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.

126,094paid endpoints listed
4,142providers
1,938 / 2,195live at last check / checked
$319,038USDC received on Base, 7 days
#ProviderScoreNowUptime 72hIncome 7dPayers 7dEndpointsFrom
351NetIntel
netintel.dev		 64.5live100%$2.4336128$0.001
352x402 AI Tools
ai.kagurazaka.dev		 64.3live100%shared1912$0.002
353x402 Base Tools
base.kagurazaka.dev		 64.3live100%shared199$0.001
354x402 Checkup
checkup.kagurazaka.dev		 64.3live100%shared191$0.005
355x402 Data API
data.kagurazaka.dev		 64.3live100%shared1912$0.002
356x402 Dev Tools
dev.kagurazaka.dev		 64.3live100%shared197$0.002
357x402 Service Finder
finder.kagurazaka.dev		 64.3live100%shared191$0.002
358x402 Image Tools
image.kagurazaka.dev		 64.3live100%shared1910$0.001
3592s
2s.io		 64.3live100%$2.7131116$0.0025
360Stock Trends Market Intelligence
api.stocktrends.com		 64.2live100%$11.39719$0.0025
361x4o2 FOMO Data
fomo.x4o2.com		 64.1live100%$5.511514$0.001
362Locus x402 Services
alphavantage.x402.paywithlocus.com		 64.1live100%shared163$0.008
363Locus x402 Services
anthropic.x402.stage.paywithlocus.com		 64.1live100%shared161$0.001
364Locus x402 Services
apollo.x402.paywithlocus.com		 64.1live100%shared165$0.005
365Locus x402 Services
billboard.x402.paywithlocus.com		 64.1live100%shared162$0.001
366Locus x402 Services
browser-use.x402.paywithlocus.com		 64.1live100%shared161$0.031
367Locus x402 Services
builtwith.x402.paywithlocus.com		 64.1live100%shared161$0.055
368Locus x402 Services
deepgram.x402.paywithlocus.com		 64.1live100%shared162$0.004
369Locus x402 Services
deepl.x402.paywithlocus.com		 64.1live100%shared162$0.005
370Locus x402 Services
deepseek.x402.stage.paywithlocus.com		 64.1live100%shared161$0.003
371Locus x402 Services
diffbot.x402.paywithlocus.com		 64.1live100%shared161$0.0042
372Locus x402 Services
edgar-search.x402.paywithlocus.com		 64.1live100%shared161$0.008
373Locus x402 Services
edgar.x402.paywithlocus.com		 64.1live100%shared161$0.008
374Locus x402 Services
elevenlabs.x402.paywithlocus.com		 64.1live100%shared161$0.00375
375Locus x402 Services
fal.x402.paywithlocus.com		 64.1live100%shared161$0.006146
376Locus x402 Services
grok.x402.paywithlocus.com		 64.1live100%shared162$0.001
377Locus x402 Services
groq.x402.paywithlocus.com		 64.1live100%shared161$0.005
378Locus x402 Services
groq.x402.stage.paywithlocus.com		 64.1live100%shared161$0.005
379Locus x402 Services
hunter.x402.paywithlocus.com		 64.1live100%shared165$0.008
380Locus x402 Services
judge0.x402.paywithlocus.com		 64.1live100%shared162$0.005
381Locus x402 Services
mapbox.x402.paywithlocus.com		 64.1live100%shared162$0.004
382Locus x402 Services
mistral.x402.paywithlocus.com		 64.1live100%shared161$0.005
383Locus x402 Services
mistral.x402.stage.paywithlocus.com		 64.1live100%shared161$0.005
384Wikipedia Search
agentsvc.io		 64.1live100%$2.7628128$0.002
385Bot Bazaar
bot-bazaar.fly.dev		 64.0live100%$7.6510198$0.01
386NewBotLabor Agent Preflight
newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run		 63.9live100%$16.0642$0.002
387zFinia Company Evidence Pack
api.zfinia.com		 63.9live100%$11.80615$0.004
388Foundry CSV Pipeline Integrity
foundry-csv-pipeline-integrity-mainnet.inference-chip-index.workers.dev		 63.9live100%$11.8061$0.05
389Foundry agent services
foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev		 63.9live100%$11.8065$0.003
390Lumi Trades
api.lumitrades.io		 63.9live100%$11.66613$0.004
391api.anchor-x402.com
api.anchor-x402.com		 63.9live100%$2.013418$0.001
392Prediction market day pass
aizamon.com		 63.8live100%$9.82726$0.003
393api.aizamon.com
api.aizamon.com		 63.8live100%$9.7771$0.25
394Sirenic
api.sirenic.eu		 63.6live100%$6.0511125$0.002
39560SecMonitor Status API
60secmonitor-status-api.dario-9fa.workers.dev		 63.6live100%shared181$0.01
396AEO Inspector
aeoinspector.com		 63.6live100%shared185$0.05
397Free Small Biz Tools
api.freesmallbiztools.com		 63.6live100%shared183$0.01
398InboxGuards Email Test
api.inboxguardstest.com		 63.6live100%shared183$0.005
39960SecMonitor Status API
api.isitdownapi.com		 63.6live100%shared183$0.01
400Mail Security Tools
api.mailsecuritytools.com		 63.6live100%shared186$0.01
← previous4,142 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 16 h ago. LogicNodes does not run these services or take a cut.