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
1,927 / 2,182live at last check / checked
$341,839USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 901 | ioswarm.io ioswarm.io |
55.5 | live | 100% | $1.01 | 2 | 16 | $0.01 |
| 902 | BeliefState beliefstate.ai |
55.5 | live | 100% | $0.28 | 4 | 2 | $0.02 |
| 903 | Eckari api.eckari.com |
55.5 | live | 100% | $0.09 | 5 | 11 | $0.001 |
| 904 | polls.karbach.digital api.polls.karbach.digital |
55.5 | live | 100% | $0.09 | 5 | 46 | $0.01 |
| 905 | GENESIS Universal AI Execution genesis.palsus2023.workers.dev |
55.4 | live | 100% | $0.508 | 3 | 6 | $0.001 |
| 906 | CortexCloud api.cortexcloud.org |
55.4 | live | 100% | $0.26 | 4 | 15 | $0.004 |
| 907 | api.biotechcatalystsentinel.com api.biotechcatalystsentinel.com |
55.4 | live | 100% | $0.25 | 4 | 2 | $0.02 |
| 908 | Bacon Services baconservices.com |
55.4 | live | 100% | $0.24 | 4 | 8 | $0.01 |
| 909 | Keystone Opportunity API keystone-opportunity-api.keystone-opportunity.workers.dev |
55.4 | live | 100% | $0.076 | 5 | 2 | $0.001 |
| 910 | AI Money - Africa FX agents.nibiashara.biz |
55.3 | live | 100% | $0.47 | 3 | 3 | $0.01 |
| 911 | geoprimitives api.geoprimitives.dev |
55.3 | live | 100% | $0.47 | 3 | 3 | $0.005 |
| 912 | api.aurelianflo.com api.aurelianflo.com |
55.3 | live | 100% | $0.20 | 4 | 2 | $0.01 |
| 913 | Web Search 4yearcycle.com |
55.3 | live | 100% | $0.05 | 5 | 3 | $0.005 |
| 914 | Agent Data API agent-data-api.agentdata.workers.dev |
55.3 | live | 100% | $0.05 | 5 | 1 | $0.01 |
| 915 | foi.itsthesheet.ca foi.itsthesheet.ca |
55.3 | live | 100% | $0.05 | 5 | 1 | $0.01 |
| 916 | Cyre cyre.dev |
55.3 | live | 100% | $0.046 | 5 | 25 | $0.001 |
| 917 | api.munition.io api.munition.io |
55.3 | live | 100% | $0.036 | 5 | 15 | $0.001 |
| 918 | fittings fittings.sh |
55.3 | live | 100% | $0.036 | 5 | 7 | $0.003 |
| 919 | faultcode-diagnostic-mcp.bowling-anthony.workers.dev faultcode-diagnostic-mcp.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 1 | $0.006 |
| 920 | feed-reader.bowling-anthony.workers.dev feed-reader.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 1 | $0.005 |
| 921 | grocery-basket.bowling-anthony.workers.dev grocery-basket.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 3 | $0.01 |
| 922 | mcpfax-diag.bowling-anthony.workers.dev mcpfax-diag.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 5 | $0.005 |
| 923 | mcpfax-intel.bowling-anthony.workers.dev mcpfax-intel.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 1 | $0.01 |
| 924 | mcpfax-markets.bowling-anthony.workers.dev mcpfax-markets.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 2 | $0.005 |
| 925 | mcpfax-utility.bowling-anthony.workers.dev mcpfax-utility.bowling-anthony.workers.dev |
55.3 | live | 100% | shared | 5 | 2 | $0.005 |
| 926 | gblin-sentinel.vercel.app gblin-sentinel.vercel.app |
55.3 | live | 100% | $0.031 | 5 | 2 | $0.002 |
| 927 | gblin.digital gblin.digital |
55.3 | live | 100% | $0.031 | 5 | 4 | $0.001 |
| 928 | Kertivo deep payment verify kertivo.com |
55.3 | live | 100% | $0.031 | 5 | 3 | $0.005 |
| 929 | Kertivo Logs logfilter.hectichustle.workers.dev |
55.3 | live | 100% | $0.031 | 5 | 1 | $0.005 |
| 930 | Kristo Intelligence kristo-intelligence-api.onrender.com |
55.3 | live | 100% | $0.027 | 5 | 5 | $0.003 |
| 931 | tollbooth api.flipvo.com |
55.3 | live | 100% | $0.025 | 5 | 13 | $0.001 |
| 932 | Automaton Colony colony.automatoncolony.xyz |
55.3 | live | 100% | $0.0245 | 5 | 5 | $0.0049 |
| 933 | agora-x402-production.up.railway.app agora-x402-production.up.railway.app |
55.3 | live | 100% | $0.024 | 5 | 1 | $0.004 |
| 934 | agoraverify.com agoraverify.com |
55.3 | live | 100% | $0.024 | 5 | 2 | $0.004 |
| 935 | api.terradeed.co.uk api.terradeed.co.uk |
55.2 | live | 100% | $0.19 | 4 | 2 | $0.01 |
| 936 | Agent Signup Inbox agent-inbox.sander-van-aard.workers.dev |
55.2 | live | 100% | $0.184 | 4 | 1 | $0.02 |
| 937 | agentdata-api.sander-van-aard.workers.dev agentdata-api.sander-van-aard.workers.dev |
55.2 | live | 100% | $0.184 | 4 | 36 | $0.002 |
| 938 | Lorg Check api.lorglabs.com |
55.2 | live | 100% | $0.18 | 4 | 2 | $0.01 |
| 939 | The Clinic clinic.sapthumbprint.com |
55.2 | live | 100% | $0.014 | 5 | 2 | $0.001 |
| 940 | datoka-agent.bhazarstudio.workers.dev datoka-agent.bhazarstudio.workers.dev |
55.2 | live | 100% | $0.01 | 5 | 1 | $0.002 |
| 941 | datoka-api.bhazarstudio.workers.dev datoka-api.bhazarstudio.workers.dev |
55.2 | live | 100% | $0.01 | 5 | 1 | $0.002 |
| 942 | Keyless keyless-theta.vercel.app |
55.2 | live | 100% | $0.01 | 5 | 3 | $0.002 |
| 943 | Usenami api.usenami.io |
55.2 | live | 100% | $0.009 | 5 | 4 | $0.001 |
| 944 | api.seneschal.space api.seneschal.space |
55.2 | live | 100% | $0.007 | 5 | 2 | $0.001 |
| 945 | arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev |
55.2 | live | 100% | $0.005 | 5 | 1 | $0.001 |
| 946 | x402 Chain Tools blockchain-api.x402-chain-tools.workers.dev |
55.2 | live | 100% | $0.005 | 5 | 4 | $0.001 |
| 947 | Pubrio agents.pubrio.com |
55.1 | live | 100% | $0.41 | 3 | 26 | $0.01 |
| 948 | telemost-x402 api.telemost.io |
55.1 | live | 100% | $0.41 | 3 | 13 | $0.0165 |
| 949 | api.vindexapi.dev api.vindexapi.dev |
55.1 | live | 100% | $0.16 | 4 | 1 | $0.01 |
| 950 | arxiv.scrapemole.workers.dev arxiv.scrapemole.workers.dev |
55.1 | live | 100% | shared | 4 | 4 | $0.002 |
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 1 h ago. LogicNodes does not run these services or take a cut.