Payments on Base + Solana
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preflight402.com has 8 x402 endpoints in our catalog. Right now: 8 caution. Best grade: C.
Best grades first. Open an endpoint for its full history: uptime, price and payout-wallet changes, and paid-test results with signed receipts.
| Endpoint | Grade | Verdict | Uptime (7 days) | Response time | Paid test passed |
|---|---|---|---|---|---|
| /v1/ai-act/obligations | C | Caution | 100% | 841 ms | – |
| /v1/btc/tx-context | C | Caution | 100% | 766 ms | – |
| /v1/btc/tx-inspect | C | Caution | 99% | 748 ms | – |
| /v1/cve/check | C | Caution | 100% | 737 ms | – |
| /v1/deps/check | C | Caution | 100% | 781 ms | – |
| /v1/deps/version-check | C | Caution | 99% | 712 ms | – |
| /v1/evm/tx-inspect | C | Caution | 99% | 740 ms | – |
| /v1/legal/cite-check | C | Caution | 99% | 721 ms | – |
preflight402.com's endpoints work in monitoring, but delivery isn't confirmed by a paid test yet, so they're rated Caution. Set a low spend limit, or have your agent call check_payment with the exact quote first.
Lumière PayCheck checks every endpoint about every 30 minutes: does it answer with a valid x402 quote, is the price and payout wallet stable. Then we pay some of them for real and check the response against what the listing promised. Failures are re-tested before they count. How it works.
Yes, for free. Call check_payment (API or MCP) with the endpoint, amount and payTo from the 402 quote, and pay only if it returns allow. Check an endpoint now.