👨🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode, PayPal, AWS, Autodesk, and many more.
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 ⚙️
OpenAPI 3.x code generator for deterministic, type-safe SDKs and API tooling across languages and runtimes.
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 🦸
Best-in-class SDKs generated from OpenAPI, in your favorite languages
Generate typed Python API clients from OpenAPI 3.0/3.1 specs, built on unihttp. adaptix/pydantic/msgspec models, sync & async clients, mypy --strict-clean output
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 — schema-first builder pattern with dynamic, compile-time-checked field selection, one shared type per GraphQL type, and no query-first codegen loop.
Protoc plugin that generates a fully type-safe Vue 3 SDK from your Protobuf schemas — ConnectRPC client, TanStack Query (vue-query) hooks, query-key factory, and message initializers. The Vue-native alternative to connect-query.
A GitHub Action that installs the Fern CLI into a workflow using npm.
SDKgen is a powerful code generator to automatically build client SDKs for your REST API.
Comparing Swift SDKs from different SDK generator tools for the same OpenAPI spec.
Configuration for generating SDKs and Documentation.
Local-first OpenAPI workspace to import specs, test requests, compare contracts, mock APIs, and generate SDKs
Google Sheets as a real backend. Serialized writes, idempotent retries, typed SDKs.
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.
AI-powered API design, testing, documentation and monitoring platform for OpenAPI 3.x and GraphQL. Design visually or in code, validate, mock, generate SDKs for 7 languages, and track breaking changes — runs free with zero API keys.
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