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mcp/harbor

Windsurf send16 mcp render_email_content

How to: Windsurf send16 mcp render_email_content

client:Windsurf transport:streamable-http tool:render_email_content

Add send16 mcp to Windsurf

  1. 01

    Open ~/.codeium/windsurf/mcp_config.json and merge this in. Keep any servers already there. 

{
  "mcpServers": {
    "send16-mcp": {
      "serverUrl": "https://mcp.send16.com/mcp"
    }
  }
}
  1. 02

    Save the file and restart Windsurf.

  2. 03

    Ask for something render_email_content does. Windsurf lists the server's tools on connect and calls render_email_content itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that send16 mcp's identifier in your config matches the one above exactly.

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

Set these first

send16 mcp will not start until these are set, so render_email_content never becomes available.

  • SEND16_API_KEY

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.

send16 mcp MCP server