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Average Ratings 0 Ratings

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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

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

GitHub
Go
Java
Kotlin
Model Context Protocol (MCP)
Node.js
Python
Ruby
Sayari
Terraform
TypeScript

Integrations

GitHub
Go
Java
Kotlin
Model Context Protocol (MCP)
Node.js
Python
Ruby
Sayari
Terraform
TypeScript

Pricing Details

$250 per month
Free Trial
Free Version

Pricing Details

$250 per month
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

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
API Lifecycle Management
Access Control
Analytics
Dashboard
Developer Portal
Testing Management
Threat Protection
Traffic Control
Version Control

Software Documentation

Access Roles / User Permissions
Automatic Documentation Generation
Collaboration Tools
Docs Web Hosting
Feedback Capture
Markdown Support
Multiple Formats Support
Multiple Versions Support
Version Control
WYSIWIG Editor
Webhooks
reStructured Text Support

Alternatives

Alternatives

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