the402 endpoint detail

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bimi-checker.underscoredone.com check

https://bimi-checker.underscoredone.com/check

payable

Checks one or more website addresses to see if they are properly set up to show a brand logo next to emails in inboxes like Gmail, Apple Mail, and Yahoo. It looks up the special settings the domain has published, checks that the logo picture follows the required format, checks that a security certificate for the logo (if any) is valid and not expired, and confirms the domain has strict enough emai

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
144 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:10:48.961Z (1d ago)
Category
other

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