Insomnia MCP Client

Overview

Insomnia v12 GA introduces MCP client support, AI-powered capabilities, and seamless workflows for testing any endpoint. Turn APIs into MCP servers in Kong Konnect, then validate the transformation in Insomnia by testing tools and verifying responses before agents use them.

Features

MCP Client Support

• MCP Server Testing: Test, debug, and design any MCP server endpoint
• Tool Validation: Verify MCP tool responses and behavior
• Response Inspection: Examine MCP server outputs in detail
• Integration Testing: Validate MCP transformations end-to-end

AI-Powered Features

• AI-Powered Commits: Intelligent commit messages and change tracking
• Autogenerated Mock Servers: Create mock APIs using natural language
• Smart Suggestions: AI-assisted request building and testing

Workflow Options

• Local Development: Work offline with local collections
• Git Integration: Version control for API definitions
• Cloud Sync: Collaborate with team members in the cloud

Insomnia Capabilities

API Testing

• REST, GraphQL, gRPC, and WebSocket support
• Environment variables and templating
• Request chaining and scripting
• Response validation and assertions

Design & Debugging

• OpenAPI/Swagger support
• Visual request builder
• Detailed response debugging
• Certificate and proxy configuration

Performance

• Fast, lightweight interface
• Minimal resource usage
• Quick startup and response times

Use Cases

MCP Server Development

• Test MCP server implementations locally
• Validate tool definitions and responses
• Debug MCP protocol interactions
• Verify server behavior before deployment

API Development

• Design and test REST APIs
• Build GraphQL queries and mutations
• Test WebSocket connections
• Create mock servers for frontend development

Team Collaboration

• Share API collections with team members
• Version control API definitions with Git
• Sync changes across development environments

Integration

Works with Kong Konnect for MCP server creation and validation. Supports local, git-based, and cloud workflows for maximum flexibility.

Pricing

Free for individual developers. Team and Enterprise plans available with advanced collaboration features, priority support, and enhanced security.