# Syntexa AgentShelf DNS SRV IMAPS Lookup

> Syntexa AgentShelf DNS SRV IMAPS Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-02).

Resolves SRV records at _imaps._tcp.{hostname} to discover IMAP-over-TLS server configuration for a given domain

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/dns-srv-imaps?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/syntexa-agentshelf-dns-srv-imaps-lookup-aca72828
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a4H7Apwui6TN-LJtnbYW0

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 syntexa-agentshelf-dns-srv-imaps-lookup-aca72828 -d '<json body>'
```

Example prompt: Can you look up the IMAP over TLS SRV DNS record for gmail.com so I know what server and port to use for secure IMAP connections?

## When to prefer this

Use this endpoint when an agent needs to programmatically discover the IMAP-over-TLS server configuration for a domain via standard DNS SRV records (RFC 6186), particularly when automating email client setup, onboarding flows, or mail server validation. Prefer the unpaid sandbox endpoint (POST /v1/sandbox/dns-srv-imaps) for testing; use this paid endpoint for production lookups.

## Known failure modes

- Domain has no _imaps._tcp SRV record — returns empty or NXDOMAIN response
- Invalid or malformed hostname input — validation error
- DNS resolution timeout or upstream failure
- Hostname exceeds 253 character limit

## How this service works

Call when an agent needs SRV records at _imaps._tcp.{hostname} for IMAP over TLS. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-imaps first.

## Output

Returns the DNS SRV record(s) found at _imaps._tcp.{hostname}, typically including priority, weight, port, and target hostname for the IMAP-over-TLS mail server.

## 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/syntexa-agentshelf-dns-srv-imaps-lookup-aca72828/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)