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.
127,447paid endpoints listed
4,351providers
3,601 / 4,084live at last check / checked
$304,580USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 2701 | api.forum-labs.com api.forum-labs.com |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2702 | api.getplexa.com api.getplexa.com |
52.1 | live | 100% | $0.02 | 1 | 4 | $0.02 |
| 2703 | api.paylyte.ai api.paylyte.ai |
52.1 | live | 100% | $0.02 | 1 | 4 | $0.02 |
| 2704 | Permit Scouter api.permitscouter.com |
52.1 | live | 100% | $0.02 | 1 | 4 | $0.01 |
| 2705 | Proofable api.proofable.me |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.01 |
| 2706 | api.stakedbots.com api.stakedbots.com |
52.1 | live | 100% | $0.02 | 1 | 3 | $0.02 |
| 2707 | api.sys84.org api.sys84.org |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2708 | TruthPal api.thetruthpal.com |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2709 | assay.cascadiantech.com assay.cascadiantech.com |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2710 | Apify Actor Preflight audit-tools.ai |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2711 | manifest-audit audit.152-53-82-29.sslip.io |
52.1 | live | 100% | $0.02 | 1 | 6 | $0.005 |
| 2712 | Instant Microcopy Audit automaton-microcopy-audit.assistance-telegram-relay.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2713 | SAgent buavethsjahoodbeqhay.supabase.co |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2714 | calendar-api-production-33a1.up.railway.app calendar-api-production-33a1.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.02 |
| 2715 | CF Enforcement Check cf-enforcement-check.cf-exclusion-check.workers.dev |
52.1 | live | 100% | shared | 1 | 1 | $0.05 |
| 2716 | rugcheck cf-rugcheck.odemakindeezekiel5.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2717 | CHAPPY Japan Address Preflight chappy-japan-address-preflight.pre23964wb.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2718 | contract-api-production-c176.up.railway.app contract-api-production-c176.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.02 |
| 2719 | Ax3lflores data-cleaner.agent.amnt.io |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2720 | Bitcoin Whale-News Dataset diamond.btc-intel.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 8 | $0.02 |
| 2721 | Price Watcher API e-commerce-price-monitoring-production.up.railway.app |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2722 | endpoint-intelligence-edge.ldbertoldi.workers.dev endpoint-intelligence-edge.ldbertoldi.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2723 | CF Enforcement Check enforcement.cfsoft.us |
52.1 | live | 100% | shared | 1 | 2 | $0.05 |
| 2724 | CF Exclusion Check exclusions.cfsoft.us |
52.1 | live | 100% | shared | 1 | 2 | $0.05 |
| 2725 | gate.brix-bee.workers.dev gate.brix-bee.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2726 | Korea Business Verify (KBV) kbv-server-f7vfitmlkq-du.a.run.app |
52.1 | live | 100% | $0.02 | 1 | 4 | $0.02 |
| 2727 | mocks-api-production.up.railway.app mocks-api-production.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.05 |
| 2728 | nostrpulse.xyz nostrpulse.xyz |
52.1 | live | 100% | $0.02 | 1 | 2 | $0.02 |
| 2729 | numberintel.dev numberintel.dev |
52.1 | live | 100% | $0.02 | 1 | 6 | $0.02 |
| 2730 | oratio-api-production.up.railway.app oratio-api-production.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.05 |
| 2731 | CF Package Check packages.cfsoft.us |
52.1 | live | 100% | shared | 1 | 2 | $0.02 |
| 2732 | pagecheck-api-production.up.railway.app pagecheck-api-production.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.05 |
| 2733 | paylyte.ai paylyte.ai |
52.1 | live | 100% | $0.02 | 1 | 4 | $0.02 |
| 2734 | qr-api-production-7adc.up.railway.app qr-api-production-7adc.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.02 |
| 2735 | reader-api-production-bde1.up.railway.app reader-api-production-bde1.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.02 |
| 2736 | reefjaco reefjaco.loujaxking1.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2737 | Region Fetch regionfetch.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2738 | Ax3lflores rescue.agent.amnt.io |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.03 |
| 2739 | Sellat sellat.app |
52.1 | live | 100% | $0.02 | 1 | 2 | $0.01 |
| 2740 | sheets-api-production-636c.up.railway.app sheets-api-production-636c.up.railway.app |
52.1 | live | 100% | shared | 1 | 1 | $0.05 |
| 2741 | Solana DeFi Intelligence soldefi.thomenz.me |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2742 | TradeAPEX related concepts tradeapex.ai |
52.1 | live | 100% | $0.02 | 1 | 2 | $0.02 |
| 2743 | TrapCheck trapcheck.dev |
52.1 | live | 100% | $0.02 | 1 | 2 | $0.02 |
| 2744 | Stratalize www.stratalize.com |
52.1 | live | 100% | $0.02 | 1 | 2 | $0.02 |
| 2745 | x402-api-24223879872.us-east1.run.app x402-api-24223879872.us-east1.run.app |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2746 | PreFlight Checker x402-api-catalog.onrender.com |
52.1 | live | 100% | $0.02 | 1 | 2 | $0.02 |
| 2747 | x402-api.aubr.ai x402-api.aubr.ai |
52.1 | live | 100% | $0.02 | 1 | 3 | $0.02 |
| 2748 | Scalogy Real Estate Deals x402-scalogy-production.up.railway.app |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2749 | x402-watcher-api-main.jpgame-intel.workers.dev x402-watcher-api-main.jpgame-intel.workers.dev |
52.1 | live | 100% | $0.02 | 1 | 1 | $0.02 |
| 2750 | x402.aubr.ai x402.aubr.ai |
52.1 | live | 100% | $0.02 | 1 | 1 | $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 10 h ago. LogicNodes does not run these services or take a cut.