# BlockRun.AI Polymarket Market Leaderboard

> BlockRun.AI Polymarket Market Leaderboard is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status unknown (last checked 2026-09-16).

Returns the leaderboard (top traders/positions) for a specific Polymarket prediction market identified by its condition ID

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/polymarket/leaderboard/market/:condition_id
- Price: $0.0085/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-polymarket-market-leaderboard-b33b33db
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iZLvfW7dTfQamgTEUtaSL

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-polymarket-market-leaderboard-b33b33db
```

Example prompt: Pull up the leaderboard for Polymarket market condition ID 0x1234abcd... so I can see which traders are ranked at the top and how much they've made.

## When to prefer this

Use this endpoint when you need trader performance rankings for a specific Polymarket prediction market and have the condition_id. Prefer this over general market listing endpoints when your goal is competitive analysis, identifying skilled traders, or monitoring your own rank within a market.

## Known failure modes

- Invalid or unknown condition_id returns 404 or empty result
- Market not found if the condition_id doesn't correspond to an active or historical Polymarket market
- Payment failure (x402) if USDC payment of $0.0085 is not properly attached
- Rate limiting if too many requests are made in quick succession
- Stale or delayed data if Polymarket API upstream is lagging

## How this service works

Get leaderboard for a specific market

## Output

Returns a ranked list of traders/participants for the specified Polymarket market, including position sizes, profit/loss figures, and relative rankings among all participants in that market.

## 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-ai-polymarket-market-leaderboard-b33b33db/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)