# Predge Biggest Bets — Whale Intelligence for Prediction Markets

> Predge Biggest Bets — Whale Intelligence for Prediction Markets is a paid API for AI agents from api.predge.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Returns the largest USD-denominated bets placed by whale traders on Polymarket within a specified lookback window, with wallet scores and win-rate metadata.

## Facts

- Endpoint: GET https://api.predge.io/v1/bets/biggest?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/predge-biggest-bets-whale-intelligence-for-prediction-markets-106a5673
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xg8ZgFPG97DowmEAN65q2

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 predge-biggest-bets-whale-intelligence-for-prediction-markets-106a5673
```

Example prompt: Pull the biggest whale bets on Polymarket from the last 24 hours — I want to see wallet scores, win rates, and which markets they're piling into.

## When to prefer this

Choose this endpoint when you need a ranked, ready-to-use list of the largest dollar-value trades on Polymarket with pre-computed wallet intelligence (score, win rate, insider heuristics) attached. Prefer it over raw blockchain queries when you want curated whale signals without building your own wallet scoring or on-chain indexing pipeline.

## Known failure modes

- Invalid window value returns a 400 error (only '24h' or '7d' accepted)
- No trades available for the window returns an empty trades array
- Payment failure (x402 protocol) returns 402 Payment Required
- Rate limiting or quota exceeded returns 429 Too Many Requests
- Upstream Polymarket data lag may cause stale or incomplete results

## How this service works

Real-time alerts on whale traders on Polymarket. Heuristic Insider Watch, wallet scoring 0–100, Bloomberg-style web terminal. Free plan included.

## Output

A JSON array of the largest Polymarket trades in the requested window, each including the wallet address, wallet score (0–100), 30-day win rate, bet side (yes/no), price, USD size, market title and slug, condition ID, transaction hash, category, and block timestamp. Also includes the window duration and data-quality flags (outcome_verified, insufficient_data).

## 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": {
      "window": {
       "enum": [
        "24h",
        "7d"
       ],
       "type": "string",
       "description": "Lookback window (default 24h)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "trades": [
   {
    "side": "yes",
    "price": 0.62,
    "wallet": "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8",
    "tx_hash": "0x6a7de5…",
    "category": "economics",
    "platform": "polymarket",
    "size_usd": 25400,
    "market_slug": "fed-rate-cut-september",
    "condition_id": "0x178a746e2b342c25b1d78d0f0d0ea77157c9b6d40b2e97ffbf827cd7f9994c39",
    "market_title": "Will the Fed cut rates in September?",
    "wallet_score": 81,
    "block_timestamp": "2026-07-17T09:41:02.000Z",
    "wallet_win_rate_30d": 0.67
   }
  ],
  "window": "24h",
  "window_hours": 24,
  "outcome_verified": false,
  "insufficient_data": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/predge-biggest-bets-whale-intelligence-for-prediction-markets-106a5673/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.predge.io](https://www.zero.xyz/host/api.predge.io/llms.txt)