the402 endpoint detail

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app.heinrichstech.com cdp ssl-info

https://app.heinrichstech.com/v1/cdp/ssl-info

payable, partial

BitBooth SSL Info: pay 0.002 USDC, get the SSL/TLS certificate details for any hostname:port — subject, issuer, validity window, SANs, SHA256 fingerprint, serial number, negotiated protocol and cipher, plus derived flags (valid, expired, selfSigned, daysUntilExpiry). Built on Node's built-in tls module with a 5s handshake cap. Rejects IPv4/IPv6 inputs and private/loopback hosts. Built for agents a

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse. It advertises 8 ways to pay and only 6 of them are usable.
Price
$0.002
Network
base
Pay to
0xDa2F35d283c42dd60B965322394bc658a5c1769F
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
201 ms
Payment options
6 usable of 8
Last checked
2026-08-10T09:12:31.235Z (1d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapp.heinrichstech.com%2Fv1%2Fcdp%2Fssl-info"