Cursor

Cursor supports MCP servers via its settings. OpaqueVault works identically to the Claude Code integration.

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Setup

In Cursor settings → MCP → Add server:

{
  "opaquevault": {
    "command": "ov",
    "args": ["mcp", "serve"]
  }
}

Or edit ~/.cursor/mcp.json directly:

{
  "mcpServers": {
    "opaquevault": {
      "command": "ov",
      "args": ["mcp", "serve"]
    }
  }
}

Restart Cursor. OpaqueVault’s 7 tools will be available to the AI.

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Usage

Identical to Claude Code. Ask Cursor’s AI to run commands that need credentials — it will call vault_run automatically.

The interceptor runs regardless of which MCP client you use — it’s in ov mcp serve, not in the client.

Windows users

Native Windows MCP support is in development (OV-59). Until it lands, use WSL2 for Cursor MCP integration: install OpaqueVault inside WSL2 with curl -fsSL https://get.opaquevault.com | sh, and point Cursor’s MCP config at the WSL2-hosted ov binary.

The Windows-native CLI works today — see the installation guide.