# BlockRun.AI Batch Wallet Label Lookup

> BlockRun.AI Batch Wallet Label Lookup is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0075/call, status unknown (last checked 2026-09-13).

Returns blockchain wallet labels (CEX, Whale, Bridge, MEV, etc.) for a batch of addresses in a single call.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/wallet/labels/batch
- Price: $0.0075/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-9e0fad65
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UOteQuM-v75Sl9x6VAqxH

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-9e0fad65
```

Example prompt: Can you label these wallet addresses for me — 0xabc123, 0xdef456, 0x789ghi — and tell me which ones are CEX wallets, whales, bridges, or MEV bots?

## When to prefer this

Use this endpoint when you need to classify multiple blockchain wallet addresses simultaneously by entity type (CEX, Whale, Bridge, MEV). Prefer it over single-address lookups when processing transaction lists, auditing DeFi interactions, or enriching on-chain data pipelines where batch efficiency matters.

## Known failure modes

- Missing or empty 'addresses' query parameter returns an error
- Malformed or non-checksummed addresses may return no label or an error
- Unknown addresses return empty or null labels rather than an error
- Rate limiting or payment failure (402) if x402 payment is not provided
- Batch too large may result in timeout or partial results

## 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

Returns a mapping of each submitted wallet address to one or more labels such as CEX, Whale, Bridge, MEV, or other entity classifications recognized on-chain.

## Example request

```json
{
 "addresses": "0x1234567890123456789012345678901234567890,0x0987654321098765432109876543210987654321,0xabcdefabcdefabcdefabcdefabcdefabcdefabcd"
}
```

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-9e0fad65/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)