Flux – Request Interceptor & Mocker

Tracking since Apr 2, 2026.

Changelog

• Apr 17, 2026
  description

  Flux – Request Interceptor & Mocker is a powerful DevTools extension for developers and testers.
  
  What it lets you do:
  
  Intercept HTTP and GraphQL requests in real time
  Analyze headers, payloads, and detailed responses
  Simulate responses (mocking) to test different scenarios
  Modify requests before sending them
  Automatically generate Swagger/OpenAPI documentation
  Log the complete history of network calls
  Benefits:
  ✓ Debug faster without modifying the code
  ✓ Generate API documentation automatically
  ✓ Easily test error cases (API down, timeout, etc.)
  ✓ Speed up frontend development by mocking the backend
  ✓ Analyze client-server communication in detail
  ✓ Optional permissions: works wherever you need it
  
  Perfect for development and QA teams who want full control over network requests and to document their APIs.

  Flux – Request Interceptor & Mocker is a powerful DevTools extension for developers and testers.
  
  What it lets you do:
  
  Intercept HTTP and GraphQL requests in real time
  Analyze headers, payloads, and detailed responses
  Simulate responses (mocking) to test different scenarios
  Modify requests before sending them
  Automatically generate Swagger/OpenAPI documentation
  Log the complete history of network calls
  Benefits:
  ✓ Debug faster without modifying the code
  ✓ Generate API documentation automatically
  ✓ Easily test error cases (API down, timeout, etc.)
  ✓ Speed up frontend development by mocking the backend
  ✓ Analyze client-server communication in detail
  
  Perfect for development and QA teams who want full control over network requests and to document their APIs.

Permissions & access

Permissions

storagetabs

Host access

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Screenshots