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
$299,686USDC received on Base, 7 days
#ProviderScoreNowUptime 72hIncome 7dPayers 7dEndpointsFrom
2401x402-seller
x402-seller-m8nx.onrender.com		 53.2live100%$0.0225$0.01
24020xBs
x402.0xbs.org		 53.2live100%$0.0221$0.01
2403santyvv-data
x402.santyvv.com		 53.2live100%$0.02239$0.01
2404x402toll.com
x402toll.com		 53.2live100%$0.0222$0.01
2405api.redqueen-serving.cloud
api.redqueen-serving.cloud		 53.2live100%$0.0221$0.01
2406data-api.orbbit.co
data-api.orbbit.co		 53.2live100%$0.0222$0.01
2407A2A Nexus CanadaBuys
api.postulated.store		 53.2live100%$0.0222$0.01
2408TradersHub
api.tradershub.dev		 53.2live100%$0.0221$0.01
2409rekt-ceo-brandification.onrender.com
rekt-ceo-brandification.onrender.com		 53.2live100%$0.0221$0.01
2410x402 Endpoint Payee Screening
trust-agent.io		 53.2live100%$0.01801629$0.002
2411x402check
x402check.xyz		 53.2live100%$0.017522$0.002
2412capi2-agent-commerce.vandurmedries.workers.dev
capi2-agent-commerce.vandurmedries.workers.dev		 53.2live100%$0.01621$0.008
2413capi2-foundry.vandurmedries.workers.dev
capi2-foundry.vandurmedries.workers.dev		 53.2live100%$0.01621$0.013
2414PowaHub
api.powahub.ai		 53.2live100%$0.0151210$0.0051
2415aisecurityguard.io
aisecurityguard.io		 53.2live100%$0.01524$0.0075
2416contract-guard
eltociear-contract-guard.hf.space		 53.2live100%$0.01521$0.005
2417skill-audit
eltociear-skill-audit.hf.space		 53.2live100%$0.015214$0.005
2418tokenguard
eltociear-tokenguard.hf.space		 53.2live100%$0.0152121$0.005
2419Legible Check
legible-check.ezealfa.workers.dev		 53.2live100%$0.01523$0.005
2420scribe.vimabrosta.com
scribe.vimabrosta.com		 53.2live100%$0.01523$0.005
2421badhttp
badhttp.dev		 53.2live100%$0.01421$0.01
2422Graph Advocate
graphadvocate.com		 53.2live100%$0.01423$0.01
2423Alien Probe
lookups.alienprobe.ai		 53.2live100%$0.01423$0.004
2424StakeChain
stakechain-api.vercel.app		 53.2live100%$0.01300321$0.001
2425agent-audit
agent-audit.agent-audit.workers.dev		 53.2live100%$0.01323$0.003
2426page-read
page-read.agent-audit.workers.dev		 53.2live100%$0.01321$0.001
2427[Deprecated] 17711 Websearch
api.17711.xyz		 53.2live100%$0.012215$0.002
2428ChainK9
api.chaink9.com		 53.2live100%$0.012212$0.002
2429Japan Postal Lookup
api.jpverify.com		 53.2live100%$0.01226$0.001
2430api.rocads.com.mx
api.rocads.com.mx		 53.2live100%$0.01224$0.002
2431Agent Transaction Trust
json-repair-api-9ybv.onrender.com		 53.2live100%$0.01225$0.001
2432toolbelt402.catalystdesk.workers.dev
toolbelt402.catalystdesk.workers.dev		 53.2live100%$0.01223$0.002
2433The Clinic
clinic.sapthumbprint.com		 53.2live100%$0.01122$0.001
2434adviser-verify.iykykblog.workers.dev
adviser-verify.iykykblog.workers.dev		 53.2live100%shared21$0.08
2435agent-aircraft-verify.iykykblog.workers.dev
agent-aircraft-verify.iykykblog.workers.dev		 53.2live100%shared21$0.08
2436agent-carrier-verify.iykykblog.workers.dev
agent-carrier-verify.iykykblog.workers.dev		 53.2live100%shared21$0.10
2437agent-climate-verify.iykykblog.workers.dev
agent-climate-verify.iykykblog.workers.dev		 53.2live100%shared21$0.05
2438agent-contractor-profile.iykykblog.workers.dev
agent-contractor-profile.iykykblog.workers.dev		 53.2live100%shared21$0.15
2439agent-debarment-check.iykykblog.workers.dev
agent-debarment-check.iykykblog.workers.dev		 53.2live100%shared21$0.01
2440agent-device-verify.iykykblog.workers.dev
agent-device-verify.iykykblog.workers.dev		 53.2live100%shared21$0.08
2441agent-domain-trust.iykykblog.workers.dev
agent-domain-trust.iykykblog.workers.dev		 53.2live100%shared21$0.01
2442agent-drug-verify.iykykblog.workers.dev
agent-drug-verify.iykykblog.workers.dev		 53.2live100%shared21$0.015
2443agent-entity-verify.iykykblog.workers.dev
agent-entity-verify.iykykblog.workers.dev		 53.2live100%shared21$0.03
2444agent-enviro-screen.iykykblog.workers.dev
agent-enviro-screen.iykykblog.workers.dev		 53.2live100%shared21$0.15
2445agent-foreign-agent-screen.iykykblog.workers.dev
agent-foreign-agent-screen.iykykblog.workers.dev		 53.2live100%shared21$0.08
2446agent-healthcare-exclusions.iykykblog.workers.dev
agent-healthcare-exclusions.iykykblog.workers.dev		 53.2live100%shared21$0.12
2447agent-insider-flow.iykykblog.workers.dev
agent-insider-flow.iykykblog.workers.dev		 53.2live100%shared21$0.08
2448agent-lobbyist-screen.iykykblog.workers.dev
agent-lobbyist-screen.iykykblog.workers.dev		 53.2live100%shared21$0.08
2449agent-msb-verify.iykykblog.workers.dev
agent-msb-verify.iykykblog.workers.dev		 53.2live100%shared21$0.10
2450agent-recall-screen.iykykblog.workers.dev
agent-recall-screen.iykykblog.workers.dev		 53.2live100%shared21$0.02
← previous4,351 providersnext →
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 4 h ago. LogicNodes does not run these services or take a cut.