Trusted by industry leaders
Why choose Gateway
A smarter way to distribute trading data
Proven in high-volume, low-latency trading environments, Caplin Gateway is a trading-native integration layer trusted by global financial institutions to standardise real-time data distribution across complex, fragmented architectures.
Connect disjointed trading systems
Bridge disconnected middleware and trading platforms
Enable cross-asset data sharing across Rates, FX and Commodities
Increase internalisation by distributing liquidity across trading desks
Improve technology and operational alignment with FICC business lines
Control and optimise data
Handle high-volume data streams from upstream platforms (e.g. Kafka)
Tailor data delivery to each application, user or channel
Improve data quality across low-bandwidth connections or on resource-constrained hardware
Centralise authentication and access control across all data consumers
Accelerate delivery of trading capabilities
Bring new trading and pricing APIs, front-ends and channels online in weeks rather than months
Reduce the impact of even large-scale backend change on downstream consumers
Enable faster rollout of trading capabilities to users and clients
Simplify architecture and reduce cost
Reduce reliance on point-to-point integrations between systems
Standardise data distribution and make connections that fix fragmented architectures
Lower operating cost by simplifying architecture and removing duplication
What Gateway does
Trusted infrastructure for real-time trading systems
Caplin Gateway is a suite of server applications, components and APIs for transforming and distributing market data, trading activity and risk in any asset class. It powers the software used by all Caplin customers, supporting a wide range of use cases including single dealer platforms, sales workflows, FX, crypto and pricing engines in high-volume, low-latency environments.
Real-time data distribution
Distributes streaming trading data across applications and services in multiple formats, including JSON, XML and binary, supporting consistent delivery across web, desktop, mobile and server environments.
Integration layer
Provides a single connection point across pricing, trading and market data systems, enabling interoperability between platforms and consistent access to data across modern and legacy environments.
Client session management
Manages client sessions across HTML5, desktop and mobile applications, as well as headless services, ensuring consistent behaviour and connectivity across different user interfaces and execution environments.
Security and entitlements
Enforces access entitlements across all data consumers, centralising authentication and permissioning to ensure secure, controlled distribution of data across users, applications and channels.
It’s happening with Caplin
Powering up their time to value
Case study
Enabling low-latency, scalable FICC data delivery for Citigroup
Citi moved from complex data delivery challenges to a scalable, low-latency distribution model using Caplin Gateway, enabling traversal of a complex network topology and consumption by both HTML5 and desktop front-ends.
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Case study
Implementing market data service levels and web distribution for a G7 stock exchange
A G7 stock exchange uses Caplin Gateway to move market data from their ticker plant and apply a number of transformations, delays and caching operations to implement several service levels, ranging from low-latency live streaming to 15-minute delayed to end-of-day OHLC, and to distribute that data to various external consumers via the internet.
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How to integrate
Simple to integrate into existing architectures
Caplin Gateway integrates into existing architectures through three steps: contributing data, applying transformation logic and securely delivering it to consuming applications.
Contribute
Connect your existing systems and data sources to Gateway by building adaptors or bridging services using the Caplin Integration Suite. Contributors can both publish and consume data within the platform.
Transform
Apply business logic and data processing through Transformer modules or scripted pipelines. Support for Java, C, Lua and JavaScript enables flexible, scalable handling of real-time data.
Publish
Deliver data to applications using StreamLink libraries across web, desktop and mobile environments. Built-in authentication, SSO integration and entitlement controls ensure secure access for all consumers.
Technology components
Engineered for high-performance trading
Caplin Gateway is built from components that handle real-time data distribution, transformation, security and operational monitoring, working together to support high-performance trading environments.
High-performance streaming for trading data
Highly optimised to deliver large volumes of real-time market and trading data to web applications with extremely low latency.
Built to scale horizontally with load, with flexible throttling, conflation, batching and paging functionality out of the box.
Compatible with a wide range of consumer apps, our StreamLink API supports multiple connection methods, including WebSocket, HTTP streaming/polling and direct TCP.
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Real-time data processing and transformation
An event-driven data transformation engine and cache, optimised to process and store large volumes of real-time trading data.
Built on a modular architecture, it allows business logic to be deployed and maintained efficiently while workloads scale securely across clustered nodes. A native key-value store enables rapid publication of cached data.
Supports business logic written in Java, Lua, JavaScript and C.
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Authentication and entitlement management*
Secure authentication for streaming data services using public-key cryptography.
Digitally signed tokens allow applications to authenticate with the streaming platform without maintaining multiple login credentials. Integrates easily with enterprise SSO systems.
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Operational visibility and oversight
Provides rich operational metrics for monitoring system performance and activity.
Integrates with standard monitoring platforms including JMX and Prometheus, enabling engineering teams to track performance, usage and system health in real time.
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Want to know more?
Book a meeting to get started
We’ll help you find the right solution for your business.
Rodney Chetty, Standard Bank
“Caplin’s suite of products form a key part of how we do business with our clients. The Caplin team provide a great technology solution and strong business partnership that supports our aspirations”
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