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Insomnia

Open-source API client with AI mock generation and native MCP server testing

freemium API Development api open-source rest graphql grpc mcp

Insomnia by Kong is an open-source, cross-platform API client for REST, GraphQL, gRPC, WebSockets, and SSE. Version 12 adds native MCP client support for testing MCP servers, AI-powered mock generation from natural language, and AI-assisted Git commits.

Pricing

Free with E2E cloud sync, $5/mo Individual, $12/user/mo Team

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