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
$374,100USDC received on Base, 7 days
| # | Provider | Score | Now | Uptime 72h | Income 7d | Payers 7d | Endpoints | From |
|---|---|---|---|---|---|---|---|---|
| 4201 | nut402.vercel.app nut402.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.01 |
| 4202 | nuza.io nuza.io |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.00516 |
| 4203 | retraced pay.retraced.site |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4204 | penny-tech.vercel.app penny-tech.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4205 | pong-pay-production.up.railway.app pong-pay-production.up.railway.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4206 | pplx.x402.paysponge.com pplx.x402.paysponge.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4207 | preflight-agent.netlify.app preflight-agent.netlify.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.02 |
| 4208 | presign-guard presign-guard.onrender.com |
0.0 | down | 0% | shared | 0 | 1 | $0.01 |
| 4209 | proxy.x402scan.com proxy.x402scan.com |
0.0 | down | 0% | $0.00 | 0 | 6 | $0.01 |
| 4210 | TaskForge Agent Assurance qaegxjxaavxdqihfgzhr.supabase.co |
0.0 | down | 0% | $0.00 | 0 | 3 | $0.01 |
| 4211 | quickly-techrepublic-modified-fate.trycloudflare.com quickly-techrepublic-modified-fate.trycloudflare.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4212 | ratchetx.xyz ratchetx.xyz |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4213 | relaynetwork.ai relaynetwork.ai |
0.0 | down | 0% | $0.00 | 0 | 4 | $0.001 |
| 4214 | relayzero.ai relayzero.ai |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4215 | safeconduct.vercel.app safeconduct.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.001 |
| 4216 | server.r1xlabs.com server.r1xlabs.com |
0.0 | down | 0% | $0.00 | 0 | 4 | $0.01 |
| 4217 | shadowharness.com shadowharness.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $2.00 |
| 4218 | BlockLabs Catalog shop.blocklabs.nl |
0.0 | down | 0% | $0.00 | 0 | 5 | $0.001 |
| 4219 | si.kgninja.dev si.kgninja.dev |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4220 | Signal Forge Prospect Qualifier signalforgestudios.com |
0.0 | down | 0% | $0.00 | 0 | 5 | $0.005 |
| 4221 | slinging-chloride-chair.ngrok-free.dev slinging-chloride-chair.ngrok-free.dev |
0.0 | down | 0% | $0.00 | 0 | 1 | $1.00 |
| 4222 | socialx402.com socialx402.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.06 |
| 4223 | sol.blockrun.ai sol.blockrun.ai |
0.0 | down | 0% | shared | 0 | 85 | $0.001 |
| 4224 | Solana Pulse solana-pulse-gateway-1021990235790.us-central1.run.app |
0.0 | down | 0% | $0.00 | 0 | 24 | $0.01 |
| 4225 | Spark Invocation Assurance spark-api-preflight.replit.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4226 | stable-enrich-anncfzk3u-merit-systems.vercel.app stable-enrich-anncfzk3u-merit-systems.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $0.01 |
| 4227 | stable-enrich-ecdu27dk1-merit-systems.vercel.app stable-enrich-ecdu27dk1-merit-systems.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $0.01 |
| 4228 | stable-enrich-git-payai-solana-facilitator-merit-systems.vercel.app stable-enrich-git-payai-solana-facilitator-merit-systems.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $0.01 |
| 4229 | stableemail.dev stableemail.dev |
0.0 | down | 0% | $0.00 | 0 | 1 | $1.00 |
| 4230 | Stock Value Lens stockvaluelens.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4231 | strategy-sim.vercel.app strategy-sim.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.01 |
| 4232 | Subpay invoice reader subpay.ai |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.04 |
| 4233 | subsidy-stylized-unaligned.ngrok-free.dev subsidy-stylized-unaligned.ngrok-free.dev |
0.0 | down | 0% | $0.00 | 0 | 4 | $0.01 |
| 4234 | survivor-x402-production.up.railway.app survivor-x402-production.up.railway.app |
0.0 | down | 0% | $0.00 | 0 | 3 | $0.01 |
| 4235 | svm402-service svm402.com |
0.0 | down | 0% | $0.00 | 0 | 14 | $0.002 |
| 4236 | tc-ai-premium.vercel.app tc-ai-premium.vercel.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.10 |
| 4237 | testmint-d3p2qf3rm-proceeds.vercel.app testmint-d3p2qf3rm-proceeds.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4238 | testmint-git-ak-fixes-proceeds.vercel.app testmint-git-ak-fixes-proceeds.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4239 | testmint-git-ak-refactor-darkhorselabs.vercel.app testmint-git-ak-refactor-darkhorselabs.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4240 | testmint-git-main-darkhorselabs.vercel.app testmint-git-main-darkhorselabs.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4241 | testmint-m4s65rltb-proceeds.vercel.app testmint-m4s65rltb-proceeds.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4242 | testmint-mhjxzmivl-proceeds.vercel.app testmint-mhjxzmivl-proceeds.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4243 | testmint-q21lyoxbp-proceeds.vercel.app testmint-q21lyoxbp-proceeds.vercel.app |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4244 | testmint.myproceeds.xyz testmint.myproceeds.xyz |
0.0 | down | 0% | shared | 0 | 1 | $1.00 |
| 4245 | theoddsgap.com theoddsgap.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.02 |
| 4246 | thepocketoperator.com thepocketoperator.com |
0.0 | down | 0% | $0.00 | 0 | 1 | $0.001 |
| 4247 | trawl.run trawl.run |
0.0 | down | 0% | $0.00 | 0 | 1 | $4.00 |
| 4248 | ventis-production.up.railway.app ventis-production.up.railway.app |
0.0 | down | 0% | $0.00 | 0 | 2 | $0.004 |
| 4249 | wallet-cex-flows-mcp.mtree.workers.dev wallet-cex-flows-mcp.mtree.workers.dev |
0.0 | down | 0% | shared | 0 | 1 | $0.05 |
| 4250 | wallet-funding-trace-mcp.mtree.workers.dev wallet-funding-trace-mcp.mtree.workers.dev |
0.0 | down | 0% | shared | 0 | 1 | $0.05 |
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 15 h ago. LogicNodes does not run these services or take a cut.