# agentshelf.syntexa.ch DNS TXT DKIM Google Lookup

> agentshelf.syntexa.ch DNS TXT DKIM Google Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-01).

Looks up the TXT record at google._domainkey.{hostname} to retrieve the Google DKIM public key for a given domain.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/dns-txt-dkim-google?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-dns-txt-dkim-google-lookup-be8bf9b6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hir9SdAVITh0D_6VUArKY

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 agentshelf-syntexa-ch-dns-txt-dkim-google-lookup-be8bf9b6 -d '<json body>'
```

Example prompt: Look up the Google DKIM TXT record for the domain example.com — I need the value at google._domainkey.example.com.

## When to prefer this

Use this endpoint when you specifically need to retrieve the Google DKIM TXT record (google._domainkey selector) for a given domain, such as verifying Google Workspace email authentication or auditing DKIM DNS configuration. Prefer the free sandbox endpoint (/v1/sandbox/dns-txt-dkim-google) for testing. If you need a different DKIM selector (not 'google'), this endpoint is not appropriate — the selector is fixed to 'google._domainkey'.

## Known failure modes

- No DNS TXT record exists at google._domainkey.{hostname} — record not found or DKIM not configured
- Invalid or malformed hostname input rejected
- DNS resolution timeout or upstream DNS failure
- Hostname exceeds 253 characters or is empty — validation error

## How this service works

Call when an agent needs TXT at google._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-google first.

## Output

Returns the raw TXT record string found at google._domainkey.{hostname}, which contains the Google DKIM public key (typically a 'v=DKIM1; k=rsa; p=...' value), or an indication that no such record exists.

## 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/agentshelf-syntexa-ch-dns-txt-dkim-google-lookup-be8bf9b6/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)