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
$337,906USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 1951 | agent-msb-verify.iykykblog.workers.dev agent-msb-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.10 |
| 1952 | agent-recall-screen.iykykblog.workers.dev agent-recall-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.02 |
| 1953 | agent-robotics-compliance.iykykblog.workers.dev agent-robotics-compliance.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.10 |
| 1954 | agent-safety-oracle.iykykblog.workers.dev agent-safety-oracle.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1955 | agent-sanctions-screen.iykykblog.workers.dev agent-sanctions-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.02 |
| 1956 | agent-sec-lookup.iykykblog.workers.dev agent-sec-lookup.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.005 |
| 1957 | agent-seller-preflight.iykykblog.workers.dev agent-seller-preflight.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.03 |
| 1958 | agent-smb-loan-verify.iykykblog.workers.dev agent-smb-loan-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1959 | agent-tariff-lookup.iykykblog.workers.dev agent-tariff-lookup.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1960 | agent.connskill.com agent.connskill.com |
55.0 | live | 100% | $0.34 | 3 | 28 | $0.005 |
| 1961 | au-charity-verify.iykykblog.workers.dev au-charity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1962 | au-company-verify.iykykblog.workers.dev au-company-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1963 | canada-charity-verify.iykykblog.workers.dev canada-charity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1964 | canada-entity-verify.iykykblog.workers.dev canada-entity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1965 | college-verify.iykykblog.workers.dev college-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.03 |
| 1966 | colorado-entity-verify.iykykblog.workers.dev colorado-entity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1967 | drug-shortage-check.iykykblog.workers.dev drug-shortage-check.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1968 | entity-resolve.iykykblog.workers.dev entity-resolve.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1969 | eu-award-verify.iykykblog.workers.dev eu-award-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1970 | facility-verify.iykykblog.workers.dev facility-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1971 | food-hygiene-verify.iykykblog.workers.dev food-hygiene-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1972 | formd-offering-verify.iykykblog.workers.dev formd-offering-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1973 | holdings-13f-verify.iykykblog.workers.dev holdings-13f-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1974 | home-health-screen.iykykblog.workers.dev home-health-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1975 | hospital-screen.iykykblog.workers.dev hospital-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1976 | ireland-charity-verify.iykykblog.workers.dev ireland-charity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1977 | mine-safety-screen.iykykblog.workers.dev mine-safety-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1978 | nonprofit-verify.iykykblog.workers.dev nonprofit-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1979 | nrc-event-screen.iykykblog.workers.dev nrc-event-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1980 | nursing-home-screen.iykykblog.workers.dev nursing-home-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1981 | nyc-license-verify.iykykblog.workers.dev nyc-license-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1982 | nz-charity-verify.iykykblog.workers.dev nz-charity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1983 | osha-safety-screen.iykykblog.workers.dev osha-safety-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1984 | perm-sponsor-screen.iykykblog.workers.dev perm-sponsor-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1985 | physician-payment-screen.iykykblog.workers.dev physician-payment-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1986 | provider-verify.iykykblog.workers.dev provider-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1987 | scotland-charity-verify.iykykblog.workers.dev scotland-charity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1988 | sponsor-screen.iykykblog.workers.dev sponsor-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1989 | trial-lookup.iykykblog.workers.dev trial-lookup.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1990 | uk-charity-verify.iykykblog.workers.dev uk-charity-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1991 | uk-owner-screen.iykykblog.workers.dev uk-owner-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.10 |
| 1992 | vehicle-recall-check.iykykblog.workers.dev vehicle-recall-check.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1993 | vessel-verify.iykykblog.workers.dev vessel-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1994 | vin-verify.iykykblog.workers.dev vin-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.05 |
| 1995 | wage-verify.iykykblog.workers.dev wage-verify.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1996 | whd-enforcement-screen.iykykblog.workers.dev whd-enforcement-screen.iykykblog.workers.dev |
55.0 | live | 100% | shared | 3 | 1 | $0.08 |
| 1997 | Protocol Radar - Aaron Zhang aaron-protocol-radar.vercel.app |
55.0 | live | 100% | $0.12 | 4 | 4 | $0.01 |
| 1998 | Bitcoin Tech Radar - Aaron Zhang btc-radar.vercel.app |
55.0 | live | 100% | $0.12 | 4 | 3 | $0.01 |
| 1999 | PreIPO Feed by Aaron Zhang preipo-feed.vercel.app |
55.0 | live | 100% | $0.12 | 4 | 7 | $0.01 |
| 2000 | StableCrypto stablecrypto.dev |
55.0 | live | 100% | $0.10 | 4 | 3 | $0.01 |
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 21 h ago. LogicNodes does not run these services or take a cut.