Apidog vs Fern: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Apidog
Apidog is an all-in-one API development platform that helps teams design, test, document, and manage APIs faster together.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
Apidog
Apidog is an all-in-one API development platform that helps teams design, test, document, and manage APIs faster together.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
Apidog
Complete API design with visual editor and JSON Schema
Automatic mock server generation with smart data
Built-in testing with visual assertions
Real-time documentation that stays current
Team collaboration with version control
Support for REST, GraphQL, WebSocket, SOAP
Import from Postman and Swagger
Code generation in 20+ languages
CI/CD integration for automation
Free and paid plans available
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
Apidog
Apidog offers flexible pricing to match different team sizes and needs. The Free Plan gives you essential features to get started, including basic API design, testing, and documentation with some limits on projects and team members.
The Basic Plan costs $12 per user per month when billed yearly and includes more projects, better import options, and larger storage for test reports and images.
For professional teams, the Professional Plan ranges from $18 to $24 per user monthly, adding unlimited projects, faster scheduled imports every 10 minutes, and the ability to hide Apidog branding from published documentation.
The Enterprise Plan at $27 per user per month offers the highest level of features with even faster imports every 5 minutes, dedicated support, and advanced team management tools.
All paid plans include a free trial period to test before committing.
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.