# Twitter List Members

> Twitter List Members 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 the list of member accounts belonging to a specific Twitter/X list by list ID

## Facts

- Endpoint: GET https://twitter.surf.cascade.fyi/lists/:id/members
- 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-ce5bcf99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YIP2LJ1EMXsZUzEijB6g-

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-ce5bcf99
```

Example prompt: Can you pull all the members from Twitter list 1234567890? Page through all results if there are multiple pages.

## When to prefer this

Use this endpoint when you need to enumerate or audit the members of a specific Twitter/X list, build audience lists from curated Twitter lists, or monitor membership changes in a list over time. Prefer this over manually browsing Twitter or scraping, especially when you need programmatic, paginated access to list members.

## Known failure modes

- Invalid or non-existent list ID returns an error
- Payment failure (402) if USDC balance is insufficient
- List is private and not accessible returns authorization error
- Invalid cursor causes pagination to fail
- Rate limiting may return 429 errors

## How this service works

List members

## Output

A paginated list of Twitter user accounts that are members of the specified list, including user profile data and a cursor for fetching additional pages.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "pathParams": {
   "id": "1234567890"
  },
  "queryParams": {
   "cursor": "0"
  }
 }
}
```

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "cursor": {
       "type": "string",
       "description": "Pagination cursor"
      }
     }
    }
   },
   "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/twitter-surf-cascade-fyi-ce5bcf99/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)