# SiteCheck Polymarket Trades

> SiteCheck Polymarket Trades is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Fetches recent trades for a given Polymarket prediction market or asset token, returning side, size, price, outcome, and wallet details.

## Facts

- Endpoint: GET https://api.sitecheck-api.workers.dev/api/pm/trades?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-polymarket-trades-c563cbd4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__zcE3EBr3vOuAM9u3xKfJ

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 sitecheck-polymarket-trades-c563cbd4
```

Example prompt: Pull up the last 20 trades on the Polymarket market with condition ID 0xadebf2aec917971a733f74c66387529b3347ebf0f3019410427921d28e921beb — I want to see who's buying and selling, at what price, and whether they're trading Yes or No shares.

## When to prefer this

Use this endpoint when you need recent trade-level data (individual buy/sell events) for a specific Polymarket prediction market, as opposed to aggregate order book data or top-level market metadata. Prefer this over Polymarket's direct API when you need pay-per-call access without API key management, or when combining with other SiteCheck tools in a single workflow.

## Known failure modes

- Invalid or unknown market/asset ID returns empty trades array or error
- Missing required 'market' query parameter returns 400 bad request
- Limit exceeding 100 is capped or returns an error
- Network timeout or Polymarket upstream API unavailability returns 5xx
- Malformed market ID format may return no results

## How this service works

Fetches latest trade executions for a Polymarket condition ID or token. Returns timestamp, side (BUY/SELL), outcome label, execution price, size, value in USDC, and taker proxy wallet address. Limit up to 100 trades. Information only, not financial advice.

## Output

Returns a JSON object containing the market ID queried, source attribution, a trades array (each with side, size, price, outcome label, timestamp, USDC value, taker wallet address, and transaction hash), total trade count, query timestamp, and a disclaimer that data is informational only.

## 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",
     "required": [
      "market"
     ],
     "properties": {
      "limit": {
       "type": "string",
       "description": "Maximum trades to return (max 100)"
      },
      "market": {
       "type": "string",
       "description": "Market condition ID or asset token ID"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "market": "0xadebf2aec917971a733f74c66387529b3347ebf0f3019410427921d28e921beb",
  "source": "Polymarket Data API (data-api.polymarket.com/trades)",
  "trades": [
   {
    "side": "SELL",
    "size": 2.57,
    "price": 0.61,
    "outcome": "Yes",
    "timestamp": "2026-10-15T13:11:23.000Z",
    "usdcValue": 1.57,
    "takerWallet": "0x9efda3d6354152901fc4706c3b1a9ce50b45ad00",
    "transactionHash": "0xbf61dd9eccd14d6dd3cc73e4a4adc7ac5310cf0bb6999df6e6f4abd173fc00ac"
   },
   {
    "side": "BUY",
    "size": 26,
    "price": 0.63,
    "outcome": "Yes",
    "timestamp": "2026-10-15T13:11:22.000Z",
    "usdcValue": 16.38,
    "takerWallet": "0x9efda3d6354152901fc4706c3b1a9ce50b45ad00",
    "transactionHash": "0xffa31c716d51d2d7784967b9dff17c2df5f2e0688f61776f94c3de83c1974e05"
   },
   {
    "side": "SELL",
    "size": 73.43,
    "price": 0.38,
    "outcome": "No",
    "timestamp": "2026-10-15T13:11:22.000Z",
    "usdcValue": 27.9,
    "takerWallet": "0x37499246c9d3695d623c1244b58e7ebb94124094",
    "transactionHash": "0x2c719ffca4a7eda28fd307328dbb8eb0b5eb9ad30e20859d95cfb0dca736c32d"
   }
  ],
  "checkedAt": "2026-10-15T18:21:04.885Z",
  "disclaimer": "Information only, not financial advice.",
  "tradesCount": 10
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-polymarket-trades-c563cbd4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sitecheck-api.workers.dev](https://www.zero.xyz/host/api.sitecheck-api.workers.dev/llms.txt)