Input OpenAPI. Output SDKs and Docs.

Generates a PHP SDK based on a WSDL, simple and powerful, WSDL to PHP

Generating SDKs for multiple programming languages and platforms ⚙️

The open-source Stainless — point your existing stainless.yml at it and get the same idiomatic Python SDK. Zero migration. No SaaS.

easytemplate is Go's text/template with 🦸 JS super powers 🦸

JS-SDKGen is a Javascript SDK Code generator for your API. It uses apidoc definitions from swagger or apidocjs and generates the Javascript SDK automatically. Along with SDK, it also generates SDK usage documentation, thus saving hours of work for you in writing SDK & usage documentation

Generate fully typed GraphQL client SDKs for Go and TypeScript — builder pattern with dynamic field selection, one shared type per GraphQL type, no query-first codegen loop

SDKgen is a powerful code generator to automatically build client SDKs for your REST API.

A GitHub Action that installs the Fern CLI into a workflow using npm.

One spec, every SDK. Self-hosted, air-gapped OpenAPI SDK generator: idiomatic SDKs in 6 languages (TS/Python/Go/Java/Ruby/C#) + an MCP server, zero runtime deps, verified on every build.

Configuration for generating SDKs and Documentation.

Google Sheets as a real backend. Serialized writes, idempotent retries, typed SDKs.

An opinionated OpenAPI normalizer and code generator for creating clean, minimal, and modern client SDKs.

OpenAPI SDK generator for humans. Type-safe, async-first, developer-friendly.

Comparing Swift SDKs from different SDK generator tools for the same OpenAPI spec.

[Demo] A Fern configuration that generates Docs & SDKs for Stripe's API.

Kronup SDK Generator

Generators for complex SDKs

🔍 Record browser sessions → Auto-discover hidden APIs → Export TypeScript SDK + OpenAPI 3.0 + MCP Server. Local-first, privacy-safe.

Automatically generate TypeScript API clients and React hooks from Express/Fastify routes. Save 4-6 hours per project!