# Surf Twitter - User Mentions

> Surf Twitter - 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 2026-09-09).

Fetches a list of recent mentions (tweets that tag a given user) from Twitter/X, billed per call via x402 micropayments.

## Facts

- Endpoint: GET https://twitter.surf.cascade.fyi/users/%7Bref%7D/mentions
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/surf-twitter-user-mentions-b45cb8df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H-LRXOhvWx6lbMetY9ne7

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 surf-twitter-user-mentions-b45cb8df
```

Example prompt: Can you pull the most recent Twitter mentions for the account @elonmusk so I can see who has been tagging them lately?

## When to prefer this

Use this endpoint when you need pay-per-use, no-subscription access to Twitter/X mention data for a specific user, especially in agent workflows where you only occasionally need mention lookups and want to avoid committing to a monthly Twitter API plan. Prefer this over direct Twitter API access when you are already using x402 micropayment infrastructure.

## Known failure modes

- Invalid or non-existent user reference returns empty data or 404
- Payment failure via x402 returns 402 Payment Required with no data
- Rate limiting by the underlying Twitter API returns an error response
- Private/suspended account may return no results or an access error
- Malformed user ref parameter may cause a 400 Bad Request

## How this service works

Pay-per-use Twitter/X data API with x402 micropayments.

## Output

A JSON object containing an array of mention tweets (each with tweet ID, text, and author username), plus pagination metadata including result count and whether more pages are available.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "id": "123",
    "text": "@user mentioned you",
    "author": {
     "username": "user1"
    }
   }
  ],
  "meta": {
   "result_count": 20,
   "has_next_page": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/surf-twitter-user-mentions-b45cb8df/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)