← All endpoints
x402-echo-service.fly.dev api echo
https://x402-echo-service.fly.dev/api/echo
answers 402
Store a message and receive a UUID handle for retrieval
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0xcB399BBed205aE963AB2F5Cc5Fa1B3c1Fba7f916
- Spec dialect
- v1 (declares x402Version 1)
- Transport
- JSON response body
- HTTP method
- POST
- Response latency
- 119 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:35:44.622Z (1d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-echo-service.fly.dev%2Fapi%2Fecho"