Install the library

NuGet

GitHub packages

Bitfinex.Net is available on GitHub packages. You'll need to add https://nuget.pkg.github.com/JKorf/index.json as a NuGet package source.

Download release

The NuGet package files are added along side the source with the latest GitHub release which can found here.

How to use

REST Endpoints

Websocket streams

For information on the clients, dependency injection, response processing and more see the documentation or have a look at the examples here or here.

CryptoExchange.Net

Bitfinex.Net is based on the CryptoExchange.Net base library. Other exchange API implementations based on the CryptoExchange.Net base library are available and follow the same logic.

CryptoExchange.Net also allows for easy access to different exchange API's.

Discord

A Discord server is available here. Feel free to join for discussion and/or questions around the CryptoExchange.Net and implementation libraries.

Supported functionality

Support the project

Any support is greatly appreciated.

Donate

Make a one time donation in a crypto currency of your choice. If you prefer to donate a currency not listed here please contact me.

Btc: bc1q277a5n54s2l2mzlu778ef7lpkwhjhyvghuv8qf
Eth: 0xcb1b63aCF9fef2755eBf4a0506250074496Ad5b7
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Sponsor

Alternatively, sponsor me on Github using Github Sponsors.

Release notes

• Version 9.9.1 - 27 Oct 2025

  • Added support for formatting futures symbols in BitfinexExchange.FormatSymbol

• Version 9.9.0 - 16 Oct 2025

  • Updated CryptoExchange.Net version to 9.10.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added ClientOrderId mapping on SharedUserTrade models
  • Added ITransferRestClient.TransferAsync implementation
  • Updated SpotApi IBalanceRestClient.GetBalancesAsync to support funding/margin wallet balance retrieval

• Version 9.8.0 - 30 Sep 2025

  • Updated CryptoExchange.Net version to 9.8.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added ITrackerFactory to TrackerFactory implementation

• Version 9.7.0 - 01 Sep 2025

  • Updated CryptoExchange.Net version to 9.7.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • HTTP REST requests will now use HTTP version 2.0 by default

• Version 9.6.0 - 25 Aug 2025

  • Updated CryptoExchange.Net version to 9.6.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added ClearUserClients method to user client provider

• Version 9.5.1 - 21 Aug 2025

  • Added additional insufficient balance error mapping
  • Added mapping or websocket unknown symbol error

• Version 9.5.0 - 20 Aug 2025

  • Updated CryptoExchange.Net to version 9.5.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added improved error parsing
  • Updated rest request sending too prevent duplicate parameter serialization

• Version 9.4.0 - 04 Aug 2025

  • Updated CryptoExchange.Net to version 9.4.0, see https://github.com/JKorf/CryptoExchange.Net/releases/

• Version 9.3.0 - 23 Jul 2025

  • Updated CryptoExchange.Net to version 9.3.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Updated websocket message matching

• Version 9.2.0 - 15 Jul 2025

  • Updated CryptoExchange.Net to version 9.2.0, see https://github.com/JKorf/CryptoExchange.Net/releases/

• Version 9.1.0 - 02 Jun 2025

  • Updated CryptoExchange.Net to version 9.1.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added (I)BitfinexUserClientProvider allowing for easy client management when handling multiple users

• Version 9.0.0 - 13 May 2025

  • Updated CryptoExchange.Net to version 9.0.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added support for Native AOT compilation
  • Added RateLimitUpdated event
  • Added SharedSymbol response property to all Shared interfaces response models returning a symbol name
  • Added GenerateClientOrderId method to Spot Shared client
  • Added OptionalExchangeParameters and Supported properties to EndpointOptions
  • Added IBookTickerRestClient implementation to Spot Shared client
  • Added ISpotTriggerOrderRestClient implementation to Spot Shared client
  • Added IsTriggerOrder, TriggerPrice to SharedSpotOrder response model
  • Added clientOrderId and clientOrderIdDate property to restClient.SpotApi.Trading.GetOpenOrdersAsync
  • Added All property to retrieve all available environment on BitfinexEnvironment
  • Added automatic mapping between UST and USDT asset and symbol names when using the Shared implementations
  • Refactored Shared clients quantity parameters and responses to use SharedQuantity
  • Updated all IEnumerable response and model types to array response types
  • Updated some model types to support AOT compatible deserialization
  • Fixed InvalidOperationException in user data snapshot updates if there is no data in the snapshot
  • Fixed empty Shared balance updates if there are no spot changes
  • Removed Newtonsoft.Json dependency
  • Removed legacy ISpotClient implementation
  • Removed legacy AddBitfinex(restOptions, socketOptions) DI overload
  • Fixed some typos

• Version 9.0.0-beta4 - 01 May 2025

  • Updated CryptoExchange.Net version to 9.0.0-beta5
  • Added property to retrieve all available API environments
  • Fixed Shared balance updates being published even if there was no data in it

• Version 9.0.0-beta3 - 25 Apr 2025

  • Fixed InvalidOperationException in user data snapshot updates if the snapshot is empty

• Version 9.0.0-beta2 - 23 Apr 2025

  • Updated CryptoExchange.Net to version 9.0.0-beta2

• Version 9.0.0-beta1 - 22 Apr 2025

  • Updated CryptoExchange.Net to version 9.0.0-beta1, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added support for Native AOT compilation
  • Added RateLimitUpdated event
  • Added SharedSymbol response property to all Shared interfaces response models returning a symbol name
  • Added GenerateClientOrderId method to Spot Shared client
  • Added OptionalExchangeParameters and Supported properties to EndpointOptions
  • Added IBookTickerRestClient implementation to Spot Shared client
  • Added ISpotTriggerOrderRestClient implementation to Spot Shared client
  • Added IsTriggerOrder, TriggerPrice to SharedSpotOrder response model
  • Added clientOrderId and clientOrderIdDate property to restClient.SpotApi.Trading.GetOpenOrdersAsync
  • Refactored Shared clients quantity parameters and responses to use SharedQuantity
  • Updated all IEnumerable response and model types to array response types
  • Updated some model types to support AOT compatible deserialization
  • Removed Newtonsoft.Json dependency
  • Removed legacy ISpotClient implementation
  • Removed legacy AddBitfinex(restOptions, socketOptions) DI overload
  • Fixed some typos

• Version 8.1.1 - 12 Feb 2025

  • Fixed SharedSymbol formatting for assets with more than 3 characters in the name
  • Fixed unnecessary unsubscribe call when subscribe is never confirmed

• Version 8.1.0 - 11 Feb 2025

  • Updated CryptoExchange.Net to version 8.8.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added support for more SharedKlineInterval values
  • Added setting of DataTime value on websocket DataEvent updates
  • Fix Mono runtime exception on rest client construction using DI

• Version 8.0.2 - 06 Feb 2025

  • Fixed deserialization error in BitfinexOrder response model

• Version 8.0.1 - 05 Feb 2025

  • Updated CryptoExchange.Net to version 8.7.3 to fix serialization error, see https://github.com/JKorf/CryptoExchange.Net/releases/

• Version 8.0.0 - 27 Jan 2025

  • Added client side ratelimit implementation
  • Updated library to System.Text.Json from Newtonsoft.Json for json (de)serialization
  • Updated CryptoExchange.Net to version 8.7.2, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Updated public websocket subscriptions to use the URI specifically for public data
  • Updated websocket to use bulk updates for order book updates (configurable)
  • Updated Enum conversions to use EnumConverter

• Version 7.13.1 - 07 Jan 2025

  • Updated CryptoExchange.Net version
  • Added Type property to BitfinexExchange class

• Version 7.13.0 - 23 Dec 2024

  • Updated CryptoExchange.Net to version 8.5.0, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Added SetOptions methods on Rest and Socket clients
  • Added setting of DefaultProxyCredentials to CredentialCache.DefaultCredentials on the DI http client

• Version 7.12.2 - 05 Dec 2024

  • Fixed Shared balance subscription also sending funding balances

• Version 7.12.1 - 03 Dec 2024

  • Updated CryptoExchange.Net to version 8.4.3, see https://github.com/JKorf/CryptoExchange.Net/releases/
  • Fixed orderbook creation via BitfinexOrderBookFactory

• Version 7.12.0 - 28 Nov 2024

  • Updated CryptoExchange.Net to version 8.4.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/8.4.0
  • Added GetFeesAsync Shared REST client implementations
  • Updated BitfinexOptions to LibraryOptions implementation
  • Updated test and analyzer package versions

• Version 7.11.0 - 19 Nov 2024

  • Updated CryptoExchange.Net to version 8.3.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/8.3.0
  • Added support for loading client settings from IConfiguration
  • Added DI registration method for configuring Rest and Socket options at the same time
  • Added DisplayName and ImageUrl properties to BitfinexExchange class
  • Updated client constructors to accept IOptions from DI
  • Removed redundant BitfinexSocketClient constructor

• Version 7.10.0 - 06 Nov 2024

  • Updated CryptoExchange.Net to version 8.2.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/8.2.0

• Version 7.9.0 - 28 Oct 2024

  • Updated CryptoExchange.Net to version 8.1.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/8.1.0
  • Moved FormatSymbol to BitfinexExchange class
  • Added support Side setting on SharedTrade model
  • Added BitfinexTrackerFactory for creating trackers
  • Added overload to Create method on BitfinexOrderBookFactory support SharedSymbol parameter
  • Added filtering of TradeUpdate messages in Shared rest trade socket subscription (Trade execution messages are still processed)

• Version 7.8.2 - 14 Oct 2024

  • Updated CryptoExchange.Net to version 8.0.3, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/8.0.3
  • Fixed TypeLoadException during initialization

• Version 7.8.1 - 08 Oct 2024

  • Limit shared interface GetBalancesAsync result to Exchange balances to prevent duplicate asset balances

• Version 7.8.0 - 27 Sep 2024

  • Updated CryptoExchange.Net to version 8.0.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/8.0.0
  • Added Shared client interfaces implementation for Spot Rest and Socket clients
  • Added SpotApi.Account.WithdrawV2Async endpoint
  • Updated SpotApi.ExchangeData.GetTradeHistoryAsync limit parameter max value from 5000 to 10000
  • Updated Sourcelink package version
  • Marked ISpotClient references as deprecated

• Version 7.7.0 - 07 Aug 2024

  • Updated CryptoExchange.Net to version 7.11.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.11.0
  • Updated XML code comments
  • Fixed BitfinexPosition model Type enum being nullable

• Version 7.6.0 - 27 Jul 2024

  • Updated CryptoExchange.Net to version 7.10.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.10.0
  • Fixed stats endpoints last stats by splitting endpoints into Last and History variants

• Version 7.5.0 - 16 Jul 2024

  • Updated CryptoExchange.Net to version 7.9.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.9.0
  • Updated internal classes to internal access modifier
  • Added check allowing subscribing to the same websocket stream multiple times

• Version 7.4.3 - 02 Jul 2024

  • Updated CryptoExchange.Net to V7.8.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.8.0

• Version 7.4.2 - 26 Jun 2024

  • Updated CryptoExchange.Net to 7.7.3, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.7.3
  • Fixed SpotApi.Account.GetMovementsDetailsAsync deserialization
  • Fixed SpotApi.SubscribeToDerivativesUpdatesAsync subscription
  • Fixed funding info subscription

• Version 7.4.1 - 25 Jun 2024

  • Updated CryptoExchange.Net to 7.7.2, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.7.2
  • Fixed SpotApi.ExchangeData.GetLiquidationsAsync deserializations

• Version 7.4.0 - 23 Jun 2024

  • Updated CryptoExchange.Net to version 7.7.0, see https://github.com/JKorf/CryptoExchange.Net/releases/tag/7.7.0
  • Updated response models from classes to records
  • Fixed exception during order status parsing

• Version 7.3.0 - 11 Jun 2024

  • Updated CryptoExchange.Net to v7.6.0, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.2.8 - 07 May 2024

  • Updated CryptoExchange.Net to v7.5.2, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.2.7 - 01 May 2024

  • Updated CryptoExchange.Net to v7.5.0, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.2.6 - 28 Apr 2024

  • Added BitfinexExchange static info class
  • Added BitfinexOrderBookFactory book creation method
  • Fixed BitfinexOrderBookFactory injection issue
  • Updated CryptoExchange.Net to v7.4.0, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.2.5 - 23 Apr 2024

  • Updated CryptoExchange.Net to 7.3.3, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.2.4 - 18 Apr 2024

  • Updated CryptoExchange.Net to 7.3.1, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.2.3 - 03 Apr 2024

  • Updated string comparison for improved performance
  • Removed pre-send symbol validation

• Version 7.2.2 - 25 Mar 2024

  • Fixed parameter serialization websocket queries
  • Added missing info websocket user data updates

• Version 7.2.1 - 24 Mar 2024

  • Updated CryptoExchange.Net to 7.2.0, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes
  • Fixed Topic not set in socket client SubscribeToKlineUpdatesAsync updates

• Version 7.2.0 - 16 Mar 2024

  • Updated CryptoExchange.Net to 7.1.0, see https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes for release notes

• Version 7.1.0 - 25 Feb 2024

  • Updated CryptoExchange.Net and implemented reworked websocket message handling. For release notes for the CryptoExchange.Net base library see: https://github.com/JKorf/CryptoExchange.Net?tab=readme-ov-file#release-notes
  • Combined multiple private websocket subscriptions into single subscription
  • Fixed issue in DI registration causing http client to not be correctly injected
  • Removed redundant BitfinexRestClient constructor overload
  • Removed UpdateType from BitfinexTradeSimple model in favor of the UpdateType in the DataEvent wrapper
  • Updated some namespaces

• Version 7.0.5 - 03 Dec 2023

  • Updated CryptoExchange.Net

• Version 7.0.4 - 24 Oct 2023

  • Updated CryptoExchange.Net

• Version 7.0.3 - 09 Oct 2023

  • Updated CryptoExchange.Net version

• Version 7.0.2 - 21 Sep 2023

  • Fixed incorrect url SpotApi.Account.WalletTransferAsync

• Version 7.0.1 - 19 Sep 2023

  • Fixed socket ticker stream model

• Version 7.0.0 - 17 Sep 2023

  • Updated all endpoints to V2 API (expect for Account.WithdrawAsync)
  • Updated all parameters and response models
  • Created endpoints for all possible requests for the Configs and Stats endpoints
  • Split the endpoints and subscriptions for trading symbols and funding symbols where necesarry
  • Added Account.GetMovementsDetailsAsync endpoint
  • Added Account.GetLoginHistoryAsync endpoint
  • Added Account.GetApiKeyPermissionsAsync endpoint
  • Added Account.GetAccountChangeLogAsync endpoint
  • Added ExchangeData.GetDerivativesStatusAsync endpoint
  • Added ExchangeData.GetLiquidationsAsync endpoint
  • Added ExchangeData.GetFundingStatisticsAsync endpoint
  • Added Trading.IncreasePositionAsync endpoint
  • Added Trading.GetIncreasePositionInfoAsync endpoint
  • Added Trading.GetPositionSnapshotsAsync endpoint
  • Added SubscribeToLiquidationUpdatesAsync stream
  • Added SubscribeToDerivativesUpdatesAsync stream
  • Added SubmitFundingOfferAsync socket request
  • Added CancelFundingOfferAsync socket request

• Version 6.0.1 - 25 Aug 2023

  • Updated CryptoExchange.Net

• Version 6.0.0 - 25 Jun 2023

  • Updated CryptoExchange.Net to version 6.0.0
  • Renamed BitfinexClient to BitfinexRestClient
  • Renamed SpotStreams to SpotApi on the BitfinexSocketClient
  • Updated endpoints to consistently use a base url without any path as basis to make switching environments/base urls clearer
  • Added IBitfinexOrderBookFactory and implementation for creating order books
  • Updated dependency injection register method (AddBitfinex)

• Version 5.2.0 - 16 Apr 2023

  • Added GetTickerHistoryAsync endpoint
  • Updated socket PlaceOrderAsync parameters
  • Added missing order flag values

• Version 5.1.2 - 18 Mar 2023

  • Updated CryptoExchange.Net

• Version 5.1.1 - 14 Feb 2023

  • Updated CryptoExchange.Net

• Version 5.1.0 - 17 Nov 2022

  • Updated CryptoExchange.Net

• Version 5.0.16 - 25 Sep 2022

  • Fixed SpotApi.ExchangeData.GetOrderBookAsync() endpoint Bids/Asks being reversed

• Version 5.0.15 - 18 Jul 2022

  • Updated CryptoExchange.Net

• Version 5.0.14 - 16 Jul 2022

  • Updated CryptoExchange.Net

• Version 5.0.13 - 10 Jul 2022

  • Fixed WalletTransferAsync success checking
  • Updated CryptoExchange.Net

• Version 5.0.12 - 12 Jun 2022

  • Updated CryptoExchange.Net

• Version 5.0.11 - 24 May 2022

  • Updated CryptoExchange.Net

• Version 5.0.10 - 22 May 2022

  • Updated CryptoExchange.Net

• Version 5.0.9 - 08 May 2022

  • Updated CryptoExchange.Net

• Version 5.0.8 - 01 May 2022

  • Updated CryptoExchange.Net which fixed an timing related issue in the websocket reconnection logic
  • Added seconds representation to KlineInterval enum
  • Added allowed order book levels 1 and 250

• Version 5.0.7 - 14 Apr 2022

  • Fixed deserialization error in ClosePositionAsync
  • Fixed WalletTransferAsync serialization issue
  • Updated CryptoExchange.Net

• Version 5.0.6 - 14 Mar 2022

  • Added SubmitFundingAutoRenewAsync endpoint
  • Added GetFundingAutoRenewStatusAsync endpoint

• Version 5.0.5 - 10 Mar 2022

  • Updated CryptoExchange.Net

• Version 5.0.4 - 08 Mar 2022

  • Updated CryptoExchange.Net

• Version 5.0.3 - 01 Mar 2022

  • Updated CryptoExchange.Net improving the websocket reconnection robustness

• Version 5.0.2 - 27 Feb 2022

  • Updated CryptoExchange.Net

• Version 5.0.1 - 24 Feb 2022

  • Updated CryptoExchange.Net

• Version 5.0.0 - 18 Feb 2022

  • Added Github.io page for documentation: https://jkorf.github.io/Bitfinex.Net/

  • Added unit tests for parsing the returned JSON for each endpoint and subscription

  • Added AddBitfinex extension method on IServiceCollection for easy dependency injection

  • Added URL reference to API endpoint documentation for each endpoint

  • Refactored client structure to be consistent across exchange implementations

  • Renamed various properties to be consistent across exchange implementations

  • Cleaned up project structure

  • Fixed various models

  • Updated CryptoExchange.Net, see https://github.com/JKorf/CryptoExchange.Net#release-notes

  • See https://jkorf.github.io/Bitfinex.Net/MigrationGuide.html for additional notes for updating from V4 to V5

• Version 4.2.4 - 03 Nov 2021

  • Fixed raw order book stream not accounting for checksum updates

• Version 4.2.3 - 08 Oct 2021

  • Updated CryptoExchange.Net to fix some socket issues

• Version 4.2.2 - 06 Oct 2021

  • Updated CryptoExchange.Net, fixing socket issue when calling from .Net Framework

• Version 4.2.1 - 05 Oct 2021

  • Updated CryptoExchange.Net

• Version 4.2.0 - 29 Sep 2021

  • Split GetTickerAsync in GetTickerAsync and GetTickersAsync, changed params to IEnumerable
  • Updated CryptoExchange.Net

• Version 4.1.2 - 22 Sep 2021

  • Fixed nonce provider when running multiple program instances

• Version 4.1.1 - 21 Sep 2021

  • Fix for nonce provider not working correctly in combination with other exchanges

• Version 4.1.0 - 20 Sep 2021

  • Added custom nonce provider support

• Version 4.0.5 - 15 Sep 2021

  • Updated CryptoExchange.Net

• Version 4.0.4 - 02 Sep 2021

  • Fix for disposing order book closing socket even if there are other connections

• Version 4.0.3 - 26 Aug 2021

  • Updated CryptoExchange.Net

• Version 4.0.2 - 24 Aug 2021

  • Updated CryptoExchange.Net, improving websocket and SymbolOrderBook performance
  • Fixes for checksum validation BitfinexSymbolOrderBook

• Version 4.0.1 - 13 Aug 2021

  • Fix for OperationCancelledException being thrown when closing a socket from a .net framework project

• Version 4.0.0 - 12 Aug 2021

  • Release version with new CryptoExchange.Net version 4.0.0
    • Multiple changes regarding logging and socket connection, see CryptoExchange.Net release notes

• Version 4.0.0-beta3 - 09 Aug 2021

  • Renamed GetTradesForOrderAsync to GetOrderTradesAsync
  • Renamed GetTradesAsync to GetTradeHistoryAsync
  • Renamed GetTradeHistoryAsync to GetUserTradesAsync
  • Renamed GetOrderHistoryAsync to GetOrdersAsync

• Version 4.0.0-beta2 - 26 Jul 2021

  • Updated CryptoExchange.Net

• Version 4.0.0-beta1 - 09 Jul 2021

  • Added Async postfix for async methods
  • Updated CryptoExchange.Net

• Version 3.5.0-beta4 - 07 Jun 2021

  • Fixed IExchangeClient PlaceOrder OrderType
  • Fixed WalletTransferAsync amount parameter serialization
  • Updated CryptoExchange.Net

• Version 3.5.0-beta3 - 26 May 2021

  • Removed non-async calls
  • Updated to CryptoExchange.Net changes

• Version 3.5.0-beta2 - 06 mei 2021

  • Updated CryptoExchange.Net

• Version 3.5.0-beta1 - 30 apr 2021

  • Updated to CryptoExchange.Net 4.0.0-beta1, new websocket implementation