# BlockRun.AI Polymarket Cohort Performance Stats

> BlockRun.AI Polymarket Cohort Performance Stats is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns aggregated performance statistics (ROI, win rate, PnL, trade count, fees) for Polymarket trader cohorts such as ACTIVE_TRADER and WHALE

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/polymarket/cohorts/stats
- Price: $0.001/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-d96c8bd8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7FCPPSOD0eLeFs8BxPlgr

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-d96c8bd8
```

Example prompt: Can you pull the Polymarket cohort performance stats from BlockRun and show me how ACTIVE_TRADER and WHALE traders compare in terms of average ROI, win rate, and realized PnL?

## When to prefer this

Use this endpoint when you need high-level comparative benchmarks across Polymarket trader categories rather than data on individual wallets or specific markets. Ideal for understanding macro-level differences in trading style performance, profitability distributions, and fee dynamics across cohorts.

## Known failure modes

- Empty or missing cohort data if Polymarket data pipeline is stale
- HTTP 402 if payment not included or USDC balance insufficient
- HTTP 500 if upstream data aggregation fails
- Truncated or partial cohort list if some segments have insufficient data

## How this service works

Compare performance across trading style cohorts

## Output

A JSON object containing an array of cohort records, each with cohort_name (e.g. ACTIVE_TRADER, WHALE), avg_roi, avg_win_rate, avg_trades, avg_realized_pnl, median_realized_pnl, total_realized_pnl, total_volume, wallet_count, avg_fees_paid, total_fees_paid, avg_profit_factor, and profitable_wallet_pct — all aggregated over a given time window.

## Example request

```json
{
 "input": {
  "body": {}
 }
}
```

## 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-d96c8bd8/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)