# Twitter User Search

> Twitter User Search 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).

Search for Twitter users by keyword and return matching user profiles

## Facts

- Endpoint: GET https://twitter.surf.cascade.fyi/users/search
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Success rate: 63% of calls made through Zero
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/twitter-surf-cascade-fyi-7ff77641
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U9upTbTnhKr2qCpnCIaPN

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-7ff77641
```

Example prompt: Search Twitter for users matching the keyword 'openai' to find relevant accounts related to that topic. Use the /users/search endpoint with q=openai.

## When to prefer this

Use this endpoint when you need to discover Twitter users by name, topic, or keyword rather than fetching a specific known user's profile. It is the right choice for user discovery workflows, competitive analysis, or finding influencers in a space.

## Known failure modes

- Missing required 'q' query parameter returns 400 error
- Empty or no results for obscure keywords
- Rate limiting or payment failure returns 402
- Twitter API upstream errors may cause 500 responses
- Very common keywords may return too many results to be actionable

## How this service works

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

## Output

A list of Twitter user objects matching the search keyword, likely including usernames, display names, follower counts, bios, and other public profile metadata.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "q": "artificial intelligence"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "name": "Elon Musk",
    "username": "elonmusk",
    "followers_count": 100000
   }
  ],
  "meta": {
   "result_count": 10,
   "has_next_page": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/twitter-surf-cascade-fyi-7ff77641/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)