# Polymarket Wallet Win-Rate Leaderboard

> Polymarket Wallet Win-Rate Leaderboard is a paid API for AI agents from x402-api-production-266e.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns top Polymarket wallets ranked by realized win rate over a 7-day or 30-day window, filtered to wallets with at least 10 trades and one resolved market outcome.

## Facts

- Endpoint: GET https://x402-api-production-266e.up.railway.app/v1/wallets/leaderboard
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-wallet-win-rate-leaderboard-67429d55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E9jSiPL-MAzhdMwlfJRxf

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 polymarket-wallet-win-rate-leaderboard-67429d55
```

Example prompt: Show me the top 20 Polymarket wallets ranked by win rate over the last 7 days, including their Predge scores and how many resolved trades they've made.

## When to prefer this

Use this endpoint when you need a ranked list of Polymarket traders by historical accuracy on resolved markets, rather than a single wallet profile or whale trade activity feed. Prefer this over the wallet profile endpoint when you want comparative rankings across many addresses, and over the whale digest when you care about win rate rather than raw volume.

## Known failure modes

- Dataset too young or insufficient resolved markets → returns {insufficient_data: true, reason: '...'} instead of a leaderboard
- Invalid window parameter (not '7d' or '30d') → likely 400 or default fallback
- Limit out of range (< 1 or > 100) → validation error or clamped value
- Payment not attached → 402 Payment Required, endpoint requires $0.01 USDC per call

## How this service works

Polymarket whale trades and smart-money signals from the Predge tracking pipeline, sold per-call over the x402 payment protocol. No API keys, no accounts.

## Output

A ranked list of up to 100 wallet entries, each containing: wallet address, Predge score (0-100 or null), win_rate (fraction of decided trades correctly predicted), decided_trades, trades_count, total_volume_usd, and avg_position_usd. Returns an object with insufficient_data: true and a reason string when the dataset lacks enough resolved markets.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "number",
       "description": "Max wallets to return (1-100, default 50)"
      },
      "window": {
       "enum": [
        "7d",
        "30d"
       ],
       "type": "string",
       "description": "Ranking window (default 30d)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "window": "30d",
  "wallets": [
   {
    "score": 81,
    "address": "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8",
    "win_rate": 0.71,
    "trades_count": 24,
    "decided_trades": 17,
    "avg_position_usd": 17166.67,
    "total_volume_usd": 412000
   }
  ],
  "min_trades": 10,
  "insufficient_data": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-wallet-win-rate-leaderboard-67429d55/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-api-production-266e.up.railway.app](https://www.zero.xyz/host/x402-api-production-266e.up.railway.app/llms.txt)