Apollo Graph is a company that provides open-source and commercial graph query language (GraphQL) technologies. Its products include GraphOS, software to deliver a self-service GraphQL API platform; Apollo Client, a state management library for JavaScript to manage both local and remote data with GraphQL; and Apollo Server, an open-source server that allows the developer to build a production-ready, self-documenting GraphQL API that can use data from any source. The company caters to media and streaming, financial services, retail, and travel industries.