Fern vs Speakeasy: Features, Pricing and User Reviews 2026
Speakeasy
Generate SDKs, MCP Servers, and API Docs from OpenAPI
Speakeasy
Generate SDKs, MCP Servers, and API Docs from OpenAPI
What are Fern and Speakeasy?
Fern is a platform that automatically generates SDKs and API documentation from your API definition. You provide your OpenAPI, AsyncAPI, or gRPC specification, and Fern creates ready-to-use client libraries in languages like TypeScript, Python, Go, Java, Ruby, C#, PHP, and Swift.
The platform also builds documentation websites that look professional and match your brand identity. These sites include interactive API references, code examples, and a playground where developers can test your API without leaving the documentation.
Fern is open source and available on GitHub. It integrates with your existing workflow by publishing SDKs directly to package registries like npm and PyPI. The tool is designed for companies that want to provide a great developer experience without dedicating engineering resources to manual SDK maintenance.
Speakeasy is a complete API toolchain that transforms your OpenAPI specification into ready-to-use developer tools. It creates native SDKs that follow best practices for each programming language, making them feel handwritten rather than machine-generated.
The platform includes three main products: SDK Generation for creating client libraries, Gram for building and hosting MCP servers that connect AI applications to your APIs, and interactive documentation that lets users test endpoints directly. Everything stays synchronized with your API changes through automated workflows.
Speakeasy goes beyond basic code generation by adding features like retry logic, error handling, pagination support, and OAuth integration. The generated code includes full type safety, detailed documentation, and works smoothly with popular development tools. Whether you are building internal tools or public APIs, Speakeasy helps ensure a consistent and professional developer experience.
Features of Fern and Speakeasy
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
Generate SDKs in 9+ programming languages from OpenAPI specs
Build and host MCP servers for AI integration
Automatic publishing to npm, PyPI, Maven, and other package managers
Interactive API documentation with live testing
OAuth 2.0, webhooks, and SSE support
Pagination, retries, and error handling built-in
GitHub Actions integration for CI/CD
Terraform provider generation
Custom code injection and overlays
Type-safe, idiomatic code generation
Use Cases of Fern and Speakeasy
Pricing of Fern and Speakeasy
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.
Speakeasy offers flexible pricing across three product lines to match different needs.
SDK Generation: The Free plan includes SDK generation for up to 50 operations per target with community support. The Scale-up plan costs $250 per month per target and adds pagination, retries, React Query, and custom code. The Business plan is $600 per month per target with OAuth support, webhooks, SSE, and 250 operations per target. Enterprise pricing is customized based on requirements and includes concierge onboarding, SLAs, SSO, and audit logs. Startups get 50% off Scale-up for one year, and open source projects receive free Scale-up plans.
Gram (MCP Hosting): Free plan includes 1 MCP server and 1,000 tool calls monthly. Pro plan is $29 per month for 3 servers and 5,000 tool calls with custom domains. Enterprise offers tailored pricing with OAuth proxy and dedicated support.
Documentation: Enterprise-only with tailored pricing, including migration services and custom branding.
FAQs: Fern vs Speakeasy
Reviews: Fern vs Speakeasy
Based on 0 reviews
Based on 0 reviews
Compare Fern With Other Tools
Mintlify
AI-Powered Documentation Platform for Developers
Redocly
Beautiful API Documentation and Developer Portals
Apidog
Stoplight
Visual API Design and Documentation
API Hub
Complete Platform for API Design, Testing, and Documentation
Readme
Interactive API Documentation & Developer Hubs
Theneo
AI-Powered API Documentation Generator for Beautiful Developer Docs
GitBook
Create Beautiful Documentation with AI-Powered Features
Document360
AI-Powered Knowledge Base for Teams
Compare Speakeasy With Other Tools
Mintlify
AI-Powered Documentation Platform for Developers
Redocly
Beautiful API Documentation and Developer Portals
Apidog
Readme
Interactive API Documentation & Developer Hubs
Stoplight
Visual API Design and Documentation
API Hub
Complete Platform for API Design, Testing, and Documentation
Theneo
AI-Powered API Documentation Generator for Beautiful Developer Docs
GitBook
Create Beautiful Documentation with AI-Powered Features
Document360
AI-Powered Knowledge Base for Teams
