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1Password

io.github.CakeRepository/1password · v2.5.0

MCP server for 1Password service accounts — tools and resources for vaults and credentials

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add 1password -e OP_SERVICE_ACCOUNT_TOKEN=<OP_SERVICE_ACCOUNT_TOKEN> -e OP_KEYCHAIN_SERVICE=<OP_KEYCHAIN_SERVICE> -e OP_KEYCHAIN_ACCOUNT=<OP_KEYCHAIN_ACCOUNT> -- npx -y @takescake/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "1password": {
      "command": "npx",
      "args": [
        "-y",
        "@takescake/[email protected]"
      ],
      "env": {
        "OP_SERVICE_ACCOUNT_TOKEN": "<OP_SERVICE_ACCOUNT_TOKEN>",
        "OP_KEYCHAIN_SERVICE": "<OP_KEYCHAIN_SERVICE>",
        "OP_KEYCHAIN_ACCOUNT": "<OP_KEYCHAIN_ACCOUNT>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "1password": {
      "command": "npx",
      "args": [
        "-y",
        "@takescake/[email protected]"
      ],
      "env": {
        "OP_SERVICE_ACCOUNT_TOKEN": "<OP_SERVICE_ACCOUNT_TOKEN>",
        "OP_KEYCHAIN_SERVICE": "<OP_KEYCHAIN_SERVICE>",
        "OP_KEYCHAIN_ACCOUNT": "<OP_KEYCHAIN_ACCOUNT>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "1password": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@takescake/[email protected]"
      ],
      "env": {
        "OP_SERVICE_ACCOUNT_TOKEN": "<OP_SERVICE_ACCOUNT_TOKEN>",
        "OP_KEYCHAIN_SERVICE": "<OP_KEYCHAIN_SERVICE>",
        "OP_KEYCHAIN_ACCOUNT": "<OP_KEYCHAIN_ACCOUNT>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
OP_SERVICE_ACCOUNT_TOKEN
Optional, secret		The Service Account Token from 1Password (required unless OP_KEYCHAIN_SERVICE is used on macOS)
OP_KEYCHAIN_SERVICE
Optional		macOS only: Keychain service name to read the 1Password service account token from when OP_SERVICE_ACCOUNT_TOKEN is not set
OP_KEYCHAIN_ACCOUNT
Optional		macOS only: Optional Keychain account name to narrow the lookup used with OP_KEYCHAIN_SERVICE

Details

Package@takescake/[email protected] (NPM, stdio)
First published4 Jul 2026
Last updated4 Jul 2026
Registry nameio.github.CakeRepository/1password

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