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1password MCP Server

by cakerepository Your server? Claim it
local only

1password runs on your own machine — the client starts it, so there is no endpoint to ping. 248 installs a week from npm. Last commit 31 Aug 2026.

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

Installs per day peak 274 · avg 63 · -15% w/w
a month agotoday
248
Installs / week
npm · @takescake/1password-mcp
20
Stars
1 open issues
31 Aug 2026
Last commit
0 releases in 90 days
Apache-2.0
License
TypeScript

What the code does

We read the source, 23 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command src/tools/op-run.ts:231
                    ? spawn(argv[0], argv.slice(1), {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add 1password -- npx -y @takescake/1password-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "1password": {
      "args": [
        "-y",
        "@takescake/1password-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.1password]
command = "npx"
args = ["-y", "@takescake/1password-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "1password": {
      "args": [
        "-y",
        "@takescake/1password-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "1password": {
      "args": [
        "-y",
        "@takescake/1password-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: OP_SERVICE_ACCOUNT_TOKEN (The Service Account Token from 1Password (required unless OP_KEYCHAIN_SERVICE is used on macOS)), OP_KEYCHAIN_SERVICE (macOS only: Keychain service name to read the 1Password service account token from when OP_SERVICE_ACCOUNT_TOKEN is not set), OP_KEYCHAIN_ACCOUNT (macOS only: Optional Keychain account name to narrow the lookup used with OP_KEYCHAIN_SERVICE). The author declared them in the registry entry; get the values from the project itself.

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1password — questions

Answers built from our own checks of this server.

Why is there no uptime for 1password?
1password runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @takescake/1password-mcp was installed 248 times last week.
How do I connect 1password?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @takescake/1password-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use 1password?
The npm package @takescake/1password-mcp was installed 248 times in the last week. Week over week that is -15%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is 1password open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript, 20 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.