# dns-lookup-watch

> dns-lookup-watch is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Runs a DNS lookup for a domain, compares it to the previous result (stored up to 90 days), and returns whether anything changed along with before/after field diffs.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/dns
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-lookup-watch-7b0cb506
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_73DX89zRMMZ1DUYk2f0KP

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-lookup-watch-7b0cb506
```

Example prompt: Check if the DNS records for example.com have changed since the last time you looked — tell me what's different now versus before, and whether anything actually changed.

## When to prefer this

Choose this endpoint when you need change detection semantics built in — you want to know not just the current DNS state but whether it differs from a previous snapshot, and exactly what changed. It is ideal for scheduled monitoring agents that poll on a cadence and need diff-aware responses without maintaining their own state store. Prefer it over raw DNS lookup APIs when your agent needs to trigger actions only on change events.

## Known failure modes

- Domain not found or invalid domain name returns an error
- First-time call for a domain has no previous result to compare against, so 'changed' may be indeterminate or false by default
- Payment failure (x402) if USDC balance is insufficient
- Network or DNS resolution timeout
- Stale comparison if last check was more than 90 days ago (history expired)

## How this service works

Change watch for dns lookup: runs the check and compares it with the result from your previous call for the same domain (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when dns lookup for any domain in one call changes. $0.01 per check.

## Output

Returns the current DNS lookup answer for the domain, a boolean 'changed' flag indicating whether anything differs from the previous call, a list of exactly which fields changed with their before and after values, and a timestamp of when the result was last seen. Previous results are retained for 90 days.

## 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-lookup-watch-7b0cb506/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)