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§ Private Profile · New York City, NY, USA
A platform for API infrastructure that automates high-quality API documentation and SDK generation in multiple languages for businesses.
Fern has raised $9.5M across 2 funding rounds.
Key people at Fern.
Fern was founded in 2022 by Deep Singhvi (Founder) and Danny Sheridan (Founder).
Fern has raised $9.5M in total across 2 funding rounds.
Based in New York, New York, Fern is an API infrastructure technology company that automatically generates interactive API documentation and software development kits (SDKs) for businesses. The organization maintains additional global offices in Bangalore, Boston, and Tokyo to support its international operations. In January 2026, the approximately 30-employee company was acquired by Postman, providing the platform access to an expanded network of over 500,000 organizations, including 98 percent of the Fortune 500. The platform operates through both open-source and commercial offerings, automating SDK maintenance across multiple programming languages while tailoring documentation to specific corporate branding. Prior to the acquisition, the developer experience platform had successfully secured more than 200 enterprise customers, including recognizable global technology companies such as Square, Auth0, Adobe, and Twilio. Fern was founded in 2022 by Danny Sheridan and Deep Singhvi.
Key people at Fern.
Fern was founded in 2022 by Deep Singhvi (Founder) and Danny Sheridan (Founder).
Fern has raised $9.5M in total across 2 funding rounds.
Fern's investors include Day One Ventures, DST Global, Emergence Capital, Felicis Ventures, Flex Capital, Friends & Family Capital, Global Founders Capital, Greenoaks Capital, Matrix, Otherwise Fund, Spark Capital, Summit Partners.
Fern has raised $9.5M across 2 funding rounds. Most recently, it raised $9.0M Series A in April 2025.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Apr 1, 2025 | $9M Series A | — | DAY ONE Ventures, DST Global, Emergence Capital, Felicis Ventures, Flex Capital, Friends & Family Capital, Global Founders Capital, Greenoaks Capital, Matrix, Otherwise Fund, Spark Capital, Summit Partners, SV Angel, Theory Forge Ventures, Y Combinator, Azeem Azhar, BEN Tossell, Kulveer Taggar, Mathilde Collin, Paul Graham, Paul Stahura, Siqi Chen, Thijn Lamers | Announced |
| Apr 1, 2023 | $500K Seed | — | Andreessen Horowitz, DAY ONE Ventures, DST Global, Emergence Capital, Felicis Ventures, Flex Capital, Friends & Family Capital, Global Founders Capital, Greenoaks Capital, Matrix, NFX, Otherwise Fund, Preface Ventures, Sand Hill Angels, Spark Capital, Summit Partners, SV Angel, Theory Forge Ventures, Y Combinator, Adam Gross, Azeem Azhar, BEN Tossell, Charles Zedlewski, Kulveer Taggar, Mathilde Collin, Paul Graham, Paul Stahura, Robert Witoff, Siqi Chen, Spencer Kimball, Thijn Lamers | Announced |
Fern is a software company that instantly generates world-class SDKs and API documentation from API specifications, automating the traditionally tedious and resource-intensive process of building and maintaining these developer tools. Its platform serves engineering teams and developer-focused companies by producing idiomatic SDKs in multiple programming languages and visually appealing, branded API docs, significantly improving the developer experience and accelerating API adoption. Since its launch in 2023, Fern has gained traction with over 150 customers, including notable tech leaders like Square, Webflow, ElevenLabs, LaunchDarkly, and Intercom[1][3][5].
For an investment firm, Fern represents a cutting-edge solution in the API developer tools space, focusing on streamlining API integration and documentation—a critical bottleneck in software development. Its mission is to make API integrations seamless and accessible, anticipating the rise of AI-powered API calls and autonomous integrations. This positions Fern at the intersection of developer experience (DX) and emerging AI agent-driven automation, impacting the startup ecosystem by enabling faster, more reliable API-driven product development[1][5].
Fern was founded in 2023 by CEO Danny Sheridan and CTO Deep Singhvi, who met at the University of Michigan and previously built a successful Amazon e-commerce business together. Danny’s background includes business administration and experience at Amazon working with marketplace sellers, while Deep studied computer science and worked at Palantir on software for government clients. Their shared frustration with the time developers spend on API integration and documentation led them to create Fern, initially focusing on SDK generation and quickly expanding to automated API documentation and AI-powered developer assistance[1][4].
The company launched through Y Combinator in 2023 and rapidly attracted high-profile customers. Early traction was driven by the clear market need for a streamlined, automated solution that could replace costly, manual SDK and doc maintenance, which only large companies like Amazon could previously afford to solve at scale[2][4].
Fern rides the growing trend of API-first development and the increasing complexity of managing API integrations at scale. As software ecosystems become more interconnected, the demand for seamless, high-quality developer experiences intensifies. Fern’s timing is critical as AI agents are poised to become primary API consumers, requiring SDKs and documentation that support autonomous integration and dynamic adaptation.
Market forces favor Fern’s approach because maintaining SDKs and docs manually is costly and error-prone, and companies seek to accelerate time-to-market while improving developer satisfaction. By automating these processes and preparing for AI-driven API usage, Fern influences the broader ecosystem by setting new standards for API integration quality and developer experience[1][5].
Fern is well-positioned to lead the next wave of API developer tools, especially as AI agents increasingly interact with APIs autonomously. Its $9M Series A funding led by Bessemer Venture Partners underscores investor confidence in its vision and execution. Moving forward, Fern’s focus on AI-powered autonomous integrations and expanding its enterprise offerings will likely drive significant growth.
Trends shaping Fern’s journey include the rise of AI in software development, the proliferation of APIs across industries, and the increasing importance of developer experience as a competitive differentiator. Fern’s influence may evolve from a tool provider to a foundational platform enabling AI-driven API ecosystems, making API integrations feel "like magic" for both human developers and AI agents[1][5].
This trajectory ties back to Fern’s core mission: to make SDKs and API documentation accessible, automated, and delightful, fundamentally transforming how developers and AI agents interact with APIs.
