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Upcoming change to get-book & get-books (July 23, 2025)

  • We’re adding new fields to the get-book and get-books CLOB endpoints to include key market metadata that previously required separate queries.
    • min_order_size
      • type: string
      • description: Minimum allowed order size.
    • neg_risk
      • type: boolean
      • description: Boolean indicating rather the market is neg_risk.
    • tick_size
      • type: string
      • description: Minimum allowed order size.

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New Batched Orders Endpoint (June 3, 2025)

  • We’re excited to roll out a highly requested feature: order batching. With this new endpoint, users can now submit up to five trades in a single request. To help you get started, we’ve included sample code demonstrating how to use it. Please see Place Multiple Orders (Batching) for more details.

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Upcoming change to /data/trades (June 3, 2025)

  • We’re adding a new side field to the MakerOrder portion of the trade object. This field will indicate whether the maker order is a buy or sell, helping to clarify trade events where the maker side was previously ambiguous. For more details, refer to the MakerOrder object on the Get Trades page.

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Websocket Changes: (Release Date: May 28, 2025)

  • The 100 token subscription limit has been removed for the Markets channel. You can now subscribe to as many token IDs as needed for your use case.
  • New Subscribe Field initial_dump
    • Optional field to indicate whether you want to receive the initial order book state when subscribing to a token or list of tokens.
    • default: true

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API Change: FAK Orders (Release Date: May 28, 2025)

We’re excited to introduce a new order type soon to be available to all users: Fill and Kill (FAK). FAK orders behave similarly to the well-known Fill or Kil(FOK) orders, but with a key difference:
  • FAK will fill as many shares as possible immediately at your specified price, and any remaining unfilled portion will be canceled.
  • Unlike FOK, which requires the entire order to fill instantly or be canceled, FAK is more flexible and aims to capture partial fills if possible.

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CLOB Status/Health Endpoint Change (Release Date: May 28, 2025)

The health/status endpoint for CLOB has been changed to

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API Change: Increased API Rate Limits (May 15, 2025 10AM EST)

All API users will enjoy increased rate limits for the CLOB endpoints.
  • CLOB - /books (website) (300req - 10s / Throttle requests over the maximum configured rate)
  • CLOB - /books (50 req - 10s / Throttle requests over the maximum configured rate)
  • CLOB - /price (100req - 10s / Throttle requests over the maximum configured rate)
  • CLOB markets/0x (50req / 10s - Throttle requests over the maximum configured rate)
  • CLOB POST /order - 500 every 10s (50/s) - (BURST) - Throttle requests over the maximum configured rateed
  • CLOB POST /order - 3000 every 10 minutes (5/s) - Throttle requests over the maximum configured rate
  • CLOB DELETE /order - 500 every 10s (50/s) - (BURST) - Throttle requests over the maximum configured rate
  • DELETE /order - 3000 every 10 minutes (5/s) - Throttle requests over the maximum configured rate