x402 APIs running on testnets (Base Sepolia, Solana devnet) — handy to try the flow for free. These are catalogue links only: not probed and not scored (no real traffic to measure).
| API | Provider | Category | |
|---|---|---|---|
| 2s-rjsw718bb-alleyford 2s-rjsw718bb-alleyford.vercel.app | — | — | Docs ↗ |
| Agent-pay-pi agent-pay-pi.vercel.app | — | — | Docs ↗ |
| Agent-proxy agent-proxy.alchemypreview.com | — | — | Docs ↗ |
| Aifrens-base aifrens-base.spellcaster.lol | — | — | Docs ↗ |
| Api-staging api-staging.bazaar.tools | — | — | Docs ↗ |
| Api-staging api-staging.intra-tls2.dctx.link | — | — | Docs ↗ |
| Baobao baobao.meme | — | — | Docs ↗ |
| Brown-voluntary-aardwolf-402 brown-voluntary-aardwolf-402.mypinata.cloud | — | — | Docs ↗ |
| Dev-acp-x402 dev-acp-x402.virtuals.io | — | — | Docs ↗ |
| Example example.com | — | — | Docs ↗ |
| Exemplary-consideration-production exemplary-consideration-production.up.railway.app | — | — | Docs ↗ |
| Fourlaunch fourlaunch.xyz | — | — | Docs ↗ |
| Ged-x402 ged-x402.jvalamis.workers.dev | — | — | Docs ↗ |
| Grapevine grapevine.dev-mypinata.cloud | — | — | Docs ↗ |
| Gw gw.papayapay.xyz | — | — | Docs ↗ |
| Gxfc gxfc.world | — | — | Docs ↗ |
| Impersonation-test-2 impersonation-test-2.example.com | — | — | Docs ↗ |
| Jarspay jarspay.ai | — | — | Docs ↗ |
| Jpbonch jpbonch.com | — | — | Docs ↗ |
| Lore-prod lore-prod.vercel.app | — | — | Docs ↗ |
| Mcp-service mcp-service.zkid.xyz | — | — | Docs ↗ |
| Mint mint.800402.tech | — | — | Docs ↗ |
| Nickeljoke nickeljoke.vercel.app | — | — | Docs ↗ |
| OFAC SDN Check ofacs-test-ene3pdnjwq-uc.a.run.app | — | — | Docs ↗ |
| Outlylabs api.outlylabs.com | — | — | Docs ↗ |
| Ppv ppv.mypinata.cloud | — | — | Docs ↗ |
| Purple-peculiar-wolf-522 purple-peculiar-wolf-522.dev-mypinata.cloud | — | — | Docs ↗ |
| QuickNode x402.quicknode.com | — | — | Docs ↗ |
| Security-test-benign-x402 security-test-benign-x402.example.com | — | — | Docs ↗ |
| Smartchainfuture smartchainfuture.com | — | — | Docs ↗ |
| Staging staging.agenticinsights.com | — | — | Docs ↗ |
| Testgateway testgateway.mattober.com | — | — | Docs ↗ |
| Thebestagency thebestagency.dev-mypinata.cloud | — | — | Docs ↗ |
| X402-ai-starter x402-ai-starter.vercel.app | — | — | Docs ↗ |
| X402-ai-starter-flax x402-ai-starter-flax.vercel.app | — | — | Docs ↗ |
| X402-chat-tau x402-chat-tau.vercel.app | — | — | Docs ↗ |
| X402-dotnet x402-dotnet.azurewebsites.net | — | — | Docs ↗ |
| X402-managed-gateway-production x402-managed-gateway-production.up.railway.app | — | — | Docs ↗ |
| X402-motivate-api x402-motivate-api.vercel.app | — | — | Docs ↗ |
| X402-prompt-store x402-prompt-store.vercel.app | — | — | Docs ↗ |
| X402hackathon x402hackathon.mypinata.cloud | — | — | Docs ↗ |
| X402synthex api.x402synthex.xyz | — | — | Docs ↗ |
| Xcache api.xcache.io | — | — | Docs ↗ |
| Xryp84ndrb xryp84ndrb.execute-api.eu-north-1.amazonaws.com | — | — | Docs ↗ |
| x402-boj-macro-snapshot x402-boj-macro-snapshot.vercel.app | — | — | Docs ↗ |
| API | Provider | Category | |
|---|---|---|---|
| Ai42 ai42.onrender.com | — | — | Docs ↗ |
| App-sketchmat-29 app-sketchmat-29.localcan.dev | — | — | Docs ↗ |
| Banansen api.banansen.dev | — | — | Docs ↗ |
| Donation-template-test-2 donation-template-test-2.vercel.app | — | — | Docs ↗ |
| Elixir x402.elixir.games | — | — | Docs ↗ |
| Example api.example.com | — | — | Docs ↗ |
| Testing-x402-donation testing-x402-donation.vercel.app | — | — | Docs ↗ |
| Token-lemon-eta token-lemon-eta.vercel.app | — | — | Docs ↗ |
| X402-donation-test-dun x402-donation-test-dun.vercel.app | — | — | Docs ↗ |
| X402s x402s.bedev.hubble-rpc.xyz | — | — | Docs ↗ |
| API | Provider | Category | |
|---|---|---|---|
| Api agent.api.0x.org | — | — | Docs ↗ |
| Api-dev api-dev.agents.skillfulai.io | — | — | Docs ↗ |
| Dermi-znuq dermi-znuq.onrender.com | — | — | Docs ↗ |
| Gateway gateway.grapevine.fyi | — | — | Docs ↗ |
| PayAI Echo x402.payai.network | — | — | Docs ↗ |
| Questflow api-dev.intra-tls2.dctx.link | api-dev | real-time-data/news | Docs ↗ |
| SpyFu spyfu.x402.paysponge.com | www.spyfu.com | data | Docs ↗ |
| www.x402.org/protected x402.org | — | — | Docs ↗ |
| x402.goldrush.dev x402.goldrush.dev | — | — |