API Hub vs Fern: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
API Hub
API Hub is a complete platform for designing, testing, documenting, and managing APIs with team collaboration and quality control.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
API Hub
API Hub is a complete platform for designing, testing, documenting, and managing APIs with team collaboration and quality control.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
API Hub
OpenAPI and AsyncAPI specification support
AI-assisted API design and generation
Visual form editor and code editor
Automatic style validation and linting
Mock server generation
Contract testing with AI automation
Sequential and parallel test execution
Branded documentation portals
Team collaboration with comments
Version control integration
Code generation for multiple languages
CI/CD pipeline integration
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
API Hub
API Hub offers flexible pricing plans to match different team sizes and needs.
The Individual plan starts at €27.90 per user per month. It includes code generation, editor access, form-based editing, 5 domains for component libraries, 1 public product portal, 10 contracts, 10 AI credits, and 50 test executions. This plan works well for solo developers or small projects.
The Team plan costs €39.06 per user per month. It adds 10 domains, 2 public products, 20 contracts, system accounts, webhooks, and maintains 50 test executions. Perfect for small teams starting to scale their API work.
The Enterprise plan is priced at €65.84 per user per month. It provides 5 public products, 50 contracts, role-based access control, 50 webhooks, and 100 test executions. Designed for growing companies with more complex needs.
The Enterprise Plus plan requires custom pricing and includes unlimited contracts, products, webhooks, test executions, and advanced features like custom API templates.
Add-ons are also available: Portal Pro (€26.78/month), Contract Testing Pro (€26.16/month), Enterprise SSO (€5.58/month), and Test Pro (€33.50/month).
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.