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mcp/harbor
Claude Desktop

mockpost for Claude Desktop

io.github.reiarseni/mockpost

Local multi-channel message emulator for E2E testing, with MCP tools for LLM agents.

client:Claude Desktop transport:stdio runtime:pypi

Install mockpost in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mockpost": {
      "command": "uvx",
      "args": [
        "mockpost"
      ],
      "env": {
        "MOCKPOST_URL": "<MOCKPOST_URL>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

mockpost in other clients

mockpost MCP server