Scalar is an open-source API platform built around the OpenAPI standard. It provides API documentation (API References), an offline-first API client, a centralized API registry for managing OpenAPI documents, JSON schemas and Spectral rules, and automated SDK generation for TypeScript, Python, Go, PHP, Java, and Ruby. Used by teams at SmartBear, Microsoft ASP.NET, and 30+ framework ecosystems including Express, FastAPI, NestJS, and Spring Boot. The platform has 14.9k GitHub stars and is MIT licensed. Scalar is backed by a strong open-source community and positions itself as the modern, open alternative to Swagger UI and Postman.
APIs.json: https://raw.githubusercontent.com/api-evangelist/scalar/refs/heads/main/apis.yml
- Type: Index
- Position: Consumer
- Access: 3rd-Party
- API Client
- API Documentation
- API References
- Code Generation
- Developer Tools
- OpenAPI
- Registry
- SDKs
- Swagger
- Created: 2025-01-08
- Modified: 2026-05-02
Scalar API References renders modern, interactive API documentation from OpenAPI and Swagger specifications. Features include multiple themes, custom styling, dark mode, mobile responsiveness, built-in search, and an interactive request panel for testing APIs directly in the docs. Supports OpenAPI 3.0 and 3.1, $ref resolution, allOf/oneOf/anyOf, and authentication schemes. Framework integrations include React, Vue, FastAPI, ASP.NET Core, Spring Boot, NestJS, Express, and 30+ others.
- Documentation
- Interactive
- OpenAPI
- References
- Swagger
- Getting Started
- Documentation
- Git Hub
- N P M
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Scalar API Client is a fully open-source, offline-first REST API client built on the OpenAPI standard. Supports collections, environments, pre/post-response scripting, test results, and collection runners. Available for Windows, macOS, and Linux as a desktop application and as a browser-based version at client.scalar.com. Imports OpenAPI files to auto-generate request collections with authentication pre-configured.
- API Client
- Collections
- OpenAPI
- REST
- Testing
- Getting Started
- Application
- Download
- Git Hub
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Scalar Docs enables teams to create and publish developer documentation that stays in sync with their API and code. Supports writing with a WYSIWYG editor, pulling Markdown and MDX files from repositories, and generating API references from OpenAPI documents with Git Sync and CI/CD integration. Custom domains, team collaboration, and versioning are available on paid plans.
- Developer Portal
- Documentation
- Git Sync
- Markdown
- MDX
- Getting Started
- Portal
- Documentation
- Git Hub Actions
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Scalar Registry provides centralized management and versioning of OpenAPI Documents, JSON Schemas, and Spectral Rules with deep Git integration. Serves as the single source of truth for API definitions across teams. Supports both private and public registries with CI/CD workflows via CLI and GitHub Actions. Publish via the scalar CLI: scalar registry publish.
- Git Integration
- Governance
- JSON Schema
- OpenAPI
- Registry
- Spectral
- Versioning
- Getting Started
- Documentation
- C L I
- Git Hub Actions
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Scalar SDKs generates type-safe client libraries from OpenAPI specifications. Supported languages include TypeScript, Python, Golang, PHP, Java, and Ruby. Features include automated GitHub workflows, code samples, full OpenAPI auth support, file streaming, and webhook support. SDK generation is $100 per month per language on paid plans.
- Code Generation
- Go
- Java
- PHP
- Python
- Ruby
- SDKs
- TypeScript
- Getting Started
- Documentation
- Pricing
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
The Scalar CLI is a command-line interface for managing OpenAPI files, generating documentation, running mock servers, validating specs, and publishing to the Scalar Registry. Enables CI/CD integration and automation of the API documentation workflow.
- CLI
- Developer Tools
- Mock Server
- OpenAPI
- Validation
- Getting Started
- Documentation
- N P M
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Website
- Documentation
- Pricing
- Git Hub
- Discord
- Blog
- Changelog
- Support
- Dashboard
- Spectral Rules
- JSON Schema — JSON Schema
- JSON Structure
- J S O N L D Context
- Vocabulary
- Examples
- Integrations
- L L Ms Txt
FN: Kin Lane Email: kin@apievangelist.com URL: https://apievangelist.com