the402 endpoint detail

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app.heinrichstech.com cdp dns

https://app.heinrichstech.com/v1/cdp/dns

payable, partial

BitBooth DNS: pay 0.002 USDC, get DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, CAA) for any hostname. Built on Node's built-in resolver with a 5s timeout cap. Rejects IP-address inputs and private/loopback hosts. Built for agents inspecting infra, debugging delivery, or pre-flighting a target.

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
75 ms
Payment options
6 usable of 8
Last checked
2026-08-10T09:12:32.252Z (1d ago)
Category
finance-crypto

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