Architecting Resource-Constrained Systems

Connext Micro is the first connectivity software designed for resource-constrained applications in real-world systems. It provides a small-footprint connectivity framework for autonomous systems that have minimal memory and CPU power, and that may not even have an operating system. Connext Micro simultaneously satisfies demanding real-time performance requirements while meeting stringent resource constraints. By abstracting out low-level networking and communication details, it reduces development costs to minimize the amount of custom connectivity or integration code that developers would otherwise have to create.


Data-centric distributed architecture designed for resource-constrained systems.

Broad Hardware and Operating System Support

Provided as portable source code with minimal operating system dependencies; example ports available for all common CPUs and operating systems, as well as bare metal devices with no OS.

Decentralized System Architecture

Self-contained and easy-to-embed library; communication does not require centralized message brokers or daemon processes for low latency and high scalability with no single point of failure.

Deterministic Resource Utilization

All memory utilization is fixed based on resource constraints; no dynamic memory allocation is required; efficient serialization and compact wire representation also minimize CPU and network overhead.

DDS and DDS Security Standard Compliance

Standards-based solution based on Object Management Group (OMG®) Data Distribution Service (DDS®) programming interface and RTPS wire interoperability protocol. Complies with DDS Security and demonstrates interoperability with other DDS implementations.

Connext Micro in 2 Minutes

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Customer Snapshots

RTI Connext is proven in real-world applications across industries to connect and secure mission-critical, intelligent systems.

European Space Agency (ESA)

Read how ESA is using Connext to manage real-time communications between the International Space Station and a robot on a planet’s surface.

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GE Transportation

Learn how GE Transportation’s connected rail enterprise is using Connext, leveraging advanced software and powerful analytics to enhance visibility into the control architecture.

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Read how managing and analyzing equipment data in real-time delivers intelligent capabilities and predictive maintenance.

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Lockheed Martin

Learn how standards-based, next generation naval systems break vendor lock-in, drive interoperability and future-proofs architectural designs.

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We offer simple and fair pricing. Depending on the nature of your project, pricing options include Commercial, Research, Academic and Open Source licenses. We also offer a free 30-day trial.

Commercial Licenses

Pricing is based on the number of developers using Connext on your project. Distribution of applications that use RTI core products is royalty-free.

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Try a fully-functional version of the leading software connectivity framework for distributed systems, Connext, for 30 days.

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Research and University Program

RTI is committed to supporting universities in their research labs and classroom projects. We offer a free, one-year, renewable license to Connext® Secure for academic, noncommercial use.

Research and Non-Commercial

RTI offers special license programs for qualified research and non-commercial use. Download a free trial to apply.