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SRV Autodiscover TCP Lookup
x402
SRV Autodiscover TCP 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 2026-10-18).
Resolves _autodiscover._tcp SRV DNS records for a domain via Cloudflare DoH, returning priority, weight, port, and target host for the autodiscover service.
Price / call$0.01
Success—
StatusUnknown
How this service works
AUTODISCOVER service discovery (_autodiscover._tcp.<domain>): SRV records with priority, weight, port and target host, from Cloudflare DoH. Tells a client where the domain's autodiscover service lives without guessing hosts. $0.01 per lookup.
Output
Returns the SRV record(s) for _autodiscover._tcp.<domain>, including priority, weight, port number, and target hostname, sourced from Cloudflare's DNS over HTTPS resolver. If no SRV record exists, an empty or negative response is returned.
Example use cases
Email client autodiscover configuration
“What host and port does microsoft365labs.com use for its autodiscover TCP service? I need the SRV record details to configure the email client.”
Verify autodiscover setup before deployment
“Can you check whether acmecorp.com has a valid _autodiscover._tcp SRV record set up, and tell me the priority, weight, port, and target?”
Diagnose email autodiscover failure
“Our users are having trouble with autodiscover on fabrikam.com — can you pull the _autodiscover._tcp SRV records so I can see where it's pointing?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/srv/autodiscover-tcp?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically discover the host and port of a domain's autodiscover service without manually guessing common hostnames. Ideal for email client configuration automation, IT provisioning workflows, or verifying autodiscover DNS setup. Prefer over general DNS resolvers when you specifically need the _autodiscover._tcp SRV record resolved via Cloudflare DoH.
Side effects
- Domain has no _autodiscover._tcp SRV record — returns empty result
- Invalid or malformed domain name — request fails with error
- Cloudflare DoH upstream unavailable — service may time out
- Domain does not exist (NXDOMAIN) — returns error or empty response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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