# Domain Expiration Date Watch

> Domain Expiration Date 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).

Monitors a domain's expiration date and notifies when it changes compared to the last recorded check, returning before/after field diffs.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/domain-expiry
- 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/domain-expiration-date-watch-fb658961
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QeZ5-uC10ZHi_VPl8INHC

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 domain-expiration-date-watch-fb658961
```

Example prompt: Keep an eye on acmecorp.com's expiration date and let me know if anything changes — especially if the expiry date shifts, the registrar changes, or the number of days until it expires drops unexpectedly.

## When to prefer this

Choose this endpoint when you need to detect changes in domain expiration metadata over time rather than just a one-time lookup. It is ideal for scheduled agent workflows that need to track whether a domain's expiry date, registrar, or registration status has shifted since a previous check, without storing that state yourself. Prefer it over a plain WHOIS lookup when the goal is change detection with before/after diffs and last-seen timestamps.

## Known failure modes

- Domain not found in WHOIS — returns error or null expiration data
- Rate limit or payment failure — returns 402 or 429 status
- No previous check stored (first call) — returns current data with changed=false and no diff
- Domain uses privacy protection — registrar or dates may be obscured
- WHOIS server timeout — returns error with no comparison result
- Malformed or invalid domain input — returns validation error

## How this service works

Change watch for domain expiration date: 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 when does this domain expire? returns the domain expiration date, days until expiry, registration date, registrar and st changes. $0.01 per check.

## Output

Returns the current domain expiration details (expiration date, days until expiry, registration date, registrar, status) plus a 'changed' boolean, a list of which specific fields changed with their before and after values, and a timestamp of when the data was last seen. Comparison state is 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/domain-expiration-date-watch-fb658961/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)