MCP server for 1Password service accounts — tools and resources for vaults and credentials
To add 1password to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 3 environment variables, listed below.
Install
npx -y @takescake/1password-mcp@2.5.0Environment variables
OP_SERVICE_ACCOUNT_TOKENSet in your MCP configOP_KEYCHAIN_SERVICESet in your MCP configOP_KEYCHAIN_ACCOUNTSet in your MCP configInstall with your client
claude mcp add 1password --env OP_SERVICE_ACCOUNT_TOKEN=<YOUR_OP_SERVICE_ACCOUNT_TOKEN> --env OP_KEYCHAIN_SERVICE=<YOUR_OP_KEYCHAIN_SERVICE> --env OP_KEYCHAIN_ACCOUNT=<YOUR_OP_KEYCHAIN_ACCOUNT> -- npx -y @takescake/1password-mcp@2.5.0
Run this in a terminal to add the server to Claude Code.
What this does
1password exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
OP_SERVICE_ACCOUNT_TOKEN OP_KEYCHAIN_SERVICE OP_KEYCHAIN_ACCOUNT
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install 1password?
Run the Claude Code command in the install section to add 1password to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with 1password?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to 1password as well.
Does 1password need an API key?
Yes. Before it can run, set these environment variables: OP_SERVICE_ACCOUNT_TOKEN, OP_KEYCHAIN_SERVICE, OP_KEYCHAIN_ACCOUNT. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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