Tool detail
BIMI Checker
Checks whether one or more domains are correctly configured to show a BIMI brand logo in Gmail, Apple Mail and Yahoo.
Categories: Government public data
Use when
- check if a domain's BIMI brand logo will display in inboxes
- diagnose why an email brand logo isn't showing
- audit BIMI setup (logo format, certificate, DMARC strictness) for domains
Not for
- not a general DMARC/SPF/DKIM health check - BIMI-specific
Inputs
POST JSON body: { domains: array of up to 10 domain strings (no scheme) } (required); selector (string, default 'default'), check_vmc (boolean) (optional)
Inputs undocumented: array without items
Endpoint
- Method
POST- URL
https://bimi-checker.underscoredone.com/check
Payment
- Protocol
- x402
- Listed price
- 0.01 USDC per call on Base
- Payment method
- exact
- Network
- eip155:8453
- Asset
- 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.
Source
- Directory
- Coinbase x402 Bazaar
- Record
- POST https://bimi-checker.underscoredone.com/check
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z