Fern

𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝗙𝗲𝗿𝗻’𝘀 𝗦𝘄𝗶𝗳𝘁 𝗦𝗗𝗞 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗼𝗿 Instantly generate a production-ready Swift SDK from your API spec — with zero dependencies, async/await support, and Swift code that feels handwritten. Built for the Apple ecosystem (iOS, macOS, watchOS, tvOS) to help developers integrate faster. “Fern nailed the details — namespacing, typing and nullables, async/await, and refreshable auth. The developer experience is fantastic,” said Aaron Carver, CTO at chrt. Read more: https://lnkd.in/e4ttWGJ2 #sdkgenerator #apigenerator #api

Talk about being AI 💊'd . We spent $20K on a fleet of AI agents and merged over 900 PRs to move Fern Docs from Next.js to Astro with zero regressions. I learned a LOT from this. AI Agents are REALLY good now but need a very strong hand to direct them. End-to-end tests are critical for building a software factory like this, and let us merge large AI generated PRs with a lot more confidence. And trying things out is so cheap, its better to try out multiple well-instrumented approaches and throw them away than try and have theoretical debates. Hot take: reading the code the agent generates is basically not worth it most of the time. You want proof of functionality with tests, videos, etc. For customers, I'm happy to say that now every Fern site is now prebuilt as static pages: - Mobile Lighthouse scores went from an average of 60 to 98 🚀 - Pages are 2–4x smaller, and almost 10x less Javascript parsing - Pages are ALWAYS fast, even right after a publish. They respond in 0.45s down from 2.7s - Local dev: cold start went from 43.6s to 26.4s, and memory usage cut in HALF Read more here: https://lnkd.in/gdds8tqH

Unleash swapped a Kapa AI search plugin for Fern's native AI search. Better discoverability and more accurate answers took them from 40 questions a month to over 600. See how Unleash got to 90%+ AI search resolution rate.

"Using Fern means that I spend more of my time writing and building cool things for my customers." - CT S., Director of Documentation at Payabli

Unleash switched from Docusaurus and Kapa to Fern to build docs for humans and agents. AI search engagement is now up 14x and diverts 90+% of queries from support queues. "Fern nails the AI readiness piece better than any other docs platform we've seen." — Melinda Fekete, Documentation Lead at Unleash How? Clean markdown, auto-generated llms.txt, and language-specific filtering for agents are all built in with Fern.

Payabli's APIs change daily. Their docs keep up because code examples live in one place: their spec. Using Fern's built-in request/response examples, Payabli defines named examples with realistic data once in their API definition and references them into the docs. They now save 200+ hours a year on example maintenance.