oapi-codegen/oapi-codegen

Health v2 · maintenance only

Adoption not part of the score

8534 stars · 1056 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

oapi-codegen is a command-line tool and Go library that generates Go server boilerplate, API clients, and HTTP models from OpenAPI 3.0/3.1 specifications. It reduces boilerplate so developers can focus on business logic while keeping generated code idiomatic and simple.

Use cases

• generate go server stubs from an openapi 3 spec
• create a typed go rest api client from swagger
• generate go models from openapi yaml
• spec-first api development in go
• split large openapi specs into multiple go packages
• validate openapi spec types against go type system

When to choose

• you build Go services or clients against an OpenAPI 3.0/3.1 spec and want spec-first codegen
• you want idiomatic, readable generated Go code rather than heavily abstracted output
• you need server boilerplate for popular Go routers or a typed HTTP client

When to avoid

• your API is defined in Swagger 2.0 rather than OpenAPI 3.x
• you work outside the Go ecosystem
• you prefer runtime schema validation over generated code

Facets

cli-tool · maturity active

api-framework http-client http-server developer-tools developer-tools apis web-development backend go cli cross-platform openapi openapi3 swagger rest-api codegen go code-generation

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