# Twitter Surf - User Mentions

> Twitter Surf - User Mentions is a paid API for AI agents from twitter.surf.cascade.fyi, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Retrieves a list of tweets that mention a specific Twitter/X user, identified by their reference handle or ID

## Facts

- Endpoint: POST https://twitter.surf.cascade.fyi/users/:ref/mentions
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/twitter-surf-cascade-fyi-2a0970fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XVycmu9ug0lTXgBfH2hxW

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 twitter-surf-cascade-fyi-2a0970fd -d '<json body>'
```

Example prompt: Can you pull the latest mentions for the Twitter user @elonmusk so I can see who has been tagging them recently?

## When to prefer this

Use this endpoint when you need to programmatically retrieve tweets mentioning a specific Twitter/X user, especially in automated monitoring workflows or when building social listening features. Prefer this over general Twitter search when you are focused on a single user's mention timeline with cursor-based pagination support.

## Known failure modes

- Invalid or non-existent user reference returns 404 or empty result
- Rate limiting or payment failure returns 402 or 429
- Invalid pagination cursor returns error or unexpected results
- User account suspended or private may return empty or restricted results

## How this service works

User mentions

## Output

Returns a paginated list of tweets that mention the specified user, including tweet content and associated metadata. A cursor field is provided for fetching subsequent pages of results.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "pathParams": {
   "ref": "twitter"
  },
  "queryParams": {
   "cursor": ""
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/twitter-surf-cascade-fyi-2a0970fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twitter.surf.cascade.fyi](https://www.zero.xyz/host/twitter.surf.cascade.fyi/llms.txt)