Read 11 Fern reviews and testimonials from customers, explore 5 case studies and customer success stories, and watch customer videos to see why companies chose Fern as their undefined

Fern is an open-source platform for generating software development kits (SDKs) and application programming interface (API) documentation. Developer-focused companies like Square, Webflow, Intercom, and more use Fern to streamline their development process, typically starting by uploading an API specification (OpenAPI, AsyncAPI, OpenRPC, and more.

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Customer Rating Review Scorebased on 229 reference ratings
4.7/5.0 (229)

11Testimonials

  • "Fern is a mission-critical part of Candid's API. Keeping our docs, SDKs, and server implementation in sync was a nightmare. Fern enabled us to adopt API-first development — our engineers update the spec, run fern generate, and everything stays perfectly aligned."

    Steve YaziciogluHead of Engineering
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5 Case Studies

  • How Candid sped up API development by 50% by going schema first

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Read Fern Reviews, Testimonials & Customer References from 11 real Fern customers.

Browse Fern Case Studies, Customer Success Stories, & Customer References from 5 businesses that use Fern.

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