# DKIM Selector DNS Lookup

> DKIM Selector DNS Lookup is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Looks up a specified DKIM selector record under _domainkey in DNS for a given domain, returning the raw DNS data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-dkim-selector-check-it-administration?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dkim-selector-dns-lookup-e8ff58eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zFwx9P32vq2xUZ3qkRqV-

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 dkim-selector-dns-lookup-e8ff58eb -d '<json body>'
```

Example prompt: Can you look up the DKIM DNS record for the selector 'google' on the domain acme.com? I want to see what's published under _domainkey for that selector.

## When to prefer this

Use this endpoint when you need a quick, cheap DNS-level lookup of a specific DKIM selector for a domain — particularly for IT administration tasks, vendor screening, or email security audits. It is not a full email deliverability test and does not send email or check inbox existence; prefer it when you only need raw DKIM DNS data for a known selector and domain.

## Known failure modes

- Domain does not exist in DNS — NXDOMAIN response
- Selector not found under _domainkey — empty or missing TXT record
- Malformed domain input causes DNS query failure
- DNS timeout or resolver unavailability
- Selector string contains invalid characters

## How this service works

DKIM selector lookup for IT administration: Look up a supplied DKIM selector under _domainkey. DNS data only; does not send email or verify that an inbox exists.

## Output

Returns the raw DNS TXT record data found at the DKIM selector's _domainkey subdomain (e.g. mail._domainkey.example.com), including the public key, version tag, and any policy flags. Returns nothing or an error if the record does not exist.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "default": "example.com",
   "description": "Public DNS domain, e.g. example.com."
  },
  "selector": {
   "type": "string",
   "default": "default"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dkim-selector-dns-lookup-e8ff58eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)