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go-kratos/kratos

📈 Trending★ 25,681GoAudience · developerComplexity · 4/5ActiveLicenseSetup · moderate

TLDR

Go framework for building microservices with built-in HTTP/gRPC, tracing, metrics, service discovery, and configuration management.

Mindmap

mindmap
  root((Kratos))
    What it does
      Microservice framework
      HTTP and gRPC
      Service discovery
      Request tracing
    Built-in features
      Metrics collection
      Structured logging
      Configuration management
      Auto-recovery
    Developer experience
      Code generation
      API documentation
      CLI tooling
      Project templates
    Tech foundation
      Protobuf definitions
      Cloud-native design
      Go idioms
      Production-grade

Things people build with this

USE CASE 1

Build a multi-service backend where each service handles a specific business function and communicates with others over the network.

USE CASE 2

Deploy a Go application to cloud infrastructure with automatic service discovery, monitoring, and crash recovery built in.

USE CASE 3

Generate API documentation and client code automatically from a single Protobuf definition shared across your services.

USE CASE 4

Set up request tracing and metrics collection across all your services without writing custom instrumentation code.

Tech stack

GogRPCHTTPProtobufSwagger

Getting it running

Difficulty · moderate Time to first run · 30min

Requires Go runtime and understanding of gRPC/Protobuf to generate service code.

Use freely for any purpose including commercial, as long as you keep the copyright notice.

In plain English

Kratos is a Go (Golang) framework for building microservices, a software architecture pattern where an application is split into small, independently running services that communicate over a network. It is designed for cloud-native environments, meaning it is built to run reliably on cloud infrastructure at scale. The framework bundles together the plumbing that every microservice needs but no one wants to write from scratch: network communication over HTTP and gRPC (a high-performance protocol commonly used between backend services), middleware for tracing requests across services, collecting metrics for monitoring, and automatically recovering from crashes. It also handles service discovery (so services can find each other), configuration management, structured logging, and request validation. API documentation in the form of Swagger UI is generated automatically. It uses Protobuf, a structured data definition format, as the central source of truth for defining APIs, errors, and validation rules, and generates code from those definitions. You would use Kratos when building a large Go backend that is broken into multiple separate services and needs production-grade reliability features without assembling them piece by piece. It is well suited for teams that want a batteries-included framework rather than building custom infrastructure. A command-line tool and project template are provided to get started quickly. The framework is written in Go and designed around Go idioms.

Copy-paste prompts

Prompt 1
Show me how to create a new Kratos microservice using the CLI tool and project template.
Prompt 2
How do I define a gRPC service in Kratos using Protobuf and have it generate the boilerplate code?
Prompt 3
Walk me through setting up service discovery in Kratos so my services can find and communicate with each other.
Prompt 4
How do I add request tracing and metrics collection to a Kratos microservice for production monitoring?
Prompt 5
Show me how to configure middleware for logging and validation in a Kratos application.
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Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.