Open source grpc projects
Every project in the registry tagged grpc, ranked by real GitHub adoption.
Powerful API development and testing made effortless
Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
gRPC to JSON proxy generator following the gRPC HTTP spec
Fast, secure, offline API client with Git integration
AI-native vector database for intuitive applications
eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and hu
Universal API management for REST, GraphQL, gRPC & async
Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.
Intercept, modify, and debug HTTP(S) requests effortlessly
Build scalable authorization in minutes, not months
The Cloud-Native API Gateway and AI Gateway
Git-native feature management for developers
A powerful and easy-to-use Go development framework that enables you to effortlessly build stable, reliable, and high-performance backend services with a "low-c
Terminal API client for HTTP, GraphQL and gRPC. Plain .http files you can diff and version, with workflows, mocks, profiling, tracing, OpenAPI import, SSH tunne
Related tags
Frequently asked questions
How many open source grpc projects are there?
This registry tracks 15 projects tagged grpc, with 206,943 GitHub stars between them. The most-adopted is Insomnia at 40,021 stars.
Are these grpc projects free to use?
Yes — 11 of the 15 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which grpc project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these grpc projects still maintained?
14 of the 15 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.