Polymarket Changelog
Welcome to the PolyMarket Changelog. Here you will find any important changes to Polymarket, including but not limited to CLOB, API, UI and Mobile Applications.
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.
Upcoming change to /data/trades
(June 3, 2025)
- We’re adding a new
side
field to theMakerOrder
portion of the trade object. This field will indicate whether the maker order is abuy
orsell
, 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.
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
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.
CLOB Status/Health Endpoint Change (Release Date: May 28, 2025)
The health/status endpoint for CLOB has been changed to
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
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.
Upcoming change to /data/trades
(June 3, 2025)
- We’re adding a new
side
field to theMakerOrder
portion of the trade object. This field will indicate whether the maker order is abuy
orsell
, 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.
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
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.
CLOB Status/Health Endpoint Change (Release Date: May 28, 2025)
The health/status endpoint for CLOB has been changed to
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