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finance-calculators.x402tookit.com has 9 x402 endpoints in our catalog. Right now: 9 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 |
|---|---|---|---|---|---|
| /break-even | C | Caution | 93% | 527 ms | – |
| /compound-interest | C | Caution | 93% | 506 ms | – |
| /loan-payment | C | Caution | 94% | 528 ms | – |
| /mortgage-affordability | C | Caution | 93% | 546 ms | – |
| /npv-irr | C | Caution | 92% | 534 ms | – |
| /pay-convert | C | Caution | 93% | 570 ms | – |
| /roi-cagr | C | Caution | 92% | 541 ms | – |
| /rule-of-72 | C | Caution | 91% | 550 ms | – |
| /savings-goal | C | Caution | 91% | 535 ms | – |
finance-calculators.x402tookit.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.