swagger-api/swagger-codegen

swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition. observed · 2026-08-28

github.com/swagger-api/swagger-codegen · homepage · Mustache · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

98/100

Activity 98
Release rhythm 96
Longevity 100

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

gap_med: 14.5
age_days: 5537
days_rel: 29
days_push: 15
n_releases_24m: 29

Full methodology

Adoption not part of the score

17780 stars · 5966 forks observed · 2026-08-28

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

Swagger Codegen is a template-driven code generator that parses OpenAPI/Swagger definitions to produce API client SDKs, server stubs, and documentation in dozens of languages. It is the 2.X/3.X line of the Swagger code generation toolchain, maintained by SmartBear's open source project.

Use cases

generate a Java or Python client SDK from an OpenAPI spec
scaffold server stubs for a REST API from a Swagger definition
produce API documentation from an OpenAPI 2.0 file
generate TypeScript or Go API clients for a microservice
bootstrap backend implementations in Spring, Flask, or Go from an API contract
automate SDK generation in a CI pipeline from an OpenAPI definition

When to choose

you need client SDKs or server stubs in many languages from an OpenAPI/Swagger 2.0 spec
you want a mature, widely adopted generator with extensive language support
you need customizable Mustache templates for code generation

When to avoid

your spec is OpenAPI 3.1, which is better supported by OpenAPI Generator
you only need interactive API documentation rather than generated code
you want actively evolving features - the project is in maintenance mode with successors available

Facets

cli-tool · maturity maintenance

sdk api-framework documentation templating developer-tools apis web-development developer-tools documentation cross-platform cli jvm openapi swagger code-generation client-sdk server-stubs mustache-templates rest-api

4 sources

readme: https://github.com/swagger-api/swagger-codegen · fetched 2026-08-28 · 0a28603710d6
homepage: http://swagger.io · fetched 2026-08-29 · 4f1f57a23ce3
site_page: https://swagger.io/docs · fetched 2026-08-29 · bc9e768d7742
site_page: https://swagger.io/product/portal · fetched 2026-08-29 · a39114d3b402

Member repositories

Repository	Role	Health v2
swagger-api/swagger-codegen	main	98

For agents

markdown · JSON · MCP: product_card(name="swagger-api/swagger-codegen")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem