Fern vs Stoplight: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
Stoplight
Stoplight is a collaborative API design platform that helps teams create, document, and manage high-quality APIs using a design-first approach.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
Stoplight
Stoplight is a collaborative API design platform that helps teams create, document, and manage high-quality APIs using a design-first approach.
Fern
Automatic SDK generation in 8+ programming languages
Stripe-style API documentation websites
Direct publishing to package registries
OpenAPI and AsyncAPI support
Interactive API playground with live testing
Custom branding and domain support
Built-in OAuth 2.0 and authentication
Automatic pagination and retry logic
WebSocket and SSE support
Version control with Git
AI-powered search assistant
Open source on GitHub
Stoplight
Visual OpenAPI editor with no-code interface
Automatic interactive documentation generation
Instant mock servers with Prism
API style guides and linting with Spectral
Git repository integration (GitHub, GitLab, Bitbucket, Azure DevOps)
Team collaboration with comments and reviews
Reusable components and schemas
Multi-branch support
Custom domains and branding
Component libraries for governance
LDAP and SAML SSO support
Fern
Fern offers separate pricing for SDKs and documentation to fit different team needs.
For SDK generation, there are three tiers available:
Basic Plan ($250/month per SDK): Supports up to 50 endpoints with REST API support, automated publishing, and schema validation. Billed annually.
Pro Plan ($600/month per SDK): Includes up to 150 endpoints, WebSockets, webhooks, dedicated Slack support, and advanced features like pagination and OAuth. Billed annually.
Enterprise Plan (Custom pricing): Offers unlimited endpoints, SDK migration services, enterprise support with SLAs, GitHub issue monitoring, and custom code maintenance.
For documentation, pricing includes:
Basic Plan ($400/month): Stripe-like API reference, API playground, custom domain, and built-in components. Billed annually.
Pro Plan ($1,000/month): Everything in Basic plus custom React components, authenticated docs, role-based access control, and AI search capabilities. Billed annually.
Enterprise Plan (Custom pricing): Includes white-glove content migration, custom integrations, SSO authentication, design services, and enterprise support.
Stoplight
Stoplight offers plans designed for different team sizes and needs:
The Basic Plan starts at $52 per month and includes the first 3 users for free, with additional users at $13 each. This plan provides the OpenAPI visual designer, interactive documentation, and instant mock servers. It includes a 14-day free trial.
The Startup Plan costs $137 monthly with 8 free users included. Additional users cost $13 each. This adds private projects, multi-branch support, custom domains, theming options, and Google Analytics integration.
The Pro Team Plan is $423 per month with 15 users included at $25 per additional user. It supports up to 20 teams and includes shared style guides, workspace groups, self-hosted Git providers, activity logs, LDAP and SAML SSO, and component libraries.
For larger organizations, Enterprise Plans offer custom pricing with unlimited projects and teams, flexible payment terms, invoicing, and priority support.
