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AgentShelf DKIM S2 Selector DNS TXT Lookup
x402
AgentShelf DKIM S2 Selector DNS TXT Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Retrieves the DKIM TXT record for the s2 selector at the given hostname (i.e., s2._domainkey.{hostname})
Price / call$0.003
Success—
StatusUnknown
How this service works
Call when an agent needs TXT at s2._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-s2 first.
Output
Returns the DNS TXT record value published at s2._domainkey.{hostname}, typically containing the DKIM public key and policy fields (v=DKIM1; k=rsa; p=...).
Example use cases
Verify DKIM email signing setup
“Check whether the s2 DKIM selector is properly configured for mailgun.com — I need the TXT record from s2._domainkey.mailgun.com.”
Email deliverability audit
“I'm auditing email authentication for acme.com. Can you fetch the DKIM TXT record for the s2 selector so I can see the public key being published?”
Debug DKIM selector mismatch
“Emails from newsletter.example.org are failing DKIM checks with the s2 selector — can you pull the current TXT record at s2._domainkey.newsletter.example.org so I can compare it to what's configured?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/dns-txt-dkim-s2?utm_source=zero.xyzWhen to prefer
Use this endpoint specifically when you need to retrieve the DKIM TXT record for the 's2' selector. If you need a different selector (e.g., s1, google, default), this endpoint will not be correct — each selector is a distinct DNS name. Prefer the free sandbox variant (/v1/sandbox/dns-txt-dkim-s2) for testing before paying.
Side effects
- Hostname does not exist in DNS — NXDOMAIN or empty response
- No TXT record at s2._domainkey.{hostname} — DKIM selector not configured
- Invalid or malformed hostname input
- DNS resolution timeout or transient network error
- Payment failure via x402 protocol
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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