B2TRADER TERMINAL
B2TRADER APIRelease notes
View the history of B2TRADER API releases with key points and major updates highlighted
June 2, 2026
Improvements
Trading API: Stop orders for closed markets
The Trading API now accepts Stop orders for markets that are closed according to their trading calendar. The order is stored and activates automatically when the market reopens, instead of being rejected at submission.
Reports API: full account history
Trading reports can now be generated for the entire account history. The previous 92-day limit has been removed, and an All data range is now available for report generation.
Trading API: market asset identifiers
The baseAssetId and quoteAssetId fields have been added to the v6 /markets responses, allowing clients to resolve the base and quote assets of each market without additional lookups.
Accurate unrealized PnL
Unrealized PnL returned by the API is now calculated using the correct order book side for each position direction, improving the accuracy of PnL values in position and margin responses.
Resolved issues
- Resolved an issue where
WebhookAlertorder reason and position modifier values were returned as numeric codes instead of API enum strings in History API/v2/ordersresponses.
April 9, 2026
New features
Trading credit in API responses
Broker-issued trading credit is now exposed through the API. The account margin data response and the real-time margin stream include the current credit amount in the Reference Asset (creditInRAT). Credit is included in the account equity and excluded from the withdrawable amount.
Improvements
Webhook Trading API: webhook URL in key listing
The list webhook API keys response now includes the webhookUrl field, so the configured webhook endpoint can be retrieved for each key.
March 16, 2026
New features
Webhook Trading API
A new Webhook Trading API has been added, enabling automated order creation via webhook alerts with API key authentication.
Key points:
- Create and manage webhook API keys for secure authentication
- Receive trading alerts and create orders automatically
- Idempotency supported via deduplication ID
- Market type routing by symbol prefix (spot, CFD, perpetual)
Public Account ID
A new publicAccountId field has been added across all API endpoints, providing a human-readable account identifier as an alternative to internal UUIDs.
Affected APIs:
- Trading API — account-related responses and filters
- Settings API — account configuration endpoints
- History API — all REST endpoints and WebSocket streams
- Reports API — report responses and filters
Long-term trading data history
Date range restrictions have been removed from Order History and Closed Positions endpoints, allowing access to full trading history without time-based limitations.
Improvements
Transfer subtype field
A new subtype field has been added to transfer responses in the History API to distinguish Negative Balance Protection transfers from manual ones.
Rounded position prices
The positionPriceInRAT values are now properly rounded in closed position API responses according to the Reference Asset (RAT) scale.
Resolved issues
- Resolved an issue where
/total-swapsrequests returned HTTP 504 timeout errors.
March 11, 2026
Added FIX API documentation
Added new FIX API section covering Market Data and Trading sessions via the FIX 4.4 protocol.
March 11, 2026
Initial version
March 2, 2026
New features
Trading Terminal AI assistant
A new AI assistant has been added to the Trading Terminal, providing traders with an intelligent widget for market analysis and trading support.
Improvements
Public Account ID (preview)
The publicAccountId field has been added to account-related API responses as a preview, ahead of the full rollout across all endpoints.
February 25, 2026
New features
Funding Rates API
New API endpoints have been added for retrieving funding rate data synchronized from B2CONNECT, including funding rates, mark price, and funding interval for Perpetual Futures markets.
Key points:
- Funding rate values streamed in real time
- Mark price used for position valuation when available from LP
- Funding interval synchronized per market configuration
- FIX API contract extended with funding data fields
OHLC Candlestick API
A new API endpoint has been added for retrieving OHLC (candlestick) data, supporting both Spot and Perpetual Futures markets. Minute-level candle data is now stored for up to 5 years. OHLC candle data streaming is also available via the WebSocket API using gRPC transport, providing real-time candlestick updates.
Favorite markets
A new Favorite markets feature has been added, allowing traders to manage personalized market lists via the Trading API.
Comment field for orders and positions
A new comment field has been added to order and position responses across REST, WebSocket, and History APIs. The comment can be set when placing an order and is propagated to the associated position and execution records.
B2COPY Integration API
New API endpoints have been added for B2COPY and IB (Introducing Broker) integrations, including special account types for copy trading. The isCopyTradingAccount field has been added to the /api/v1/total-fundings endpoint.
Improvements
FIX API: enhanced request throughput
The FIX API trading request processing has been optimized to support up to 100 requests per second per connection. All TimeInForce types are now supported, including GTD (Good Till Date).
Multilingual support
Trading API, Settings API, and Reports API endpoints now support multilingual content with full Unicode character support, enabling localized responses for configurable fields, report names, and templates.
Stop Market order calculation
The Value and Amount calculation for Stop Market orders has been corrected for Spot markets. Slippage Rate has been removed from CFD and Perpetual Futures order calculations.
Trading API: empty categories hidden
Empty market categories are now automatically excluded from Trading API responses, reducing unnecessary data in category listings.
Balance API: zero balance for all assets
Assets without prior balance operations now return a zero balance in API responses instead of being omitted.
Cross-rate market configuration
Markets used exclusively for cross-rate calculations can now be disabled for trading while remaining active for rate conversion.
History API: extended contracts
Positions and Events API responses have been extended with additional fields. The updatedAt field is now available as a sorting and filtering parameter in History Server API endpoints.
Settings API: market update endpoint
The market update endpoint has been changed from PATCH to PUT semantics, requiring the full market object in the request body.
Settings API: legacy endpoints removed
Legacy commission and routing rule endpoints have been removed following the tier commission update. Use the current endpoints as documented in the API reference.
Resolved issues
- Resolved an issue where
takeProfitPriceandstopLossPricevalues were missing from the History Server/v2/ordersendpoint responses. - Resolved an issue where bulk order cancellation returned a successful result for non-existing orders.
- Resolved an issue where bulk order cancellation returned a successful result for orders that could not be cancelled.
- Resolved incorrect error codes returned when
closePositionLotAmountwas set to0, a negative value, or an empty string. - Resolved an issue where the WebSocket Book stream continued sending prices with an outdated tick size after market parameter changes.
- Resolved an issue where negative spreads in the Market Data API were not handled correctly.
- Resolved an issue where orders could not be created when using the default 24/7 calendar.
- Resolved an issue where the
/external-ordersAPI returnednullforrejectReasonalthough the Trading Server received a reason from the LP.
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