At River API, we help UK companies build the technical backbone their business needs to succeed. Whether it’s weaving disconnected systems, rethinking complex integrations, or powering up your stack with API integrations and AI, our experts bring structure to the chaos and precision to the plan.
We’re a UK-based API and AI development company with distributed engineering teams across Europe. Our software team specialises in rebuilding failed architectures, delivering essential integrations under pressure, and shipping clean, stable APIs for platforms that can’t afford to fail.
From fast-growing SaaS startups to established enterprises, we work with companies ready to scale. You bring the business case. River API brings the team, the architecture, and the execution.
The stack? Deep. We speak Python, Node.js, FastAPI, Postgres, Kafka, AWS, LangChain, GraphQL, and enough experience with legacy systems to know exactly where things break and how to fix them.