# DKIM Selector dkim1 Lookup

> DKIM Selector dkim1 Lookup is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Looks up and parses the DKIM public key for the 'dkim1' selector of a given domain, returning key type, length, testing flag, and revocation status.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/dkim/dkim1?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dkim-selector-dkim1-lookup-c42b3068
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xrdaiBVpgu7XnGaILL4af

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-dkim1-lookup-c42b3068
```

Example prompt: Check the DKIM dkim1 selector for example.com — I want to know if the key is valid, what type and length it is, and whether it's been revoked.

## When to prefer this

Use this endpoint when you specifically need to inspect the 'dkim1' DKIM selector for a domain — it is purpose-built to parse and validate exactly that selector. Prefer it over generic DNS TXT lookups when you need structured output including key type, length, testing flag, and revocation status rather than a raw TXT string.

## Known failure modes

- Domain does not have a dkim1._domainkey TXT record — returns not found or empty result
- DNS resolution failure via Cloudflare DoH — returns a DNS error
- Malformed TXT record that cannot be parsed — returns a parsing error
- Domain does not exist — returns NXDOMAIN
- Payment not processed (x402) — returns 402 Payment Required

## How this service works

DKIM public key for selector "dkim1" of a domain: looks up dkim1._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the dkim1 selector will verify. $0.01 per lookup.

## Output

Returns parsed details from the dkim1._domainkey.<domain> TXT record including the DKIM version (v=), key type (k=, e.g. rsa or ed25519), public key length in bits, whether the domain is in testing mode, and whether the key is revoked (empty p= field). Confirms whether mail signed with the dkim1 selector will successfully verify.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dkim-selector-dkim1-lookup-c42b3068/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)