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
$302,992USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 2601 | api.getparthound.com api.getparthound.com |
52.7 | live | 100% | $0.25 | 1 | 1 | $0.25 |
| 2602 | BrainChain brain.usebrainchain.com |
52.6 | live | 100% | $0.20 | 1 | 1 | $1.00 |
| 2603 | claim-grounding.prospectintel.workers.dev claim-grounding.prospectintel.workers.dev |
52.6 | live | 100% | $0.20 | 1 | 4 | $0.05 |
| 2604 | lasso.sh lasso.sh |
52.6 | live | 100% | $0.20 | 1 | 1 | $5.00 |
| 2605 | prospect-intelligence.prospectintel.workers.dev prospect-intelligence.prospectintel.workers.dev |
52.6 | live | 100% | $0.20 | 1 | 4 | $0.08 |
| 2606 | People Data Labs API stablepeopledata.dev |
52.6 | live | 100% | $0.20 | 1 | 2 | $0.10 |
| 2607 | Dicta Realtime STT dicta-notes.com |
52.6 | live | 100% | $0.195 | 1 | 5 | $0.06 |
| 2608 | Imagcon imagcon.app |
52.6 | live | 100% | $0.195 | 1 | 8 | $0.01 |
| 2609 | Stack Billing stackbill.app |
52.6 | live | 100% | $0.195 | 1 | 1 | $0.10 |
| 2610 | BeliefState beliefstate.ai |
52.5 | live | 100% | $0.16 | 1 | 2 | $0.02 |
| 2611 | WithZero agents.withzero.xyz |
52.5 | live | 100% | $0.15 | 1 | 31 | $0.01 |
| 2612 | kronos.forgemesh.io kronos.forgemesh.io |
52.5 | live | 100% | $0.15 | 1 | 6 | $0.02 |
| 2613 | Decision Readiness reality-assurance.up.railway.app |
52.3 | live | 100% | $0.11 | 1 | 1 | $0.11 |
| 2614 | Aient aient.ai |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.10 |
| 2615 | Polymarket Intelligence API api.polym.uk |
52.3 | live | 100% | $0.10 | 1 | 2 | $0.05 |
| 2616 | x402 Intelligence API api.x402intel.uk |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.05 |
| 2617 | crypto-tx-categorizer-production.up.railway.app crypto-tx-categorizer-production.up.railway.app |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.10 |
| 2618 | lanescrypt.vercel.app lanescrypt.vercel.app |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.05 |
| 2619 | lemscrypt.vercel.app lemscrypt.vercel.app |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.05 |
| 2620 | nebulacomponents.com nebulacomponents.com |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.10 |
| 2621 | skynetzero-research skynetzero-research.skynetzero-research.workers.dev |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.10 |
| 2622 | Web Capture web-capture.j0wn0.chatgpt.site |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.10 |
| 2623 | x402-whiz-token.vercel.app x402-whiz-token.vercel.app |
52.3 | live | 100% | $0.10 | 1 | 2 | $0.10 |
| 2624 | x402.cambrian.network x402.cambrian.network |
52.3 | live | 100% | $0.10 | 1 | 7 | $0.05 |
| 2625 | x402.cambrian.org x402.cambrian.org |
52.3 | live | 100% | $0.10 | 1 | 33 | $0.05 |
| 2626 | api.climateassured.com api.climateassured.com |
52.3 | live | 100% | $0.10 | 1 | 2 | $0.05 |
| 2627 | vitrineretirement.ca vitrineretirement.ca |
52.3 | live | 100% | $0.10 | 1 | 1 | $0.10 |
| 2628 | piggybank.loth2023ys.workers.dev piggybank.loth2023ys.workers.dev |
52.3 | live | 100% | $0.09 | 1 | 2 | $0.004 |
| 2629 | dev.gavedu.com dev.gavedu.com |
52.2 | live | 100% | $0.07 | 1 | 2 | $0.02 |
| 2630 | emoji.today emoji.today |
52.2 | live | 100% | $0.07 | 1 | 1 | $0.01 |
| 2631 | api.stacktr.ee api.stacktr.ee |
52.2 | live | 100% | $0.058986 | 1 | 2 | $0.50 |
| 2632 | Agent Social Relay agent-social-relay.biv-ai-lab.workers.dev |
52.2 | live | 100% | $0.05 | 1 | 1 | $0.05 |
| 2633 | api.shoal.xyz api.shoal.xyz |
52.2 | live | 100% | $0.05 | 1 | 1 | $0.05 |
| 2634 | W System api.wsystem.dev |
52.2 | live | 100% | $0.05 | 1 | 14 | $0.01 |
| 2635 | articlesyndicator.net articlesyndicator.net |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2636 | aurelius-node-01.onrender.com aurelius-node-01.onrender.com |
52.2 | live | 100% | $0.05 | 1 | 1 | $0.05 |
| 2637 | aurelius-node-02-socal.onrender.com aurelius-node-02-socal.onrender.com |
52.2 | live | 100% | $0.05 | 1 | 1 | $0.05 |
| 2638 | carinjuryattorney.biz carinjuryattorney.biz |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2639 | contactcampaigns.com contactcampaigns.com |
52.2 | live | 100% | shared | 1 | 1 | $0.50 |
| 2640 | AUTOGROK Desk desk.grokaiapps.com |
52.2 | live | 100% | $0.05 | 1 | 5 | $0.03 |
| 2641 | DiffDeck diffdeck-api.vercel.app |
52.2 | live | 100% | $0.05 | 1 | 1 | $0.05 |
| 2642 | duiattorneysonline.net duiattorneysonline.net |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2643 | evensteven.bet evensteven.bet |
52.2 | live | 100% | $0.05 | 1 | 1 | $0.05 |
| 2644 | expertlawforum.com expertlawforum.com |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2645 | fast-debt-reduction.com fast-debt-reduction.com |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2646 | freeinvoicer.com freeinvoicer.com |
52.2 | live | 100% | shared | 1 | 1 | $0.05 |
| 2647 | homeloanremortgage.org homeloanremortgage.org |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2648 | iotsoftwaredeveloper.com iotsoftwaredeveloper.com |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
| 2649 | leadsuperstore.net leadsuperstore.net |
52.2 | live | 100% | shared | 1 | 1 | $0.25 |
| 2650 | linkdepot.net linkdepot.net |
52.2 | live | 100% | shared | 1 | 1 | $1.00 |
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 8 h ago. LogicNodes does not run these services or take a cut.