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Harness | MCPFlix

Harness

Free

by MCP Community

In-memory testing toolkit for MCP servers in TypeScript — supertest for MCP

v0.1.0Added Apr 12, 2026

mcpmodel-context-protocoltestingharnesstest-toolkit

Works with:ClaudeGPTGeminiCopilot

Harness MCP Server

In-memory testing toolkit for MCP servers in TypeScript — supertest for MCP

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Quick install

npx -y mcp-harness

Add to claude_desktop_config.json

{
  "mcpServers": {
    "harness": {
      "command": "npx",
      "args": ["-y", "mcp-harness"]
    }
  }
}

Authentication

Not declared

Server class

Community

Compliance

None declared

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