Discover / bimi-checker.underscoredone.com

BIMI Checker

■ Challenge detected

Checks one or more domains to see whether they are set up to show a brand logo next to emails in Gmail, Apple Mail, and Yahoo. It looks up the BIMI settings the domain has published, checks the logo file follows the required format, checks any logo certificate is valid and unexpired, and confirms the domain has strict enough email protection turned on. Returns a clear pass or fail per domain, plus a plain list of what is broken when something fails.

x402
Base
Solana
USDC

Listed price: $0.01
Challenge detected: 10 of the last 10 checks
Median response: 115 ms
Last checked: 17 Oct, 08:59 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://bimi-checker.underscoredone.com/check
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

1 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

POSThttps://bimi-checker.underscoredone.com/check$0.01Checks one or more domains to see whether they are set up to show a brand logo next to emails in Gmail, Apple Mail, and Yahoo. It looks up the BIMI settings the domain has published, checks the logo file follows the required format, checks any logo certificate is valid and unexpired, and confirms the domain has strict enough email protection turned on. Returns a clear pass or fail per domain, plus a plain list of what is broken when something fails.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 1 of 1 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/bimi-checker.underscoredone.com

Recent checks

28 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
17 Oct, 08:59 UTC	Challenge detected	402	157ms
16 Oct, 04:38 UTC	Challenge detected	402	112ms
14 Oct, 19:26 UTC	Challenge detected	402	97ms
13 Oct, 00:46 UTC	Challenge detected	402	102ms
11 Oct, 06:02 UTC	Challenge detected	402	82ms
9 Oct, 21:31 UTC	Challenge detected	402	114ms
8 Oct, 18:39 UTC	Challenge detected	402	118ms
7 Oct, 15:42 UTC	Challenge detected	402	123ms
6 Oct, 15:31 UTC	Challenge detected	402	204ms
28 Sept, 17:02 UTC	Challenge detected	402	115ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 08:59 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for BIMI Checker?

Its listed price is $0.01.

What payment terms does BIMI Checker advertise?

The listing advertises x402, Base, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is BIMI Checker listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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