OpenAPI 3 Client Extension

About

A powerful Chrome extension for testing OpenAPI 3.x APIs with advanced features including schema-driven request building, jq filtering, and
  automatic CORS bypass.

  CORE FEATURES

  OpenAPI 3.x Support
  - Parse and validate JSON/YAML specifications
  - Advanced reference resolution with circular reference protection
  - Real-time specification validation

  Professional Request Builder
  - Dual-mode interface: Form-based and raw JSON editing
  - Schema-driven form generation from OpenAPI specs
  - Support for all data types and nested structures
  - Bidirectional synchronization between modes

  Advanced Response Processing
  - Built-in jq filtering for JSON querying
  - Multiple view modes: Tree, Raw JSON, Filtered results
  - Real-time query processing
  - One-click copying of results

  Smart Request Management
  - Auto-save/load request configurations per endpoint
  - Comprehensive history with search and replay
  - Environment management (dev, staging, production)
  - Custom URL and query parameter support

  KEY BENEFITS

  Bypass CORS Restrictions
  Unlike web-based API clients, this extension uses Chrome permissions to bypass CORS limitations, allowing you to test any API without server
  configuration changes.

  Browser Integration
  - No separate application required
  - Access from any tab
  - Automatic cookie forwarding
  - Seamless workflow integration

  Enhanced Productivity
  - Auto-save configurations for quick re-testing
  - Request history with search capabilities
  - Environment switching without reconfiguration
  - Form-based building reduces errors

  IDEAL FOR

  API Developers: Test endpoints during development and validate specifications
  QA Engineers: Comprehensive testing workflows and regression testing
  Frontend Developers: Backend API exploration and authentication testing
  DevOps Teams: API monitoring and environment validation

OPEN SOURCE & CONTRIBUTIONS
GitHub Repository: https://github.com/marimelon/oapi3-client-ext

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