | 100% | shared | 2 | 1 | $0.02 |
| 1162 | Blockpin check.blockpin.dev |
53.7 | live | 100% | $0.18 | 2 | 7 | $0.01 |
| 1163 | Blockpin claus-check.joshlouisgoodman.workers.dev |
53.7 | live | 100% | $0.18 | 2 | 7 | $0.01 |
| 1164 | contract-api-production-c176.up.railway.app contract-api-production-c176.up.railway.app |
53.7 | live | 100% | shared | 2 | 1 | $0.02 |
| 1165 | mocks-api-production.up.railway.app mocks-api-production.up.railway.app |
53.7 | live | 100% | shared | 2 | 1 | $0.05 |
| 1166 | deltasignal-mcp-gcp-canary-mhaufviwaq-uc.a.run.app deltasignal-mcp-gcp-canary-mhaufviwaq-uc.a.run.app |
53.7 | live | 100% | $0.17 | 2 | 3 | $0.06 |
| 1167 | api.itsgloria.ai api.itsgloria.ai |
53.7 | live | 100% | $0.16 | 2 | 5 | $0.03 |
| 1168 | Polymarket Intelligence API api.polym.uk |
53.6 | live | 100% | $0.15 | 2 | 2 | $0.05 |
| 1169 | x402 Intelligence API api.x402intel.uk |
53.6 | live | 100% | $0.15 | 2 | 1 | $0.05 |
| 1170 | donate.0000402.xyz donate.0000402.xyz |
53.6 | live | 100% | shared | 2 | 1 | $0.01 |
| 1171 | leaderboard.0000402.xyz leaderboard.0000402.xyz |
53.6 | live | 100% | shared | 2 | 1 | $0.01 |
| 1172 | G-Forge Sort JSON Records api.getretold.com |
53.6 | live | 100% | $0.121 | 2 | 12 | $0.01 |
| 1173 | G-Forge Agent Kit g-forge-agent-kit.vercel.app |
53.6 | live | 100% | $0.121 | 2 | 1 | $0.001 |
| 1174 | api.getplexa.com api.getplexa.com |
53.5 | live | 100% | $0.12 | 2 | 4 | $0.02 |
| 1175 | Qonoro URL Health Check api.qonoro.ai |
53.5 | live | 100% | $0.12 | 2 | 21 | $0.005 |
| 1176 | BizIntel API bizintel-api.hahavoid0.workers.dev |
53.5 | live | 100% | $0.12 | 2 | 9 | $0.01 |
| 1177 | CodePulse Agentic API codepulse-api.hahavoid0.workers.dev |
53.5 | live | 100% | $0.12 | 2 | 6 | $0.01 |
| 1178 | convrgent.ai convrgent.ai |
53.5 | live | 100% | $0.11 | 2 | 2 | $0.01 |
| 1179 | mizan-bazar.higgsfield.app mizan-bazar.higgsfield.app |
53.5 | live | 100% | $0.11 | 2 | 2 | $0.01 |
| 1180 | Wingman Agent Gateway agent.wingmanprotocol.com |
53.5 | live | 100% | $0.102 | 2 | 3 | $0.002 |
| 1181 | 3-140-99-145.sslip.io 3-140-99-145.sslip.io |
53.5 | live | 100% | $0.10 | 2 | 1 | $0.05 |
| 1182 | a402test.pages.dev a402test.pages.dev |
53.5 | live | 100% | $0.10 | 2 | 1 | $0.05 |
| 1183 | aurelius-node-01.onrender.com aurelius-node-01.onrender.com |
53.5 | live | 100% | $0.10 | 2 | 1 | $0.05 |
| 1184 | aurelius-node-02-socal.onrender.com aurelius-node-02-socal.onrender.com |
53.5 | live | 100% | $0.10 | 2 | 1 | $0.05 |
| 1185 | Korea Business Verify (KBV) kbv-server-f7vfitmlkq-du.a.run.app |
53.5 | live | 100% | $0.09 | 2 | 4 | $0.02 |
| 1186 | api.cryptoetfsentinel.com api.cryptoetfsentinel.com |
53.4 | live | 100% | $0.08 | 2 | 22 | $0.03 |
| 1187 | x402ai api.x402ai.dev |
53.4 | live | 100% | $0.08 | 2 | 3 | $0.01 |
| 1188 | econdash.org econdash.org |
53.4 | live | 100% | $0.08 | 2 | 5 | $0.02 |
| 1189 | MentionForge mentionforge.mentionforge.workers.dev |
53.4 | live | 100% | $0.08 | 2 | 2 | $0.02 |
| 1190 | fresh-feeds fresh-feeds.foomworks.workers.dev |
53.4 | live | 100% | $0.07 | 2 | 2 | $0.02 |
| 1191 | agentspec-one.vercel.app agentspec-one.vercel.app |
53.4 | live | 100% | $0.06 | 2 | 1 | $0.02 |
| 1192 | Anansi Model Advisor anansidata.xyz |
53.4 | live | 100% | $0.06 | 2 | 5 | $0.01 |
| 1193 | api.creativeforesight.io api.creativeforesight.io |
53.4 | live | 100% | $0.06 | 2 | 9 | $0.01 |
| 1194 | api.lastlookdata.com api.lastlookdata.com |
53.4 | live | 100% | $0.06 | 2 | 4 | $0.01 |
| 1195 | CoinBucha coinbucha.com |
53.4 | live | 100% | $0.06 | 2 | 3 | $0.01 |
| 1196 | depscout.vercel.app depscout.vercel.app |
53.4 | live | 100% | $0.06 | 2 | 1 | $0.02 |
| 1197 | FilingDelta filingdelta.xyz |
53.4 | live | 100% | $0.06 | 2 | 8 | $0.01 |
| 1198 | Trust Your Coin agent.trustyourcoin.com |
53.3 | live | 100% | $0.50 | 1 | 1 | $0.50 |
| 1199 | ComplianceCheck compliancecheck-x402.fly.dev |
53.3 | live | 100% | $0.50 | 1 | 1 | $0.50 |
| 1200 | DeltaMachine deltamachine-v2-preview.vercel.app |
53.3 | live | 100% | $0.50 | 1 | 1 | $0.50 |
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 6 h ago. LogicNodes does not run these services or take a cut.