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launchcheck-x402.fly.dev x402 API: grades and paid tests

launchcheck-x402.fly.dev has 2 x402 endpoints in our catalog. Right now: 2 caution. Best grade: C.

2Caution
0Passed a paid test

Every endpoint on launchcheck-x402.fly.dev

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/proposal-check/deep	C	Caution	97%	634 ms	–
/v1/reaction-check	C	Caution	100%	669 ms	–

About launchcheck-x402.fly.dev

Is launchcheck-x402.fly.dev safe to pay?

launchcheck-x402.fly.dev'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.

How are these grades made?

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.

Can my agent check launchcheck-x402.fly.dev before paying?

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.

Do you run launchcheck-x402.fly.dev? Prove your endpoints work: get tested, check your setup, or add endpoints we're missing. Every seller's results are public, here and in the full catalog.