Documentation - developers

admin

Anonymous (anonymous@undisclosed.example.com) — 2025-03-14T02:49:34+00:00

T4Login Admin API The T4 Admin API provides administrative access to manage users and accounts on the platform. This API is intended for system administrators and authorized personnel only. API Documentation The complete API documentation is available via Swagger UI at:

api

Anonymous (anonymous@undisclosed.example.com) — 2025-03-15T16:17:04+00:00

Plus500 Futures Technologies WebSocket API Welcome to the Plus500 Futures Technologies WebSocket API! Our API delivers high-performance, real-time market data and trading capabilities using Google Protocol Buffers (Protobuf) for ultra-efficient binary messaging. Designed for

chart

Anonymous (anonymous@undisclosed.example.com) — 2025-05-31T01:29:16+00:00

T4 Chart API Our chart API provides data in aggregated or non-aggregated (raw trade) formats. The complete API documentation is available via Swagger UI at: T4 Chart API Documentation The Swagger documentation provides: * Complete list of available endpoints * Request parameters and response formats

fixapi.heartbeat

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T15:00:11+00:00

Heartbeat Session Integrity Heartbeats provide (application-level) connectivity during a FIX session. The heartbeat message maintains the communication link when transactional messages (e.g. trading order routing message) are not received. Under normal conditions, the client and T4 FIX

fixapi.logon

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T14:59:46+00:00

Logon If at anytime you require assistance from CTS you must send in your FIX messages to T4.API@plus500.com. Our API support will not answer if the messages aren't delimited in a reasonable way for readability. Session Initiation After a successful SSL connection, the T4 FIX

fixapi.logout

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T14:54:52+00:00

Logout Session Termination The Logout message requests or indicates the termination of a FIX session. The logout initiator should wait for a response and/or confirmation to the logout condition. This will permit the counterparty to gently close its connection and honor a potential message gap-fill.

fixapi.resendrequest

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T17:37:21+00:00

Resend Request Message Range Replay With the Resend Request message, a receiving application asks for the retransmission of previously sent messages. The previously sent messages span over an input range of sequence numbers. The input range is specified with

fixapi.sequencereset

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T17:41:17+00:00

Sequence Reset Resetting Sequence Numbers The Sequence Reset message requests the counterparty to change the requestor's expected sequence number. The new sequence number is indicated by the mandatory field NewSeqNo (Tag 36). Under out-of-sequence conditions, Sequence Reset messages are important as they provide a mechanism to skip message gaps that are not to be honored by a Resend Request. Sequence Resets also provide a mechanism of recovery from disaster conditions.

fixapi.testrequest

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T17:30:47+00:00

Test Request Session Integrity Check A Test Request message forces a response from the counterparty to acknowledge the continuation of FIX Session connectivity. Test requests can occur at any time during the FIX Session. When a test request is received, the party is obligated to respond to the Test Request message with a Heartbeat. Such heartbeat must also contain the

legacy

Anonymous (anonymous@undisclosed.example.com) — 2025-09-11T18:42:08+00:00

Legacy T4 API's We remain committed to supporting our legacy .NET and FIX APIs for existing integrations. However, for all new integration projects, we strongly encourage looking at our WebSocket API, which is a modern real-time high performance API which works on any platform.

login

Anonymous (anonymous@undisclosed.example.com) — 2025-03-14T02:49:53+00:00

Logging in to the T4 API Sim Login API Method POST URL Body { "firm" : "", "userName" : "", "password" : "", "appName" : "", "appLicense" : "" }

logon

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T12:37:15+00:00

Logon If at anytime you require assistance from CTS you must send in your FIX messages to T4.APIsupport@plus500.com. Our API support will reject your messages are not delimited in a reasonable way for readability Session Initiation After a successful SSL connection, the T4 FIX

markets

Anonymous (anonymous@undisclosed.example.com) — 2025-04-10T21:30:16+00:00

Instruments API The T4 system uses MarketID to uniquely identify tradeable instruments on our platform. These instruments are partitioned in a hierarchical manner using: ExchangeID Represents the exchange and market segment. Examples include CME Equities

sidebar

Anonymous (anonymous@undisclosed.example.com) — 2025-09-12T00:53:11+00:00

* Home * Developers Home * Trading API * WebSocket API Introduction * Download and Support * Message Reference * Connecting and Authenticating * Market Data & Definitions * Quote Feed * Account Feed * Order Routing * Pricing and Data Types * Certification and Testing * FAQ * Login API * Admin API * Onboarding Integration * Integration Walktrhough * Advanced Integration * Instruments API * Chart API * System Price Format …

start

Anonymous (anonymous@undisclosed.example.com) — 2025-09-12T02:44:18+00:00

Welcome to the T4 Developer Documentation For all API support please email t4.apisupport@plus500.com Overview The T4 platform provides a comprehensive suite of APIs designed for financial trading applications. Our APIs enable developers to build powerful trading solutions with access to real-time market data, order execution, account management, and more.

systempricing

Anonymous (anonymous@undisclosed.example.com) — 2025-12-04T01:48:50+00:00

System Price Format T4 publishes prices in two formats: Decimal (default) and Real. The setting controls only decimal placement on all prices, including chart data and API/FIX responses. If you expect ES to look like 5954.75 instead of 595475, choose

websocket

Anonymous (anonymous@undisclosed.example.com) — 2025-03-14T19:15:18+00:00

WebSocket API Introduction The WebSocket API provides a high-performance, low-latency communication channel for real-time trading data and order execution. This section introduces the key technologies used in the API: WebSockets and Google Protocol Buffers (Protobuf)