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mcp/harbor
Windsurf

postbag for Windsurf

io.github.parasxos/postbag

Local Claude Code and Codex sessions on one machine exchange letters through native inputs.

client:Windsurf transport:stdio runtime:pypi

Install postbag in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

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

{
  "mcpServers": {
    "postbag": {
      "command": "uvx",
      "args": [
        "postbag"
      ],
      "env": {
        "POSTBAG_CODEX": "<POSTBAG_CODEX>"
      }
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs

postbag in other clients

postbag MCP server