Retainful MCP by usefulapi for Windsurf

io.usefulapi/retainful

List contacts and lists; create contacts, add them to lists and record events in Retainful.

client:Windsurf transport:streamable-http tools:7

Install Retainful MCP by usefulapi in Windsurf

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

{
  "mcpServers": {
    "retainful": {
      "serverUrl": "https://retainful.usefulapi.io/mcp"
    }
  }
}

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