# ExchangeRebel Trademark Watch Changes

> ExchangeRebel Trademark Watch Changes is a paid API for AI agents from exchangerebel.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-13).

Retrieves recent changes and updates for a monitored trademark watch entry

## Facts

- Endpoint: GET https://exchangerebel.com/toll/trademarks/watch/tmw_0000000000000001/changes?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/exchangerebel-trademark-watch-changes-9430f183
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H2GHsYsMekVRUc0NXf6Bz

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 exchangerebel-trademark-watch-changes-9430f183
```

Example prompt: Can you check if there have been any recent changes or updates to my trademark watch entry tmw_0000000000000001?

## When to prefer this

Use this endpoint when you need to poll or check for updates on a specific trademark watch entry by its ID, particularly for automated IP monitoring workflows or legal compliance tracking. Prefer this over generic trademark search when you already have a watch ID and want incremental change data rather than full trademark records.

## Known failure modes

- Watch ID not found or invalid — returns 404 or empty result
- Payment not completed via x402 protocol — returns 402 Payment Required
- Unauthorized access without valid credentials — returns 401
- No changes available yet for this watch ID — returns empty changes array
- Rate limiting if called too frequently — returns 429

## How this service works

trademark-watch-changes

## Output

Returns a list of changes or events associated with the specified trademark watch, including status updates, new filings, oppositions, or other relevant developments tracked under the given watch ID.

## 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"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/exchangerebel-trademark-watch-changes-9430f183/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from exchangerebel.com](https://www.zero.xyz/host/exchangerebel.com/llms.txt)