Arca for Cursor

build.arca.mcp/arca-mcp-server

Arca is a private data vault where your AI stores your structured data, semantic memory and skills.

client:Cursor transport:streamable-http

Install Arca in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "arca-mcp-server": {
      "url": "https://mcp.arca.build"
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs