Products

Fern

Uses AIMCP

Upgrade your developer and agent experience

buildwithfern.com Source★ 590Software Development / Developer Docs & Portals

AI Benchmark
Desktop
Mobile
Monthly visits
46.9K
Down10.4%MoMOct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
Unknown
Freemium model, plan pricing not identified yet
Creators
Danny Sheridan
No social account linked+1 more creators
Launched
2y ago
2024-10-08 · Est.

Traffic

Monthly visitsData through Oct 2026
Events22 changes

Marketing moves

Launches, search & content, referrals, promotions
X accounts@buildwithfern

  • Launched on Product HuntLaunch

    Instant Docs and SDKs for your API

    Sep 29, 2025 · 14mo agoLaunch page

  • Launched on Show HN (2 pts)Launch

    Generate SDKs with gRPC and REST — We built the world’s first generated, idiomatic gRPC and REST SDK. If you have public gRPC and REST endpoints, Fern is the SDK provider for you.

    Oct 8, 2024 · 2y agoLaunch page

Third-party reviews & case dossiers

Acquisition breakdowns, engineer reviews & open-source metrics
Console.dev
2024-09-05Source
What engineers like:
Parses OpenAPI or AsyncAPI formats to auto-generate SDKs (JS, Python, Go, .NET, Java, Ruby) and docs. Use Fern’s own definition format for more control (can be exported to OpenAPI). Can auto-publish to npm, PyPI, NuGet and Maven Central. Generates a changelog. Integrates with pull request reviews.
Trade-offs & limitations:
Support for PHP, Swift, Rust & Terraform not available yet.
Best suited for:
Developers using OpenAPI or AsyncAPI formats should consider this tool for auto-generating SDKs and documentation

Open Source & Agent Ecosystem

GitHub · MCP / Skill
fern-api/fern
Last commit 2026-11-07
GitHub Stars
★ 590
Forks
99
License
See repository
Primary language
JavaScript
Browse peer open-source projects →

Agent, MCP & Developer Integration

MCP ServerCLI / SDK
Integration docs
Ecosystem & integrations:
Postman
Exposed tool capabilities:
SDK GenerationAPI DocumentationManage your documentationAI searchAI writing agentAI translations
Browse all MCP Server products →

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Direct49%
  • Organic Search26%
  • Referrals11%
  • Social8%
  • Other6%

Countries

  • United States33%
  • India9%
  • Brazil8%
  • Vietnam8%
  • Israel5%

Search

Domain authority —Domain registered 2022-04-22

KeywordMonthly volume
fern165.5K
fern docs1,020
fern ai credits370
fern agent240
fern pythonm120

Traffic data: Vaneform

Pricing

Free
Free
10 team members · 1,000 pages · 250 AI credits per month · 2,000 page generations per month
Enterprise
Unknown

Trial: None · Free tier included · Enterprise custom tier · Observed 2026-11-10 · Pricing page

Pages & changes

Tracked since 2025-09-29

Key pages

Weekly snapshots

Changes

  1. Nov 1 · 13d ago

    Homepage headline (H1) changed to “Upgrade your developer and agent experience”Positioning

    Instant Docs and SDKs for your API→Upgrade your developer and agent experience

    At the time: 46.9K visits/mo21 concurrent moves
  2. Nov 1 · 13d ago

    Removed technology: Amazon S3Features

    Amazon S3→—

    At the time: 46.9K visits/mo21 concurrent moves
  3. Nov 1 · 13d ago

    Adopted technology: Base UIFeatures

    —→Base UI

    At the time: 46.9K visits/mo21 concurrent moves
  4. Nov 1 · 13d ago

    Removed technology: Cart FunctionalityFeatures

    Cart Functionality→—

    At the time: 46.9K visits/mo21 concurrent moves
  5. Nov 1 · 13d ago

    Adopted technology: Google AnalyticsFeatures

    —→Google Analytics

    At the time: 46.9K visits/mo21 concurrent moves
  6. Nov 1 · 13d ago

    Adopted technology: Microsoft AdvertisingFeatures

    —→Microsoft Advertising

    At the time: 46.9K visits/mo21 concurrent moves

Questions & evidence

How much does Fern cost?
Free: Free; Enterprise: Unknown. Observed 2026-11-10. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does Fern get?
Vaneform estimates 46.9K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Fern and what platforms does it support?
Fern is catalogued under Developer Docs & Portals: Upgrade your developer and agent experience. Supported platforms: MCP Server, CLI / SDK.
Is Fern open source?
Fern has a public repository (https://github.com/fern-api/fern) with its source repository published, recording 590 GitHub stars.Source

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