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launchcheck-x402.fly.dev v1 reaction-check
https://launchcheck-x402.fly.dev/v1/reaction-check
answers 402
Review and stress-test launch messaging, landing pages, product announcements, pricing pages, changelogs, app-store listings, and marketing emails before publication. LaunchCheck evaluates copy through eight audience lenses, surfaces positioning and conversion friction, flags claims needing evidence, predicts likely reader questions, recommends concrete changes, and returns a fact-preserving rewri
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $1.00
- Network
- base
- Pay to
- 0x87F929c4eCac1556a507cE6b92eF95c52B28DBa4
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 109 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:26:03.578Z (7d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Flaunchcheck-x402.fly.dev%2Fv1%2Freaction-check"