Swagger Codegen

Swagger Codegen is an open-source template-driven code generation tool that automatically generates client libraries, server stubs, and API documentation from OpenAPI Specification definitions. It supports 40+ client languages and 20+ server frameworks. Available as a CLI, Docker image, Maven/Gradle plugin, and online REST API at generator3.swagger.io.

Swagger Codegen publishes 4 APIs on the APIs.io network, including Generation API, Languages API, Options API, and 1 more. Tagged areas include Client Libraries, Code Generation, Open Source, OpenAPI, and SDK.

The Swagger Codegen catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Swagger Codegen’s developer surface includes developer portal, documentation, release notes, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

47.8/100 developing ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1

AccessFreemium

5 APIs

Client LibrariesCode GenerationOpen SourceOpenAPISDK

Kin Score

Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1

Composite quality — 47.8/100 · developing

Contract Quality 16.1 / 25

Developer Ergonomics 3.5 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 6.8 / 13

Governance 7.0 / 12

Discoverability 6.5 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/swagger-codegen: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Swagger Codegen Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Examples 2

Example request and response payloads for these APIs.

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubRepository

Maven Plugin

Gradle Plugin

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Issues

Issues

ReleaseNotes

ReleaseNotes

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Docker

Docker

Source (apis.yml)

aid: swagger-codegen
name: Swagger Codegen
description: Swagger Codegen is an open-source template-driven code generation tool that automatically generates client libraries,
  server stubs, and API documentation from OpenAPI Specification definitions. It supports 40+ client languages and 20+ server
  frameworks. Available as a CLI, Docker image, Maven/Gradle plugin, and online REST API at generator3.swagger.io.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/swagger-codegen.png
tags:
- Client Libraries
- Code Generation
- Open Source
- OpenAPI
- SDK
url: https://raw.githubusercontent.com/api-evangelist/swagger-codegen/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.19'
apis:
- aid: swagger-codegen:swagger-codegen-cli
  name: Swagger Codegen CLI
  description: The Swagger Codegen command-line interface for generating code artifacts locally. Available as a JAR file and
    Docker image. Supports the same generators as the online API with additional template customization.
  humanURL: https://github.com/swagger-api/swagger-codegen#getting-started
  tags:
  - CLI
  - Code Generation
  - Command Line
  - Docker
  properties:
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: GettingStarted
    url: https://github.com/swagger-api/swagger-codegen#getting-started
  - type: Docker
    url: https://hub.docker.com/r/swaggerapi/swagger-codegen-cli-v3
  - type: Package
    url: https://mvnrepository.com/artifact/io.swagger.codegen.v3/swagger-codegen-cli
- aid: swagger-codegen:swagger-codegen-generation-api
  name: Swagger Codegen Generation API
  description: Code generation endpoints for clients, servers, and documentation
  humanURL: https://generator3.swagger.io/
  baseURL: https://generator3.swagger.io
  tags:
  - Generation
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-generation-api-openapi.yml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: GitHubRepository
    url: https://github.com/swagger-api/swagger-codegen
- aid: swagger-codegen:swagger-codegen-languages-api
  name: Swagger Codegen Languages API
  description: Discover available generator languages and types
  humanURL: https://generator3.swagger.io/
  baseURL: https://generator3.swagger.io
  tags:
  - Languages
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-languages-api-openapi.yml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: GitHubRepository
    url: https://github.com/swagger-api/swagger-codegen
- aid: swagger-codegen:swagger-codegen-options-api
  name: Swagger Codegen Options API
  description: Retrieve per-language configuration options
  humanURL: https://generator3.swagger.io/
  baseURL: https://generator3.swagger.io
  tags:
  - Options
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-options-api-openapi.yml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: GitHubRepository
    url: https://github.com/swagger-api/swagger-codegen
- aid: swagger-codegen:swagger-codegen-utilities-api
  name: Swagger Codegen Utilities API
  description: Template rendering and intermediate model generation
  humanURL: https://generator3.swagger.io/
  baseURL: https://generator3.swagger.io
  tags:
  - Utilities
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-utilities-api-openapi.yml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: GitHubRepository
    url: https://github.com/swagger-api/swagger-codegen
common:
- type: AgenticAccess
  url: agentic-access/swagger-codegen-agentic-access.yml
- type: DomainSecurity
  url: security/swagger-codegen-domain-security.yml
- type: Portal
  url: https://swagger.io/tools/swagger-codegen/
- type: Documentation
  url: https://github.com/swagger-api/swagger-codegen/wiki
- type: Website
  url: https://swagger.io/
- type: GitHubOrganization
  url: https://github.com/swagger-api
- type: GitHubRepository
  url: https://github.com/swagger-api/swagger-codegen
- type: Issues
  url: https://github.com/swagger-api/swagger-codegen/issues
- type: ReleaseNotes
  url: https://github.com/swagger-api/swagger-codegen/releases
- type: License
  url: https://github.com/swagger-api/swagger-codegen/blob/master/LICENSE
- type: Docker
  url: https://hub.docker.com/r/swaggerapi/swagger-codegen-cli-v3
- type: Maven Plugin
  url: https://mvnrepository.com/artifact/io.swagger.codegen.v3/swagger-codegen-maven-plugin
- type: Gradle Plugin
  url: https://plugins.gradle.org/plugin/org.hidetake.swagger.generator
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Swagger Codegen

APIs 5

Open Collections 1

Pricing Plans 1