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Automate SDK maintenance so your engineers
can spend time on higher-value projects
$250/mo
per SDK, billed annually
Starter
$600/mo
per SDK, billed annually
Business
Custom
tailored to your needs
Enterprise
Protocols
REST API
Up to 50 endpoints
Up to 150 endpoints
Unlimited
Webhook Verification
WebSockets
Server Sent Events
gRPC
Authentication
Basic, Bearer, API Key
OAuth 2.0
HMAC, Digest
Augment with Custom Code
Custom Logic
Custom Dependencies
Custom Code Maintenance
SDK Features
Strongly typed
Idiomatic Method Names
Schema Validation
Multipart Form Data
Forward Compatibility
Auto-Pagination
Retries with Backoff
Idempotency Headers
Integration Tests
Automation
Semantic Versioning
Registry Publishing
Merge Multiple APIs
Up to 5
Unlimited
Filter with Audiences
Code Snippets
In the SDK
In GitHub
In your Fern Docs
In your Third-Party Docs
Via our API
Dynamically via our API
Onboarding and Support
Support Channels
OpenAPI Audit
SDK Migration Services
GitHub Issue Triage
Service Level Agreement
SOC 2 Report
Integrations
GitHub & GitLab
NPM
PyPI
Maven
Nuget
RubyGems
Packagist
$250/mo
per SDK, billed anually
Starter
Get started
$600/mo
per SDK, billed anually
Business
Talk to us
Custom
Enterprise
Talk to us
Protocols
REST API
Up to 50 endpoints
Up to 150 endpoints
Unlimited
Webhook Verification
WebSockets
Server Sent Events
gRPC
Authentication
Basic, Bearer, API Key
OAuth 2.0
HMAC, Digest
Augment with Custom Code
Custom Logic
Custom Dependencies
Custom Code Maintenance
Features
Strongly typed
Idiomatic Method Names
Schema Validation
Multipart Form Data
Forward Compatibility
Auto-Pagination
Retries with Backoff
Idempotency Headers
Integration Tests
Automation
Semantic Versioning
Registry Publishing
Merge Multiple APIs
Up to 5
Unlimited
Filter with Audiences
Code Snippets
In the SDK
In GitHub
In your Fern Docs
Via our API
Dynamically via our API
Onboarding and Support
Dedicated Slack Channel
OpenAPI Audit
SDK Migration Services
GitHub Issue Triage
Service Level Agreement
SOC 2 Report
SDK Migration Services
Integrations
GitHub
NPM
PyPI
Maven
Nuget
RubyGems
SwiftPM
$0
No credit card required
Free
Get started
$150/mo
billed annually
Starter
Get started
$400/mo
billed annually
Business
Talk to us
Custom
Enterprise
Talk to us
Hosting
SEO Optimized
Custom Domain
Custom Subpath
Writing Content
Docs as Code
Markdown Guides
Built in Component Library
Changelog
Multiple Versions
Up to 5
Unlimited
Custom Components
API Reference
REST (OpenAPI)
Webhooks
WebSockets (AsyncAPI)
Server Sent Events
API Playground (Try it)
Auto-populate API Key
Feedback & Search
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Migration Services
Priority Feature Requests
Service Level Agreement
SOC 2 Report
Integrations
GitHub
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PostHog
Segment
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Slack
Postman
HubSpot
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Custom Integrations