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crypto-math.x402tookit.com has 10 x402 endpoints in our catalog. Right now: 1 proceed, 9 caution. 1 passed a real paid test: we paid the listed price and got what the listing promised. Best grade: B.
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 |
|---|---|---|---|---|---|
| /ec-params | B | Proceed | 92% | 478 ms | Yes |
| /check-digits | C | Caution | 91% | 527 ms | – |
| /crt | C | Caution | 92% | 523 ms | – |
| /encoding | C | Caution | 93% | 489 ms | – |
| /entropy | C | Caution | 93% | 525 ms | – |
| /gcd-extended | C | Caution | 93% | 514 ms | – |
| /mod-inverse | C | Caution | 93% | 499 ms | – |
| /mod-pow | C | Caution | 93% | 493 ms | – |
| /prime | C | Caution | 92% | 492 ms | – |
| /rsa-arith | C | Caution | 92% | 495 ms | – |
1 of crypto-math.x402tookit.com's endpoints is rated Proceed: reliable in monitoring with a stable price and payout wallet, and the best ones delivered in a real paid test. Grades are per endpoint, so look up the one your agent is about to pay.
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.