Payments on Base + Solana
attester.dev has 3 x402 endpoints in our catalog. Right now: 1 caution, 2 avoid. 2 passed a real paid test: we paid the listed price and got what the listing promised. 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 |
|---|---|---|---|---|---|
| /spend-check | C | Caution | 54% | 10,017 ms | Yes |
| /judge | F | Avoid | 29% | 5,776 ms | – |
| /v1/package/exists | F | Avoid | 38% | 9,916 ms | Yes |
Be careful. 2 of attester.dev's endpoints are rated Avoid right now: they were down a lot, took a payment and didn't deliver, or changed payout wallet without explanation. Check the specific endpoint before paying it.
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.