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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

Description

Create Stripe-like SDKs and documentation tailored for your API with ease. Provide type-safe SDKs in widely used programming languages, allowing Fern to handle the complex task of generating and distributing client libraries, enabling your team to concentrate on API development. Simply import your API definition, whether in OpenAPI format or Fern’s more straightforward alternative. Choose from a variety of code generators, including TypeScript, Python, Java, Go, Ruby, C#, and Swift, to suit your needs. Fern takes care of semantic versioning and publishes packages to various registries like npm, pypi, and maven, ensuring seamless integration. Plus, enjoy visually appealing API documentation that aligns with your brand identity for a cohesive user experience. This way, you can enhance both the functionality and presentation of your API offerings.

Description

Stainless is an API developer experience platform that enables companies to automatically generate robust SDKs, synchronized API documentation, and Model Context Protocol (MCP) servers directly from OpenAPI specifications. Built for modern API-first businesses and AI-driven ecosystems, Stainless helps organizations deliver best-in-class developer tooling and agent-ready infrastructure without manually maintaining SDKs or documentation across multiple programming languages. The platform supports generation of idiomatic SDKs for TypeScript, Python, Go, Java, Ruby, C#, PHP, and other major languages, ensuring developers can integrate APIs using language-native patterns and tooling. Stainless continuously derives SDKs and documentation from a centralized OpenAPI specification, allowing documentation and client libraries to remain automatically aligned with evolving APIs and reducing maintenance complexity for engineering teams. In addition to developer tooling, the platform supports state-of-the-art MCP server generation, enabling AI agents and AI-powered systems to interact with APIs more effectively through standardized interfaces. Stainless is used by API-focused technology companies and infrastructure providers seeking to improve onboarding, reduce integration friction, accelerate adoption, and provide consistent developer experiences at scale. By automating SDK generation, documentation synchronization, and MCP infrastructure from a single API specification, Stainless helps engineering organizations deliver reliable, scalable, and agent-friendly API ecosystems more efficiently.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

GitHub No 
Go No 
Java No 
Kotlin No 
Model Context Protocol (MCP) No 
Node.js No 
Python No 
Ruby No 
Sayari Yes 
Terraform No 
TypeScript No 

Integrations

GitHub Yes 
Go Yes 
Java Yes 
Kotlin Yes 
Model Context Protocol (MCP) Yes 
Node.js Yes 
Python Yes 
Ruby Yes 
Sayari No 
Terraform Yes 
TypeScript Yes 

Pricing Details

$250 per month
Free Trial No 
Free Version No 

Pricing Details

$250 per month
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) Yes 
In Person No 

Vendor Details

Company Name

Fern

Founded

2022

Country

United States

Website

buildwithfern.com

Vendor Details

Company Name

Anthropic

Country

United States

Website

www.stainless.com

Product Features

API Management

API Design No 
API Lifecycle Management No 
Access Control No 
Analytics No 
Dashboard No 
Developer Portal No 
Testing Management No 
Threat Protection No 
Traffic Control No 
Version Control No 

Software Documentation

Access Roles / User Permissions No 
Automatic Documentation Generation No 
Collaboration Tools No 
Docs Web Hosting No 
Feedback Capture No 
Markdown Support No 
Multiple Formats Support No 
Multiple Versions Support No 
Version Control No 
WYSIWIG Editor No 
Webhooks No 
reStructured Text Support No 

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