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 7 APIs on the APIs.io network, including Generation API, Languages API, Options API, and 4 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, CLI, authentication, changelog, sandbox, and 34 more developer resources.

🌐 Visit website 📡 Source on GitHub

56.2/100 strong ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemium

3 APIs

Client Libraries Code Generation Open-Source OpenAPI SDK

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 56.2/100 · strong

Contract Quality 11.8 / 23

Developer Ergonomics 14.5 / 18

Access Clarity 9.5 / 18

Operational Transparency 6.2 / 12

Contract Governance 3.4 / 11

Discoverability 5.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. 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. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 8

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

Swagger Codegen CLI

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 a...

Swagger Codegen Generation API

Code generation endpoints for clients, servers, and documentation

Swagger Codegen Languages API

Discover available generator languages and types

Swagger Codegen Options API

Retrieve per-language configuration options

Swagger Codegen Utilities API

Template rendering and intermediate model generation

Swagger Codegen Clients API

The clients API from Swagger Codegen — 9 operation(s) for clients.

Swagger Codegen Documentation API

The documentation API from Swagger Codegen — 2 operation(s) for documentation.

Swagger Codegen Servers API

The servers API from Swagger Codegen — 4 operation(s) for servers.

Scroll for all 8

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Swagger Generator Generation API

OPEN COLLECTION

Swagger Generator Generation Languages API

OPEN COLLECTION

Swagger Generator Generation Options API

OPEN COLLECTION

Swagger Generator Generation Utilities API

OPEN COLLECTION

Swagger Generator API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Swagger Codegen Plans Pricing

3 plans

PLANS

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.

Swagger Codegen Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Swagger Codegen Context

0 classes · 27 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Swagger Codegen API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Swagger Codegen API Rules

9 rules · 4 errors 5 warnings

SPECTRAL

JSON Schema 1

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

Swagger Codegen Generation Request

6 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Swagger Codegen Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Swagger Codegen Generate Python Client Example

3 fields

EXAMPLE

Swagger Codegen List Languages Example

3 fields

EXAMPLE

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Swagger Codegen Authentication

0 schemes

SECURITY

Swagger Codegen Domain Security

TLSv1.3 · DMARC

SECURITY

Swagger Codegen Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Swagger Codegen Trust Center

SOC 2, ISO/IEC 27001, GDPR, CCPA, NIST CSF

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Swagger Codegen Agentic Access

10 operations · 3 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Portal

Portal

Sandbox

Sandbox

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgenticAccess

AgentSkill

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

DataModel

Conformance

Build 8

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubRepository

Maven Plugin

Gradle Plugin

Packages

SDKs

CLI

Scroll for all 8

Access & Security 6

Authentication, authorization, and security posture

DomainSecurity

Authentication

Compliance

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 6

Status, limits, changes, and where to get help

Issues

ReleaseNotes

Deprecation

StatusPage

ChangeLog

Support

Commercial 3

Pricing, plans, and the legal terms of use

License

License

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

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
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
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
tags_raw:
- 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: '2026-08-06'
specificationVersion: '0.23'
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/api
  tags:
  - Generation
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-generation-api-openapi.yml
  - type: Overlay
    url: overlays/swagger-codegen-generation-api-overlay.yaml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: OpenAPI Original
    url: openapi/_original/swagger-generator-v3-openapi-original.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/api
  tags:
  - Language
  tags_raw:
  - Languages
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-languages-api-openapi.yml
  - type: Overlay
    url: overlays/swagger-codegen-languages-api-overlay.yaml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: OpenAPI Original
    url: openapi/_original/swagger-generator-v3-openapi-original.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/api
  tags:
  - Options
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-options-api-openapi.yml
  - type: Overlay
    url: overlays/swagger-codegen-options-api-overlay.yaml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: OpenAPI Original
    url: openapi/_original/swagger-generator-v3-openapi-original.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/api
  tags:
  - Utilities
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-utilities-api-openapi.yml
  - type: Overlay
    url: overlays/swagger-codegen-utilities-api-overlay.yaml
  - type: Documentation
    url: https://github.com/swagger-api/swagger-codegen/wiki
  - type: OpenAPI Source
    url: https://generator3.swagger.io/openapi.json
  - type: OpenAPI Original
    url: openapi/_original/swagger-generator-v3-openapi-original.json
  - type: GitHubRepository
    url: https://github.com/swagger-api/swagger-codegen
- aid: swagger-codegen:swagger-codegen-clients-api
  name: Swagger Codegen Clients API
  description: The clients API from Swagger Codegen — 9 operation(s) for clients.
  humanURL: https://github.com/swagger-api/swagger-codegen#getting-started
  baseURL: https://generator3.swagger.io/api
  tags:
  - Clients
  tags_raw:
  - clients
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-clients-api-openapi.yml
- aid: swagger-codegen:swagger-codegen-documentation-api
  name: Swagger Codegen Documentation API
  description: The documentation API from Swagger Codegen — 2 operation(s) for documentation.
  humanURL: https://github.com/swagger-api/swagger-codegen#getting-started
  baseURL: https://generator3.swagger.io/api
  tags:
  - Documentation
  tags_raw:
  - documentation
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-documentation-api-openapi.yml
- aid: swagger-codegen:swagger-codegen-servers-api
  name: Swagger Codegen Servers API
  description: The servers API from Swagger Codegen — 4 operation(s) for servers.
  humanURL: https://github.com/swagger-api/swagger-codegen#getting-started
  baseURL: https://generator3.swagger.io/api
  tags:
  - Servers
  tags_raw:
  - servers
  properties:
  - type: OpenAPI
    url: openapi/swagger-codegen-servers-api-openapi.yml
common:
- type: CodeOfConduct
  url: https://github.com/swagger-api/swagger-codegen/blob/master/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/swagger-api/swagger-codegen/blob/master/CONTRIBUTING.md
- type: X-MCPServerCandidate
  url: mcp/swagger-codegen-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- 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
- type: Packages
  url: packages/swagger-codegen-packages.yml
- type: SDKs
  url: packages/swagger-codegen-packages.yml
- type: CLI
  url: cli/swagger-codegen-cli.yml
- type: Authentication
  url: authentication/swagger-codegen-authentication.yml
- type: Conventions
  url: conventions/swagger-codegen-conventions.yml
- type: ErrorCatalog
  url: errors/swagger-codegen-problem-types.yml
- type: Lifecycle
  url: lifecycle/swagger-codegen-lifecycle.yml
- type: Deprecation
  url: lifecycle/swagger-codegen-lifecycle.yml
- type: StatusPage
  url: https://status.smartbear.com/
- type: ChangeLog
  url: changelog/swagger-codegen-changelog.yml
- type: DataModel
  url: data-model/swagger-codegen-data-model.yml
- type: Conformance
  url: conformance/swagger-codegen-conformance.yml
- type: Compliance
  url: https://trust.smartbear.com/
- type: TrustCenter
  url: security/swagger-codegen-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/swagger-codegen-vulnerability-disclosure.yml
- type: Security
  url: https://smartbear.com/security/
- type: Sandbox
  url: sandbox/swagger-codegen-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/swagger-codegen-llms.txt
- type: APIReference
  url: https://generator3.swagger.io/
- type: GettingStarted
  url: https://github.com/swagger-api/swagger-codegen#getting-started
- type: Support
  url: https://swagger.io/support/
- type: Blog
  url: https://swagger.io/blog/
- type: TermsOfService
  url: https://smartbear.com/terms-of-use/
- type: PrivacyPolicy
  url: https://smartbear.com/privacy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-06'
  status: enriched
  artifacts_added: 25
  pass: local-v1
x-parent: swagger
x-relationship: product

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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