Trades By Market

Data Freshness & Historical Coverage

For data freshness and historical coverage, see Data Coverage by Chain; this endpoint follows it except where noted below.

• Covers the Polymarket prediction-markets dataset (trade and price history from November 2022), not per-chain history — see the Prediction Markets note on the coverage page.

Get Prediction Market Trades by Market

post

Get recent trades for a Polymarket prediction market. Trades are decoded from on-chain OrderFilled events on Polygon, joined with market metadata.

What it helps to answer:

1. What are the most recent trades in this market?

2. Who is buying and selling, and at what prices?

3. What is the trade size distribution?

Authorizations

apikeystringRequired

API key for authentication

Body

Request for trades by market endpoint.

market_idstring · min: 1 · max: 100Required

Polymarket market ID

Example: 654412

dateany ofOptional

Date range filter (ISO 8601 date-time)

Example: {"from":"2024-01-01T00:00:00Z","to":"2024-12-31T23:59:59Z"}

order_byany ofOptional

Sort order

Example: [{"direction":"DESC","field":"timestamp"}]

Responses

200

Trade data

application/json

400

Bad Request

application/json

401

Unauthorized

application/json

402

Payment Required

application/json

403

Forbidden

application/json

404

Not Found

application/json

422

Unprocessable Content

application/json

429

Too Many Requests

application/json

500

Internal Server Error

application/json

502

Bad Gateway

application/json

503

Service Unavailable

application/json

504

Gateway Timeout

application/json

post/api/v1/prediction-market/trades-by-market

POST /api/v1/prediction-market/trades-by-market HTTP/1.1
Host: api.nansen.ai
apikey: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 181

{
  "market_id": "654412",
  "pagination": {
    "page": 1,
    "per_page": 10
  },
  "date": {
    "from": "2024-01-01T00:00:00Z",
    "to": "2024-12-31T23:59:59Z"
  },
  "order_by": [
    {
      "direction": "DESC",
      "field": "timestamp"
    }
  ]
}

{
  "pagination": {
    "page": 1,
    "per_page": 10,
    "is_last_page": true
  },
  "data": [
    {
      "timestamp": "2024-11-01T12:30:00",
      "seller": "0x1234567890abcdef1234567890abcdef12345678",
      "buyer": "0xabcdefabcdefabcdefabcdefabcdefabcdefabcd",
      "taker_action": "buy",
      "side": "Yes",
      "outcome_index": 1,
      "size": 1000,
      "price": 0.52,
      "usdc_value": 520,
      "tx_hash": "0xabc123def456",
      "market_id": "654412"
    }
  ]
}