Apollo GraphQL

Apollo GraphQL builds open-source and commercial GraphQL technologies and a platform for API orchestration, used to power modern applications and AI agents. The company is headquartered in San Francisco and is backed by investors including Andreessen Horowitz, Matrix Partners and Insight Partners. Its software has been downloaded more than 1 billion times.

The flagship product, Apollo GraphOS, unifies APIs into a composable graph, letting teams query data from across their systems and ship new features with enterprise-grade security and governance. Around it sit Apollo Server, an open-source framework for building GraphQL APIs; Apollo Client, a library for state management in applications; Apollo Connectors, which provides declarative REST-to-GraphQL orchestration; and the GraphOS Router, a high-performance runtime execution engine for GraphQL. The Apollo MCP Server connects AI agents to existing APIs via the Model Context Protocol.

The work spans GraphQL, API orchestration and management, graph-based software architecture, runtime execution and routing, REST-to-GraphQL integration, and enterprise security and governance. Customers include Airbnb and Ticketmaster, and the company serves sectors ranging from travel and live entertainment to web and mobile applications and enterprise digital transformation. Its stated focus is on enabling developers and engineering teams to build better software faster.