# Predge Whale Data – Wallet Comparison

> Predge Whale Data – Wallet Comparison is a paid API for AI agents from x402-api-production-266e.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Side-by-side comparison of 2–10 Polymarket wallets, including Predge scores, win rates, modeled PnL, top categories, and shared market overlap.

## Facts

- Endpoint: GET https://x402-api-production-266e.up.railway.app/v1/wallets/compare
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/predge-whale-data-wallet-comparison-8396c201
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dh134O5pliGqwJpehcYtX

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-whale-data-wallet-comparison-8396c201
```

Example prompt: Compare these three Polymarket wallets side by side and tell me who has the better Predge score, win rate, and modeled PnL, and which markets they all traded: 0xabc123…, 0xdef456…, 0x789ghi….

## When to prefer this

Use this endpoint when you need to directly compare multiple Polymarket traders at once, assess relative skill levels, or identify shared market exposure across wallets. Prefer this over the single-wallet profile endpoint when the user wants a benchmarking or ranking view across 2–10 addresses simultaneously.

## Known failure modes

- Fewer than 2 or more than 10 addresses provided — request rejected
- Malformed address (non-0x format) — validation error
- All wallets unknown to dataset — all returned with found:false
- Network/service unavailability on Railway deployment — 5xx error
- Payment not included or insufficient — 402 Payment Required

## 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

Returns a per-wallet object for each address containing: found flag, Predge score, 7-day and 30-day win rates (from resolved markets), modeled 30-day and all-time PnL in USD, and top-5 favorite market categories. Also returns a market_overlap list of markets traded by 2 or more of the compared wallets. Unknown wallets are returned with found:false rather than omitted.

## 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": {
      "addresses": {
       "type": "string",
       "description": "Comma-separated 0x… addresses, 2-10 (deduplicated)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "modeled_pnl_* is a MODELED signed-volume proxy from the Predge scorer, NOT realized/settled P&L.",
  "wallets": [
   {
    "found": true,
    "score": 81,
    "address": "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8",
    "win_rate_7d": 0.67,
    "win_rate_30d": 0.71,
    "favorite_categories": [
     {
      "trades": 88,
      "category": "economics"
     }
    ],
    "modeled_pnl_30d_usd": 48100.5,
    "modeled_pnl_all_time_usd": 302400
   }
  ],
  "addresses": [
   "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8",
   "0x1234567890123456789012345678901234567890"
  ],
  "market_overlap": [
   {
    "title": "Will the Fed cut rates in September?",
    "wallets": [
     "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8"
    ],
    "platform": "polymarket",
    "condition_id": "0x178a746e2b342c25b1d78d0f0d0ea77157c9b6d40b2e97ffbf827cd7f9994c39"
   }
  ],
  "outcome_verified": {
   "pnl": false,
   "win_rate": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/predge-whale-data-wallet-comparison-8396c201/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)