# BlockRun Social — X/Twitter Followers Lookup

> BlockRun Social — X/Twitter Followers Lookup is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status unknown (last checked 2026-10-19).

Fetches the list of followers for a given X (Twitter) user handle, routed and billed via BlockRun's crypto payment layer

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/social/user/followers?utm_source=zero.xyz
- Price: $0.0085/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-social-x-twitter-followers-lookup-bca242dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RZ8fGnFwO3toHIhTJG-_D

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 blockrun-social-x-twitter-followers-lookup-bca242dc
```

Example prompt: Can you pull the full followers list for the X account @vitalikbuterin so I can analyze who's following him?

## When to prefer this

Choose this endpoint when you need on-chain micropayment-settled access to X follower data routed through BlockRun's AI payment infrastructure, especially if you are building an agent that needs crypto-native billing (USDC on Base or Solana) without managing OAuth tokens or X API credentials directly. Best for AI agents already integrated with the x402 payment protocol.

## Known failure modes

- Missing or invalid handle parameter returns an error
- Private or suspended X accounts may return no followers or an access error
- Rate limits from the underlying X API may cause failures or incomplete results
- Payment failure or insufficient USDC balance blocks the request
- Handle not found on X returns empty or 404-style response

## How this service works

BlockRun lets AI agents use money well: pay for results, not for seats or subscriptions, and put every cent on the model or tool that actually does the job.

## Output

Returns a list of follower accounts associated with the specified X (Twitter) handle, likely including user identifiers, usernames, and profile metadata for each follower. The response is billed at $0.0085 USDC per call, settled on Base or Solana via BlockRun's x402 payment layer.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "handle": {
   "type": "string",
   "description": "Required query param"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-social-x-twitter-followers-lookup-bca242dc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockrun.ai](https://www.zero.xyz/host/blockrun.ai/llms.txt)