Fundraising Fox
/Companies
Sign in

Fern

AcquiredYC W23

New York City, US · Founded 2022 · 30 employees · 17 known investors

Find your way into Fern

Sign up to see every warm intro you have to Fern

  • Paths you didn't know you had: your email and LinkedIn already hold routes to the Fern team. We find them for you
  • 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
  • Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone

Days of research, done the moment you sign in, with every route ranked by how warm it is.

Sign up with GoogleAlready have an account? Log in

Fern provides documentation, SDK generation, and CLI tools for APIs, built with AI features including integrated chat, MCP server support, and agent-first capabilities. The platform serves developers and AI agents consuming APIs across REST, WebSockets, and GraphQL protocols.

Also known as Birch Solutions, Inc. · Fern, fern

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSB2BOpen SourceAPIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W23)

Fern was founded in 2022 by Deep Singhvi and Danny Sheridan.

DSDeep Singhvi
Deep SinghviCo-Founder2021–2026Deep Singhvi is a software engineer at Fern. Previously, he worked as a software engineer at Palantir on data integration projects serving the Department of Defense and US Army.
DS
Danny SheridanFounder2022–2026
AYAmit Yadav
Amit YadavFounder
DS
Danny Sheridan Deep SinghviFounder
RXRobert Xu
Robert XuFounder
SD
Suhas DeshpandeFounder
ZK
Zach KovalFounder
AM
Alex McKinneyEngineer
RT
Ryan TishGTM
CD
Catherine DeskurSales Engineer
JM
Juno MenRecruiter
ZK
Zach KirschFounderformer

Investors · 17

Eight Capitallisted by Eight CapitalNorwalk

How we know: Y Combinator's founder network · eightcapital.com · Not right? Tell us

NKECHI IREGBULEMlisted by NKECHI IREGBULEMSan Francisco

How we know: NKECHI IREGBULEM's portfolio page · Not right? Tell us

Soma Capitallisted by Soma CapitalSacramento · $100K – $300K

How we know: Y Combinator's founder network · somacap.com · open dataset · 5k.vc investor directory · Not right? Tell us

V1 VClisted by V1 VCBoulder · $100K – $300K

How we know: funding news · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · funding news · siliconangle.com · open dataset · 5k.vc investor directory · Not right? Tell us

Avlok CapitalreportedLynnwood

How we know: Y Combinator's founder network · Not right? Tell us

CapitalXreportedLynnwood · $250Kvia Cindy Bi · inferred

How we know: the VCSheet dataset · Not right? Tell us

ChinaRock Capital ManagementreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Crosstimbers Capital GroupreportedHouston

How we know: Y Combinator's founder network · Not right? Tell us

Flex Capital PartnersreportedSan Francisco · $500K – $2M

How we know: Y Combinator's founder network · Not right? Tell us

Kleiner PerkinsreportedMenlo Park · $500K – $15M

How we know: Y Combinator's founder network · Not right? Tell us

Orange CollectivereportedDanville

How we know: Y Combinator's founder network · Not right? Tell us

Peterson Venture PartnersreportedSalt Lake City · $5M – $25M

How we know: Y Combinator's founder network · Not right? Tell us

PioneerreportedToronto, Ontario

How we know: Y Combinator's founder network · Not right? Tell us

Sequoia CapitalreportedMenlo Park · $100K – $50M

How we know: Y Combinator's founder network · Not right? Tell us

Twenty Two VenturesreportedPalo Alto · $50K – $250K

How we know: Y Combinator's founder network · Not right? Tell us

Funding

SEC filings, press & company announcements

$9M disclosed across 1 round · 2025

Source: company announcements and press reports — follow each round's link for the claim.

The YC application· Winter 2023 batch

▶ Application video — watch on YC ↗

Images

Fern photoFern photo

Founder mafia

3 people who came through Fern went on to found or lead other companies.

Sandeep DineshStaff Software EngineerFounded MercoaAmit YadavFounderFounded FernRobert XuFounderFounded Fern

Related companies · 10

PostmanPostman is an API platform that helps developers build, test, and manage APIs throughout their lifecycle. It serves organizations across industries, including 98% of the Fortune 500, and provides tooling for API development, quality assurance, and organizational governance.
TesseralTesseral is an open source platform that provides identity and access management for business software, with features including single sign-on, user provisioning, role-based access control, and audit logging. It serves organizations managing access for employees, customers, services, and AI agents.
RequestlyRequestly is a Git-native API client for teams to design, build, and test APIs in a single local-first application. It serves software developers at Fortune 500 companies and offers features like REST and GraphQL support, environment management, and collaboration tools with enterprise-grade security.
StopLightStoplight is a collaborative platform for API design that helps teams build and manage APIs at scale. The platform serves developers and engineering teams building scalable API programs.
NangoNango provides an integration platform that enables software products to connect with 800+ APIs through code-first integrations with built-in authentication and agent support. The platform serves developers and engineering teams building integrations at scale.
WarrantWarrant provides an authorization service that developers use to implement access control policies in their applications, offloading permission logic to a dedicated platform so engineering teams can concentrate on product development.
Gravitee IoGravitee provides a platform that unifies AI Agent management with API management, event management, and identity and access management, letting enterprises secure, govern, and productize agents, APIs, and event streams through a single control plane. Founded as an open source company, it offers an Apache 2.0 Community Edition that runs on any cloud or on-premises.
RecipeUIRecipeUI is an open source tool for testing and debugging APIs that lets non-backend engineers diagnose API failures independently.
WallarmWallarm provides an AI security and API security platform that discovers AI workloads, monitors runtime behavior, enforces policy inline, and generates continuous compliance evidence such as EU AI Act mapping. It is built for enterprises running AI on AWS, using kernel-level instrumentation to observe and protect AI agents and the APIs they call.
MoesifMoesif provides an API analytics and monetization platform for teams building API and AI products, offering usage-based billing on API calls and LLM token counts, payload debugging, quota enforcement, and usage monitoring. It is aimed at product and engineering teams that want to understand, govern, and monetize their API and AI usage.

Companies working in the same space as Fern.

Legal entities · 1

corporate structure
Birch Solutions, Inc.

In the news

Fern raises a Series A to meet the growing demand for SDKs and API Docs | Fernbuildwithfern.com · Apr 2025Fern Docs: Developer-friendly API Docsycombinator.com · Sep 2024Fern - SDKs for your API ⚡ycombinator.com · Feb 2023

Frequently asked questions

What does Fern do?
Fern provides documentation, SDK generation, and CLI tools for APIs, built with AI features including integrated chat, MCP server support, and agent-first capabilities. The platform serves developers and AI agents consuming APIs across REST, WebSockets, and GraphQL protocols.
Who founded Fern?
Fern was founded by Deep Singhvi, Danny Sheridan in 2022.
Who are Fern's investors?
Fern's investors include Bessemer Venture Partners, Eight Capital, NKECHI IREGBULEM, Soma Capital, V1 VC, Y Combinator, Avlok Capital, CapitalX and 9 more.
How much funding has Fern raised?
Fern has disclosed $9M raised across 1 round.
Where is Fern headquartered?
Fern is headquartered in New York City, US.