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.
120,425paid endpoints listed
4,351providers
3,578 / 4,032live at last check / checked
$333,718USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 3751 | Time Series Calculators time-series-calc.x402tookit.com |
10.5 | pending | – | shared | 2 | 8 | $0.02 |
| 3752 | Time Zones and Dates timezone-time.x402tookit.com |
10.5 | pending | – | shared | 2 | 6 | $0.02 |
| 3753 | Trade and Customs Reference trade-reference.x402tookit.com |
10.5 | pending | – | shared | 2 | 3 | $0.02 |
| 3754 | US Treasury Macro treasury-macro.x402tookit.com |
10.5 | pending | – | shared | 2 | 1 | $0.02 |
| 3755 | UK Open Data uk-open-data.x402tookit.com |
10.5 | pending | – | shared | 2 | 6 | $0.02 |
| 3756 | Unicode Text Safety Tools unicode-text-tools.x402tookit.com |
10.5 | pending | – | shared | 2 | 3 | $0.02 |
| 3757 | Units and Conversions units-convert.x402tookit.com |
10.5 | pending | – | shared | 2 | 9 | $0.02 |
| 3758 | URL & Text Tools url-text-tools.x402tookit.com |
10.5 | pending | – | shared | 2 | 8 | $0.02 |
| 3759 | US Counties and FIPS us-counties.x402tookit.com |
10.5 | pending | – | shared | 2 | 8 | $0.02 |
| 3760 | US Tax Calculators us-tax-calc.x402tookit.com |
10.5 | pending | – | shared | 2 | 8 | $0.02 |
| 3761 | Video & Timecode Calc video-calc.x402tookit.com |
10.5 | pending | – | shared | 2 | 3 | $0.02 |
| 3762 | Vulnerability Intelligence vuln-intel.x402tookit.com |
10.5 | pending | – | shared | 2 | 6 | $0.02 |
| 3763 | Global Weather weather-global.x402tookit.com |
10.5 | pending | – | shared | 2 | 1 | $0.02 |
| 3764 | Web Page Extract web-extract.x402tookit.com |
10.5 | pending | – | shared | 2 | 1 | $0.03 |
| 3765 | Web Probe web-probe.x402tookit.com |
10.5 | pending | – | shared | 2 | 3 | $0.02 |
| 3766 | Web3 Tools web3-tools.x402tookit.com |
10.5 | pending | – | shared | 2 | 4 | $0.02 |
| 3767 | Wikidata Facts wikidata-facts.x402tookit.com |
10.5 | pending | – | shared | 2 | 7 | $0.03 |
| 3768 | Word Tools word-tools.x402tookit.com |
10.5 | pending | – | shared | 2 | 9 | $0.02 |
| 3769 | Work Time Calc work-time-calc.x402tookit.com |
10.5 | pending | – | shared | 2 | 9 | $0.02 |
| 3770 | World Bank Country Data world-bank.x402tookit.com |
10.5 | pending | – | shared | 2 | 7 | $0.02 |
| 3771 | World Cities world-cities.x402tookit.com |
10.5 | pending | – | shared | 2 | 8 | $0.02 |
| 3772 | x402 Market Intelligence x402-meta.x402tookit.com |
10.5 | pending | – | shared | 2 | 9 | $0.02 |
| 3773 | agent-distribution-gateway-q7l1vflvp-team-nora1.vercel.app agent-distribution-gateway-q7l1vflvp-team-nora1.vercel.app |
10.1 | pending | – | $0.98 | 14 | 2 | $0.03 |
| 3774 | Factline factline.dev |
10.0 | down | 0% | $2.03 | 8 | 40 | $0.001 |
| 3775 | agent.agentflare.org agent.agentflare.org |
9.8 | down | 0% | $10.00 | 1 | 3 | $0.005 |
| 3776 | Afriref - Africa reference data afriref.dev |
9.5 | down | 0% | shared | 7 | 26 | $0.002 |
| 3777 | Asiaref - Asia reference data asiaref.dev |
9.5 | down | 0% | shared | 7 | 24 | $0.002 |
| 3778 | Ausref - Oceania reference data ausref.dev |
9.5 | down | 0% | shared | 7 | 24 | $0.002 |
| 3779 | DomainRef domainref.dev |
9.5 | down | 0% | shared | 7 | 2 | $0.005 |
| 3780 | Euroref - Europe reference data euroref.dev |
9.5 | down | 0% | shared | 7 | 24 | $0.002 |
| 3781 | Latamref - LatAm reference data latamref.dev |
9.5 | down | 0% | shared | 7 | 24 | $0.002 |
| 3782 | Usaref - N America reference usaref.dev |
9.5 | down | 0% | shared | 7 | 24 | $0.002 |
| 3783 | agents.ai-rook.com agents.ai-rook.com |
9.4 | down | 0% | $2.61 | 5 | 8 | $0.001 |
| 3784 | locus.report locus.report |
9.4 | down | 0% | $0.98 | 11 | 2 | $0.01 |
| 3785 | LLM Red-Team Scanner llmrt-companion.manhliemcn4euwlu.workers.dev |
9.2 | down | 0% | $2.42 | 5 | 34 | $0.000058 |
| 3786 | x402-dns-auth-checker.microtools-x402.workers.dev x402-dns-auth-checker.microtools-x402.workers.dev |
9.1 | pending | – | shared | 2 | 2 | $0.003 |
| 3787 | x402-package-advisories.microtools-x402.workers.dev x402-package-advisories.microtools-x402.workers.dev |
9.1 | pending | – | shared | 2 | 1 | $0.003 |
| 3788 | x402-sec-edgar.microtools-x402.workers.dev x402-sec-edgar.microtools-x402.workers.dev |
9.1 | pending | – | shared | 2 | 1 | $0.001 |
| 3789 | Subnano subnano.ai |
8.9 | down | 0% | $2.73 | 4 | 1 | $0.10 |
| 3790 | Subnano subnano.me |
8.9 | down | 0% | $2.73 | 4 | 1 | $0.56 |
| 3791 | RAVN app.ravn.exchange |
8.7 | down | 0% | $1.53 | 6 | 2 | $0.001 |
| 3792 | falcon.sol comps falcon-comps.vercel.app |
8.4 | down | 0% | shared | 1 | 5 | $0.01 |
| 3793 | falcon.sol docs falcondocs.vercel.app |
8.4 | down | 0% | shared | 1 | 4 | $0.0025 |
| 3794 | solana-wallet-x402 solana-wallet-intel-phi.vercel.app |
8.4 | down | 0% | shared | 1 | 12 | $0.003 |
| 3795 | deal-radar-x402 deal-radar-x402.vercel.app |
8.4 | down | 0% | shared | 1 | 2 | $0.01 |
| 3796 | falcon-sol-agents.vercel.app falcon-sol-agents.vercel.app |
8.4 | down | 0% | shared | 1 | 1 | $0.01 |
| 3797 | falcon-sol-agents.falcon-sol.workers.dev falcon-sol-agents.falcon-sol.workers.dev |
8.4 | down | 0% | shared | 1 | 1 | $0.01 |
| 3798 | falcon.sol structures falcon-structures.vercel.app |
8.4 | down | 0% | shared | 1 | 1 | $0.02 |
| 3799 | AIS Fleet aisfleet.com |
8.4 | down | 0% | $2.80 | 3 | 13 | $0.01 |
| 3800 | Agent Extraction API freetier-agent-api.pages.dev |
8.2 | down | 0% | $0.484 | 10 | 63 | $0.001 |
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 5 h ago. LogicNodes does not run these services or take a cut.