# BlockRun.AI Token Holders

> BlockRun.AI Token Holders is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0075/call, status unknown (last checked 2026-09-14).

Returns the top token holders with their balances for a specified token contract on a given blockchain.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/token/holders
- Price: $0.0075/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-token-holders-ea295122
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e0goX3CYYqd6gNv-crMYg

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-ai-token-holders-ea295122
```

Example prompt: Who are the top token holders for contract address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — show me the biggest wallet balances?

## When to prefer this

Use this endpoint when you need to identify the largest holders (whales) of a specific on-chain token by contract address and chain, particularly for EVM-compatible chains. Prefer this over general blockchain explorers when you need structured, ranked holder data via API.

## Known failure modes

- Invalid or unsupported chain identifier returns an error
- Invalid or non-existent token contract address returns empty or error response
- Token with no holders or very new token may return empty results
- Rate limiting or payment failure returns 402 or 429 status

## How this service works

Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 103 models and 100 data and tool APIs.

## Output

A ranked list of the top token holders for the specified contract, including wallet addresses and their corresponding token balances, ordered by holding size.

## Example request

```json
{
 "chain": "ethereum",
 "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
```

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-token-holders-ea295122/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)