# dns-svcb-via-cloudflare

> dns-svcb-via-cloudflare is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Looks up SVCB DNS records for a domain using Cloudflare 1.1.1.1 (DNS over HTTPS) and returns the records, TTL, response code, DNSSEC validation status, and resolver answer time.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/svcb/via/cloudflare?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-svcb-via-cloudflare-0f3c0588
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_29twd5hVw0K5XJTx6g9ff

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 dns-svcb-via-cloudflare-0f3c0588
```

Example prompt: Can you look up the SVCB DNS records for example.com using Cloudflare's 1.1.1.1 resolver and tell me the records, TTL, response code, and whether DNSSEC was validated?

## When to prefer this

Use this endpoint when you specifically need SVCB record data as seen by Cloudflare 1.1.1.1, particularly when comparing resolver behavior, debugging propagation lag, or checking whether Cloudflare is filtering or returning split-horizon answers. Prefer this over generic DNS tools when DNSSEC validation status and resolver answer timing are important to your analysis.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with empty records
- Resolver upstream failure — returns SERVFAIL response code
- No SVCB records exist for the domain — returns NOERROR with empty answer section
- Invalid or malformed domain name input — may return error or SERVFAIL
- Cloudflare DoH endpoint temporarily unreachable — request may time out or return an error

## How this service works

SVCB records for a domain as answered by Cloudflare 1.1.1.1 (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to spot propagation lag, filtering or split-horizon answers. $0.01 per lookup.

## Output

Returns the SVCB resource records for the queried domain, their TTL, the DNS response code (NOERROR, NXDOMAIN, or SERVFAIL), a boolean indicating whether Cloudflare validated DNSSEC for the response, and the resolver's answer time in milliseconds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-svcb-via-cloudflare-0f3c0588/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)