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
Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once
Universal API management for REST, GraphQL, gRPC & async
The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP API
GO Simple Tunnel - a simple tunnel written in golang
Intercept, modify, and debug HTTP(S) requests effortlessly
Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.
Build scalable authorization in minutes, not months
The Cloud-Native API Gateway and AI Gateway
Git-native feature management for developers
Jupiter: Governance-oriented Microservice Framework.
Catch API bugs before your users do
🕸️ GraphQL Federation Framework for any API services such as REST, OpenAPI, Swagger, SOAP, gRPC and more...
Surging is a micro-service engine that provides a lightweight, high-performance, modular RPC request pipeline. support Event-based Asynchronous Pattern and rea
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
Synchronized viewing, theater, live streaming, video
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
基于golang开发的网关。具有各种插件，可以自行扩展，即插即用。此外，它可以快速帮助企业管理API服务，提高API服务的稳定性和安全性。
A serverless application for viewing and synchronizing photos to cloud storage
Chapar is a simple and easy to use api testing tools aims to help developers to test their api endpoints. it support http and grpc protocols.
Essential Building Blocks for Scala
Based on the proxy gateway service of dubbo-go, it solves the problem that the external protocol calls the internal Dubbo cluster. At present, it supports HTTP
Related tags
Frequently asked questions
How many open source grpc projects are there?
This registry tracks 28 projects tagged grpc, with 257,958 GitHub stars between them. The most-adopted is Insomnia at 40,111 stars.
Are these grpc projects free to use?
Yes — 24 of the 28 carry an explicit open-source licence across 6 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?
26 of the 28 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.