Market Categories

Data Freshness & Historical Coverage

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

• Returns a current, point-in-time snapshot of category statistics — there is no date-range parameter or historical look-back, and values reflect within the standard live latency.

Get Prediction Market Categories

post

Get aggregated statistics for all prediction market categories. Shows volume, open interest, and top markets per category.

What it helps to answer:

1. Which prediction market categories have the most activity?

2. What is the volume breakdown by category?

3. What are the top markets in each category?

Authorizations

apikeystringRequired

API key for authentication

Body

Request for categories endpoint (pagination only).

Responses

200

Category 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/categories

POST /api/v1/prediction-market/categories HTTP/1.1
Host: api.nansen.ai
apikey: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 39

{
  "pagination": {
    "page": 1,
    "per_page": 10
  }
}

{
  "pagination": {
    "page": 1,
    "per_page": 10,
    "is_last_page": true
  },
  "data": [
    {
      "category": "Politics",
      "active_markets": 1,
      "total_open_interest": 1,
      "total_volume": 1,
      "total_volume_24hr": 1,
      "total_volume_1wk": 1,
      "total_traders_24h": 1,
      "top_market_id": "text",
      "top_market_question": "text",
      "top_market_volume_24hr": 1
    }
  ]
}