Get order books for a market

Returns the latest orderbook snapshot for every position (outcome) in a market. Accepts condition_id or market_slug. bids and asks are arrays of {"p": price, "s": size} objects, sorted best-first.

GET /polymarket/order-book/market

Get order books for a market

cURL

curl --request GET \
  --url https://api.struct.to/v1/polymarket/order-book/market

200

[
  {
    "ts": 123,
    "position_id": "<string>",
    "condition_id": "<string>",
    "bids": [
      {
        "p": "<string>",
        "s": "<string>"
      }
    ],
    "asks": [
      {
        "p": "<string>",
        "s": "<string>"
      }
    ],
    "hash": "<string>",
    "best_bid": 123,
    "best_ask": 123,
    "mid_price": 123,
    "spread": 123,
    "bid_liquidity_usd": 123,
    "ask_liquidity_usd": 123,
    "bid_levels": 123,
    "ask_levels": 123
  }
]

Query Parameters

condition_id · string

Condition ID of the market

market_slug · string

Market slug (alternative to condition_id)

Response

200

application/json

Latest orderbook snapshot per position. ts is Unix milliseconds.

ts · integer<int64> · required

Unix timestamp in seconds.

position_id · string · required

Position ID.

condition_id · string · required

Condition ID.

bids · object[] · required

Bid levels for the order book.

Show child attributes

asks · object[] · required

Ask levels for the order book.

Show child attributes

hash · string · required

Order book snapshot hash.

best_bid · number<double> | null

Best bid.

best_ask · number<double> | null

Best ask.

mid_price · number<double> | null

Mid price.

spread · number<double> | null

Spread.

bid_liquidity_usd · number<double> | null

Bid liquidity in USD.

ask_liquidity_usd · number<double> | null

Ask liquidity in USD.

bid_levels · integer<int32> | null

Bid levels.

ask_levels · integer<int32> | null

Ask levels.