Fern · Pricing Plans

Fern Api Plans Pricing

Fern is open-core. The `fern` CLI and generators are open source (Apache-2.0) and free to run, and the hosted Docs and SDK product is sold on three tiers - Hobby, Team, and Enterprise - covering both API Docs and SDKs. The Hobby tier is free forever for individuals; the Team tier is a flat monthly fee (billed yearly); Enterprise is custom-priced. Plan differences are driven by team seats, monthly AI credits (for the Ask Fern / AI docs features), authentication and access-control options, and self-hosting. The hosted Ask Fern REST API is available on the Team and Enterprise plans.

Fern Api Plans Pricing is the machine-readable pricing-plan profile for Fern on the APIs.io network, conforming to the API Commons Plans specification.

It defines 4 plans, covering free, paid, and enterprise tiers, with named plans including Open Source CLI and Generators, Hobby, Team, Enterprise.

Tagged areas include SDK Generation, API Documentation, Developer Tools, Open Source, and Plans.

4 Plans API Commons Plans
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SDK GenerationAPI DocumentationDeveloper ToolsOpen SourcePlans

Plans

Open Source CLI and Generators free

The `fern` CLI and code generators are open source under Apache-2.0 and free to run locally or in CI. Convert OpenAPI/AsyncAPI/gRPC/Fern Definition into SDKs and preview docs without a paid plan.

CLI and Generator Usage (runs · month) free (open source, Apache-2.0) USD
Hobby free

Free-forever hosted tier for individuals. Includes guides, API references, changelogs, the API explorer, and the web editor with a custom domain.

Team Members (seats · month) $0 USD
AI Credits (credits · month) included USD
Team paid

Paid tier for small teams. Everything in Hobby plus more seats and AI credits, custom subpath, version and product switching, password-protected docs, PDF exports, and access to the hosted Ask Fern REST API.

Subscription (subscription · month) $150/month (billed yearly) USD
Team Members (seats · month) included USD
AI Credits (credits · month) included USD
Enterprise enterprise

Custom-priced tier for scaling teams and enterprises. Everything in Team plus visitor authentication (JWT/SSO), role-based access control, translated content, self-hosting, enterprise SSO, and a dedicated support channel.

Enterprise Agreement (contract · year) contact sales USD

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