Feature

Code & SDK Generation

Generate clients, types, or servers from the spec.

16 providers 209 APIs 11 declared variants

Tooling generates typed clients, server stubs, or schema types from the API description. Keeps integrator code in step with the contract instead of drifting after each release.

16 API providers on the APIs.io network offer code & sdk generation. The highest-rated are Figma, Amazon API Gateway, APIMatic, Factorial, Microsoft Azure Quantum.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 4 Complete, well-documented, and agent-ready
Figma Figma is a collaborative interface design tool with a comprehensive REST API for accessing and manipulating... 16 APIs 76.8 Amazon API Gateway Amazon API Gateway is a fully managed service that makes it easy to create, publish, maintain, monitor, and... 13 APIs 71.4 APIMatic APIMatic is a developer experience platform for APIs that specializes in automated SDK generation, API docu... 6 APIs 68.6 Factorial Factorial is an all-in-one HR, payroll, time, talent, finance, and IT management platform headquartered in ... 22 APIs 68.6
Strong 3 Solid coverage with minor gaps
Microsoft Azure Quantum Microsoft Azure Quantum is Microsoft's cloud quantum computing service — an open, multi-vendor platform tha... 8 APIs 64.3 WSO2 WSO2 API Manager is an open-source API management platform supporting REST, SOAP, and GraphQL with flexible... 90 APIs 62.6 Australia Post Australia Post is Australia's primary postal operator, offering a developer platform with REST APIs for e-c... 4 APIs 56.1
Developing 3 Usable, with meaningful gaps to close
Jetic Jetic is the first and only cloud-native API & Integration Platform based on Apache Camel. An iPaaS solutio... 5 APIs 55.0 LangWatch LangWatch is an open-source LLM observability, evaluation, and AI agent testing platform. Built around Open... 28 APIs 54.0 Fern Fern is an SDK generation and documentation platform designed for the AI era. It transforms OpenAPI, AsyncA... 1 API 53.8
Thin 4 Limited public surface area
Apache CXF Apache CXF is an open-source Java services framework governed by the Apache Software Foundation that helps ... 1 API 41.8 Apache Thrift Apache Thrift is a software framework for scalable cross-language services development. It provides an inte... 2 APIs 38.5 Turborepo Turborepo is a high-performance build system for JavaScript and TypeScript codebases, built by Vercel and w... 2 APIs 36.3 AutoRest AutoRest is an open source tool from Microsoft (MIT License) that generates client libraries for accessing ... 6 APIs 35.8
Emerging 2 Early or largely undocumented
Sparx Enterprise Architect Sparx Enterprise Architect is a comprehensive modeling, design, and management platform for enterprise arch... 4 APIs 27.9 API Dash API Dash is a beautiful AI-powered open-source cross-platform API client built with Flutter, available on D... 1 API 23.3

What Providers Actually Declared

This feature is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Code GenerationCopilot in Microsoft Quantum — AI-assisted Q# code generation and chemistry workflows on quantum.microsoft.comCross-Language Code GenerationDev Mode for handoff and code generationIdiomatic SDK GenerationMulti-Language Code GenerationOfficially generated SDKs for Ruby, Python, Java, PHP, TypeScript (axios), and Node.js serverOpenAPI definitions available for Locations and Delivery Partner APIs; Swagger code generation supportedSDK Generation`better-agents` standards repository for agent project scaffoldingturbo gen scaffolding for new apps and packages

Scroll for all 11