Fern

About

APIs underpin the internet but are still painful to work with. They are often untyped, unstandardized, and out-of-sync across multiple sources of truth. Fern helps companies deliver SDKs and API documentation that they’re are proud to share with their customers. Since launching in 2023, we’ve been trusted by over 200 customers, including industry leaders like Square, Webflow, ElevenLabs, Auth0, and Intercom, to power their developer and agent experiences. We’re fewer than 40 people, based in Brooklyn, NY, and are building open source.

Founders

• 
  Deep Singhvi· Founder

  Deep is a YAML engineer at Fern. Before Fern, he worked as a software engineer at Palantir focusing on data integration at the Department of Defense and US Army.

  LinkedIn ↗

Product launches · 2 launches

• Fern Docs: Developer-friendly API Docs ↗▲ 1266Sep 8, 2024

  Build a "Stripe-level" docs website powered by OpenAPI

• Fern - SDKs for your API ⚡ ↗▲ 58Feb 10, 2023

  Auto-generate your client libraries, API reference, and server code

Change history · 11 recorded

1. July 12, 2026
   • YC partner updated08:01 PM
   • Relocated to New York City08:01 PM
   • Launches refreshed08:01 PM
   • Founder departed: Danny Sheridan08:01 PM
2. July 9, 2026
   • Location updated07:00 PM
3. June 28, 2026
   • Launches refreshed08:00 PM
   • YC partner updated08:00 PM
   • Founder profile updated08:00 PM
4. June 14, 2026
   • YC partner updated08:00 PM
   • Launches refreshed08:00 PM
   • Founder profile updated08:00 PM