Fern API
UnclaimedGenerate SDKs and API documentation from your API specification, elevating your developer experience.
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TL;DR - Fern API
- Automates SDK generation for multiple languages from API specs.
- Generates comprehensive, interactive, and customizable API documentation.
- Improves developer experience and saves engineering time by streamlining API consumption.
Pricing: Paid only
Best for: Enterprises & pros
Pros & Cons
Pros
- Saves significant engineering time by automating SDK and documentation generation.
- Ensures language-native, type-safe, and idiomatic SDKs.
- Provides comprehensive and interactive API documentation with advanced features.
- Supports a wide range of API specification formats and programming languages.
- Allows for customization and extension of generated code and documentation.
Cons
- No explicit free tier mentioned on the pricing page.
- Requires an existing API specification to get started.
- Swift and Rust SDK generation are listed as 'coming soon'.
Key Features
SDK Generation (TypeScript, Python, Go, Java, Ruby, C#, PHP)Support for OpenAPI, AsyncAPI, OpenRPC, gRPC, Fern Definition specsCustom code extension for generated SDKsAutomated package publishing to registries (npm, pypi, maven)OAuth 2.0 support in SDKsServer-sent events (SSE) support in SDKsAutomatic pagination in SDKsPolymorphism (Unions) handling in SDKs
Pricing Plans
Enterprise (SDKs)
Contact us
- Partner with Fern to perfect OpenAPI spec
- Launch SDKs that scale to millions of downloads
Enterprise (Docs)
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- Custom theme creation
- Content migration
- Site launch
About Fern API
By Toolradar Team·
Fern is a platform that automates the generation of client libraries (SDKs) and comprehensive API documentation directly from your API specification. It supports various formats like OpenAPI, AsyncAPI, OpenRPC, gRPC, and its own Fern Definition. The generated SDKs are designed to be language-native, type-safe, and include features like OAuth 2.0, server-sent events, and automatic pagination, saving engineering time and improving developer experience.
Beyond SDK generation, Fern also provides a robust documentation platform. This platform allows users to create stunning, SEO-optimized API docs with features like API key injection, access control, versioning, and interactive API explorers. It supports customization with JavaScript, CSS, and React components, and even includes an AI assistant trained on your documentation. Fern aims to streamline the process of making APIs consumable and delightful for developers, reducing the manual effort involved in maintaining SDKs and documentation.
This tool is ideal for companies and development teams looking to improve the developer experience of their APIs by providing high-quality, automatically generated SDKs and interactive documentation. It helps reduce the overhead of maintaining client libraries across multiple languages and ensures documentation is always up-to-date with the API.
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Fern API FAQ
What is Fern API?
Fern is a platform that generates high-quality, language-native SDKs (client libraries) and comprehensive API documentation directly from your API specification. It aims to improve the developer experience of consuming your APIs.
How much does Fern API cost?
Specific pricing details are not publicly listed on the website; users are encouraged to sign in or book a demo to learn more. However, the presence of a 'Pricing' page without a free tier suggests it is a paid service.
Is Fern API free?
Based on the available information, Fern does not appear to offer a free tier. Pricing details are available upon request or demo.
Who is Fern API for?
Fern API is designed for companies and development teams that want to provide an excellent developer experience for their APIs. This includes API providers who need to generate and maintain client libraries across multiple programming languages and create interactive, up-to-date documentation.
Source: buildwithfern.com