Scalar
Create beautiful, syncable API docs, SDKs, and MCP servers from OpenAPI. Keep interfaces updated as your API evolves with automated generation and two-way Git sync.
Scalar is a modern platform for building, documenting, and managing APIs with full developer experience in mind. It enables teams to generate beautiful, interactive API documentation, type-safe SDKs, and secure MCP servers directly from OpenAPI specifications. Scalar keeps all interfaces synchronized as APIs evolve, reducing manual maintenance and ensuring consistency.
Key Features
- OpenAPI & AsyncAPI Support: Generate documentation and SDKs from industry-standard API specifications.
- Automated SDK Generation: Create type-safe client libraries in multiple languages (TypeScript, Python, Java, Go, Rust, etc.) with a single commit.
- Interactive API Docs: Build beautiful, customizable documentation with Markdown, MDX, and embedded API references.
- Two-Way Git Sync: Keep docs and code in perfect sync with automatic updates from your repository.
- MCP Server Integration: Deploy secure Model Context Protocol servers for AI agent interactions.
- Private & Public Portals: Control access with customizable visibility for internal teams or public audiences.
- Custom Branding: Tailor HTML/CSS/JS to match your brand identity.
- AI & MCP Chat: Enable AI-powered interactions with your API documentation.
- Registry & CLI Tools: Manage APIs, SDKs, and documentation through a centralized registry and command-line interface.
Tech / Self-Hosting
Scalar is primarily a cloud-based platform with a free tier available. The core components are open-source, allowing for self-hosting of documentation and registry services. The platform emphasizes open standards (OpenAPI, AsyncAPI) and provides tools for seamless CI/CD integration. For enterprise needs, Scalar offers managed services with advanced features and support.