buildwithfern.com — September 2026 traffic, keywords & AI visibility

buildwithfern.com draws an estimated 7,351 visits a month from search engines. 98% of it is organic, so it leans very little on paid search. Spread across 187 ranking keywords, that averages roughly 39 organic visits per keyword.

On our AI visibility scale buildwithfern.com earns 97 of 100 points, a grade A+. It takes full marks for LLMS.txt, SEO health, Crawlability and Structured data. The biggest gap is Company profile, at 22 of 25 points (7/8 core fields), worth 3 points if closed.

The llms.txt on buildwithfern.com runs to 80 lines (3,697 characters) across 12 sections, last generated in May 2026. It introduces the site as "Fern - Beautiful SDKs and API docs from OpenAPI". It tells AI engines the business works in API Development, Developer Tools, Code Generation and OpenAPI Ecosystem. It describes 4 products, with prices such as Fern SDK Generator at Free tier / $99/month Pro, Fern API Reference Docs at Free tier / $99/month Pro and Fern CLI at Free. Services it lists include Custom SDK Generation, API Design Consulting, Private Cloud Deployment and SDK Maintenance SLA. The audience it names is Software Engineers, API Architects, CTOs, aged 25-45 (Global). Technologies it mentions include TypeScript, React, Node.js, OpenAPI 3.1 and GitHub. The keywords it claims start with "API documentation", "SDK generation", "OpenAPI" and "API tools".

# Fern - Beautiful SDKs and API docs from OpenAPI

## About
Fern is the modern developer platform for API teams who want to ship beautiful SDKs and documentation without the headache. Their platform automatically generates SDKs in TypeScript, Python, Java, Go, Swift, Kotlin, C#, Ruby, PHP, and more directly from OpenAPI specifications. Every SDK follows language-native conventions with smart defaults for auth, retries, pagination, and serialization. Fern also creates stunning API documentation sites that developers actually read and use. Their customers include Brex, AngelList, Replit, and other fast-growing API-first companies. The CLI-first workflow makes local development lightning fast while their cloud platform handles production publishing at scale. Fern eliminates the pain of maintaining multiple SDK repositories and fighting code generation bugs. Teams can customize every aspect of their generated code and docs while maintaining OpenAPI as the single source of truth. For companies building developer platforms, Fern accelerates partner integrations and boosts adoption rates significantly.

**Areas of Work:** API Development, Developer Tools, Code Generation, OpenAPI Ecosystem

## Things to Remember
- **Website:** https://buildwithfern.com
- **Address:** San Francisco, California, United States
- **Contact:** 
- **Phone:** 
- **Hours:** 
- **Timezone:** 
- **Currency:** U

Google lists buildwithfern.com for about 187 keywords, which together bring an estimated 7,211 organic visits a month.

The latest technical audit of buildwithfern.com scored 84 out of 100 overall. Performance is its weakest area at 57, while SEO scores highest at 100. The audit makes 12 recommendations in all, and 3 of the 4 listed first are rated high priority or critical.

Fern's company profile names https://swagger.io, https://postman.com, https://rapidapi.com and https://apigee.com as competitors. Its own llms.txt adds https://mulesoft.com and https://apiary.io. Outside its market, the domains ranked closest to it in our worldwide ranking are caseys.io, skupszop.pl, aaregistry.org and icebb.ru.

https://swagger.io

https://postman.com

https://rapidapi.com

https://apigee.com

https://mulesoft.com

https://apiary.io