Tailcall — independent third-party profile of a public API surface, by API Evangelist. Tailcall is a high-performance GraphQL API gateway and runtime that lets developers compose multiple upstream REST, gRPC, and GraphQL APIs into a unified GraphQL schema. Built in Rust, it offers declarative configuration via .graphql files with directives for HTT
graphql rust open-source caching rest api-gateway grpc batching apis-json api-composition graphql-runtime
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Updated
Aug 31, 2026