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DNS TXT DomainKey Lookup
x402
DNS TXT DomainKey Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Retrieves the raw TXT DNS record at the _domainkey subdomain for a given hostname, used for DKIM email authentication lookups
Price / call$0.002
Success—
StatusUnknown
How this service works
Call when an agent needs TXT at _domainkey, unfiltered. Selector SKUs use selector._domainkey. Send JSON {"hostname":"example.com"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/dns-txt-domainkey first.
Output
Returns the raw, unfiltered TXT DNS record content found at the _domainkey subdomain (or selector._domainkey) of the given hostname, typically containing DKIM public key data such as v=DKIM1 key entries.
Example use cases
DKIM key verification for domain
“Look up the raw _domainkey TXT record for mailgun.org so I can confirm what DKIM public key they have published.”
Selector-based DKIM lookup
“Get the DNS TXT record at google._domainkey for gmail.com — I need to see the full unfiltered selector record.”
Email deliverability audit
“Fetch the _domainkey TXT record for my company domain acme.com so I can audit our DKIM email authentication setup.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/dns-txt-domainkey?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the raw, unfiltered _domainkey TXT DNS record for a domain and want a simple paid API call without managing DNS resolution infrastructure. Prefer the free sandbox POST /v1/sandbox/dns-txt-domainkey endpoint first if available. Best suited for DKIM key inspection, email authentication audits, or domain configuration verification at $0.002 USDC per call.
Side effects
- Domain does not have a _domainkey TXT record — returns empty or not-found result
- Hostname is malformed or exceeds 253 characters — input validation error
- DNS resolution timeout or upstream DNS failure — service error
- Selector prefix not properly formatted — may return no record
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hostname | string | Public DNS hostname such as example.com. Not a URL, not an IP literal, and not a private name. |
Tags
x402
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