the402 endpoint detail

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curl-http-request.underscoredone.com curl

https://curl-http-request.underscoredone.com/curl

answers 402

Send an HTTP request to any URL from our servers and receive the full response — including the status code, all response headers, and the body content. Supports GET, POST, PUT, PATCH, DELETE, and HEAD. Automatically follows up to 3 redirects. Useful for testing endpoints, verifying servers are responding correctly, debugging redirect chains, or fetching raw data without needing a local setup.

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
0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
169 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:21:52.202Z (1h ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcurl-http-request.underscoredone.com%2Fcurl"