# DNS TXT BIMI Record Lookup

> DNS TXT BIMI Record Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-29).

Retrieves the BIMI (Brand Indicators for Message Identification) TXT record at default._bimi for a given hostname

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/dns-txt-bimi?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-txt-bimi-record-lookup-4a0d2512
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PMNTpL3vUkM8v7XAeppy6

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dns-txt-bimi-record-lookup-4a0d2512 -d '<json body>'
```

Example prompt: Can you look up the BIMI TXT record at default._bimi for example.com and tell me what the v=BIMI1 value says?

## When to prefer this

Use this endpoint when you specifically need to retrieve and inspect the BIMI (Brand Indicators for Message Identification) TXT record for a domain to verify email logo/branding configuration. Prefer the sandbox variant (/v1/sandbox/dns-txt-bimi) for testing. Choose this over generic DNS lookup tools when you want a purpose-built, paid BIMI-specific resolver that reliably targets the default._bimi subdomain.

## Known failure modes

- Hostname does not have a default._bimi TXT record (NXDOMAIN or empty result)
- Hostname exceeds 253 characters or is empty — validation error
- DNS resolution failure or timeout for the target domain
- Record exists but does not start with v=BIMI1 — returned as-is without validation
- Malformed hostname input causing DNS query failure

## How this service works

Call when an agent needs TXT at default._bimi that starts with v=BIMI1. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-bimi first.

## Output

Returns the raw TXT record content found at default._bimi.<hostname>, expected to start with 'v=BIMI1', including any logo URI and authority evidence fields defined in the BIMI specification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "hostname": {
   "type": "string",
   "examples": [
    "example.com"
   ],
   "maxLength": 253,
   "minLength": 1,
   "description": "Public DNS hostname such as example.com. Not a URL, not an IP literal, and not a private name."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-txt-bimi-record-lookup-4a0d2512/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)