# BlockRun Polymarket Market Top Holders

> BlockRun Polymarket Market Top Holders is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status unknown (last checked 2026-10-12).

Fetches the top token holders for a specific Polymarket prediction market contract address

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/polymarket/market/0x0000000000000000000000000000000000000000000000000000000000000000/top-holders?utm_source=zero.xyz
- Price: $0.0085/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-polymarket-market-top-holders-1de62738
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RXxqL6ogL0U3ypvxKq5fz

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-polymarket-market-top-holders-1de62738
```

Example prompt: Who are the top holders for the Polymarket market at contract address 0xabc123...? I want to see which wallets control the biggest positions in that market.

## When to prefer this

Use this endpoint when you need on-chain holder distribution data specifically for a Polymarket prediction market contract. Prefer this over general blockchain explorers when you want structured, ranked holder data for a prediction market without parsing raw chain data yourself. Best when you already have the Polymarket market contract address.

## Known failure modes

- Invalid or zero-address contract address returns empty or error response
- Contract address not found on Polymarket returns no data
- Rate limiting or payment failure returns 402 payment required
- Malformed address format causes request error
- Market with no holders returns empty list

## 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. 115 models and 100 data and tool APIs.

## Output

Returns a ranked list of the top token holders for the specified Polymarket prediction market, including wallet addresses and their respective holdings or position sizes within that market contract.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "query": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-polymarket-market-top-holders-1de62738/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)