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Fern: Generate SDKs and API docs effortlessly. Automate your developer experience with API-first tools.
Fern is a powerful platform designed to streamline the creation and maintenance of API documentation and client libraries (SDKs). By adopting an API-first approach, Fern empowers development teams to generate high-quality, language-native SDKs and interactive API documentation from a single API specification. This significantly enhances the developer experience, reduces engineering overhead, and ensures consistency across your API ecosystem.
Fern provides a comprehensive solution for API providers looking to offer exceptional developer resources. It automates the generation of client libraries in multiple programming languages and creates beautiful, brand-aligned API documentation. Fern's core philosophy is to "generate once, use everywhere," ensuring that your API specification is the single source of truth for all your developer-facing assets.
The platform offers several standout features:
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Pricing Model
Supported Platforms
Supported Languages
Automatically generate client libraries in multiple programming languages from your API specification, ensuring idiomatic code and consistency.
Create beautiful, interactive, and SEO-optimized API documentation tailored to your brand, with features like API key injection and AI search.
Use your API definition (OpenAPI, gRPC, etc.) as the single source of truth to keep SDKs, docs, and implementation perfectly synchronized.
Supports a wide array of languages including TypeScript, Python, Go, Java, C#, PHP, and Ruby, with Swift and Rust coming soon.
Integrate SDK generation into your CI/CD pipeline for automated updates and releases, streamlining your development workflow.
Enhance documentation with features like versioning, access control, federated authentication, and AI-powered chat for quick answers.
