Upgrade
your engine
The Greens is a modern, secure, end-to-end brokerage platform. Grow your business with a brand-new platform designed for performance.
Real-time, event-driven architecture
Don’t be constrained by overnight batch processing. See what real-time processing can do for your customers.
Plug and play APIs
Our APIs are tied directly into our platform, allowing for accelerated testing and app development.
Sandbox environment for hassle-free testing
Try-before-you buy hassle-free testing experience.
Leave behind the technical gymnastics
Modular design and event-driven architecture so you can deliver the services you need, when you need them. Current services include account management, money movement, clearing, settlement, direct indexing, and trading.
Our APIs are tied directly into our platform, allowing for accelerated testing and app development.
Real-time, event-driven architecture
Don’t be constrained by overnight batch processing. See what real-time processing can do for your customers.
Cloud native
Flexibility to help you develop, integrate and implement easily and at speed. Scalable up to 1 million trades per hour.
Sandbox environment
Try-before-you buy hassle-free testing experience. We need one more sentence to balance it out.
Events
Nov 2025
happy customers.
completed projects.
working hours.
Deploy quickly & keep innovating
Build the next standout experience on a full-stack platform designed for rapid deployment, continuous iteration, and long-term scalability.
Brokerage in a box.
Built for builders.
Ready for what's next.

Enterprise-grade & fully-regulated

Driven by decades of innovation
Fidelity Center for Applied Technology LLC (FCAT®) provides innovative products, services, content and tools, as a service to its affiliates and as a subsidiary of FMR LLC. Based on input and feedback, FCAT is better able to engage in technology research and planning for the Fidelity family of companies. Unless otherwise indicated, the information and items presented are provided by FCAT and are not intended to provide tax, legal, insurance or investment advice and should not be construed as an offer to sell, a solicitation of an offer to buy, or a recommendation for any security by any Fidelity entity or any third-party. Third-party trademarks and service marks are the property of their respective owners. All other trademarks and service marks are the property of FMR LLC or its affiliated companies.