# CryptoIntel Polymarket Smart Money Signal

> CryptoIntel Polymarket Smart Money Signal is a paid API for AI agents from cryptointel-production.up.railway.app, paid per call via x402, $1.49/call, status unknown (last checked 2026-09-15).

Cross-references current Polymarket prediction market positions with historically profitable wallets (by PnL ranking) to return a consensus directional signal and confidence score

## Facts

- Endpoint: GET https://cryptointel-production.up.railway.app/poly-smart-money
- Price: $1.49/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptointel-polymarket-smart-money-signal-df4cdbb1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5dp14UOrTtuITZFA2r_Ky

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 cryptointel-polymarket-smart-money-signal-df4cdbb1
```

Example prompt: What's the smart money consensus on the Polymarket 'Bitcoin above 100k by end of year' market — check the top 20 wallets by PnL and tell me the direction and confidence score.

## When to prefer this

Use this endpoint when you need a sentiment or directional signal on a specific Polymarket prediction market derived from wallets with a track record of profitability — not just raw volume or open interest. Prefer this over generic Polymarket APIs when the user wants 'smart money' or 'whale' consensus rather than aggregate crowd sentiment.

## Known failure modes

- Market slug not found — returns error if the market keyword doesn't match an active Polymarket market
- No qualifying wallets — if fewer than the requested wallet count have positions, results may be sparse or unavailable
- Stale data — on-chain position data may lag real-time market changes by minutes
- Payment failure — $1.49 USDC x402 payment must succeed before data is returned; invalid payment returns 402
- Rate limits — excessive calls may be throttled by the Railway-hosted service

## How this service works

Smart money signal — cross-references current Polymarket positions with historically profitable wallets (top PnL ranking), returns consensus direction and confidence score

## Output

Returns a JSON object with ok status, a consensus directional signal (e.g. YES/NO or bullish/bearish), a confidence score, and supporting data derived from the positions of historically profitable (top PnL-ranked) Polymarket wallets on the specified market.

## 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 analyze (default 20)"
      },
      "market": {
       "type": "string",
       "description": "Polymarket market slug or question keyword"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "data": {
       "type": "object"
      },
      "fee_paid": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptointel-polymarket-smart-money-signal-df4cdbb1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptointel-production.up.railway.app](https://www.zero.xyz/host/cryptointel-production.up.railway.app/llms.txt)