From startups to public companies, Fern powers your API developer experience.
Publish client libraries in popular languages.
Point-of-sale and payment processing platform
We evaluated several SDK generators and Fern stood out for its clean, language-native, and thoughtfully architected code. The Fern team partnered with us every step of the way including OpenAPI improvements, alpha releases and launch announcements.
IoT platform for fleet and operations management
Identity and access management platform
Voice generation and parsing AI platform
No-code website builder with CMS management
Feature flag management platform
The Fern team helped us offer a top-tier developer experience. They embedded with our docs team, migrated over 700+ pages of content, and created an intuitive information architecture across API reference, guides and SDK reference.
Collaborative platform for video review and feedback
Enterprise LLM platform
Partnering with Fern, we went from 1 SDK → 4 SDKs and are set up to offer whatever language developers ask for next. Fern also generates our documentation website that perfectly matches Cohere's unique brand identity.
Developer platform for speech-to-text and audio intelligence
Neural search-as-a-service for enterprises
Vector database for AI applications
API for healthcare payments and insurance
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.
APIs for speech-to-text and speech understanding models
Unified API for customer-facing integrations with LLM applications
We used an alternative SDK generator, OpenAPI Generator, for years, and customers constantly complained. Since adopting Fern, customers have migrated rapidly to our new SDKs and have been blown away by the quality.
Payment processing and merchant services platform
Voice AI infrastructure for developers
Data import and onboarding platform
Payments infrastructure and monetization platform for software companies
Fern is absolutely elite. Fern made it easy for us to single-source our developer resources, from code examples in the docs to our Postman Collection and SDKs. Migrating to Fern was the smoothest migration I've ever experienced, and we were live in under a month.
Developer documentation tailored to your brand.
Voice generation and parsing AI platform
No-code website builder with CMS management
Peer-to-peer payments and banking app for sending, spending, and investing money
Feature flag management platform
The Fern team helped us offer a top-tier developer experience. They embedded with our docs team, migrated over 700+ pages of content, and created an intuitive information architecture across API reference, guides and SDK reference.
Buy now, pay later payment platform
Digital identity verification and authentication platform
API gateway for accessing open and proprietary LLMs
Collaborative platform for video review and feedback
AI search platform that delivers accurate, source-grounded answers
Identity verification and compliance platform
Enterprise LLM platform
Partnering with Fern, we went from 1 SDK → 4 SDKs and are set up to offer whatever language developers ask for next. Fern also generates our documentation website that perfectly matches Cohere's unique brand identity.
Developer platform for speech-to-text and audio intelligence
Intelligent document processing platform
Blockchain data and compliance platform
AI customer support automation platform
Financial management platform for startups
Fern has been instrumental in delivering an incredible onboarding experience to our customers. We often get compliments in sales calls and during new pilot onboardings about the quality of our docs.
AI-driven threat intelligence platform
API for healthcare payments and insurance
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.
APIs for speech-to-text and speech understanding models
Payment processing and merchant services platform
Voice AI infrastructure for developers
Data import and onboarding platform
Payments infrastructure and monetization platform for software companies
Fern is absolutely elite. Fern made it easy for us to single-source our developer resources, from code examples in the docs to our Postman Collection and SDKs. Migrating to Fern was the smoothest migration I've ever experienced, and we were live in under a month.
Newsletter publishing and growth platform
Instant answers for your docs with AI search.
No-code website builder with CMS management
Peer-to-peer payments and banking app for sending, spending, and investing money
Buy now, pay later payment platform
API gateway for accessing open and proprietary LLMs
APIs for speech-to-text and speech understanding models
Voice AI infrastructure for developers
Payments infrastructure and monetization platform for software companies
Fern is absolutely elite. Fern made it easy for us to single-source our developer resources, from code examples in the docs to our Postman Collection and SDKs. Migrating to Fern was the smoothest migration I've ever experienced, and we were live in under a month.
