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How to connect 1password to Claude

Connect Claude Web, Desktop and Cowork to 1password MCP. Find github login in your vault, create secure note for database credentials, and more using natural language, with authentication handled for you.

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1Password is a password manager and digital vault for storing logins, secrets, notes, and secure documents. It helps individuals and teams protect credentials, share access safely, and reduce password risk.

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Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your 1password account to Claude via Composio Connect, enabling it to find GitHub login in your vault, create secure note for database credentials, list expiring items across team vaults, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

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Connecting 1password to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your 1password account

Back in Claude, ask it to connect to 1password or give it any 1password-related task.

For example, ask Claude to:

  • "Find GitHub login in your vault"
  • "Create secure note for database credentials"
  • "List expiring items across team vaults"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your 1password account is ready to use.

What is the 1password Claude Connector, and what's possible with it?

The 1password MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your 1password account. It provides structured and secure access so your agent can perform 1password operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for 1password?

The connector can show as connected, but Claude must use it in each 1password conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to 1password again.

2. Why does Claude show an MCP server error before 1password connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for 1password.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect 1password.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the 1password authorization link not work?

The Composio connector is one server. Your 1password account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the 1password connection.
  • Composio creates a fresh 1password authorization link.
  • Open that link in your browser and finish the 1password sign-in.

4. Why do 1password actions fail after they worked before?

The 1password connection can expire or lose permission.

  • Ask Claude to inspect the 1password connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the 1password account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in 1password.
  • If the action still fails with a permission error, check that the connected account has that permission in 1password itself.

5. How do I switch to a different 1password account?

Claude can manage the 1password connection for you.

  • Ask Claude to disconnect or delete the current 1password account.
  • Ask Claude to connect 1password again.
  • Open the new Composio authorization link for 1password.
  • Sign in with the other 1password account in the browser.
  • After the account connects, ask Claude to retry the 1password task.

6. Why is my 1password connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your 1password connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If 1password tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect 1password.
TOOLS

Supported Tools

Every 1password action and event your agent gets out of the box.

Create Item

Creates a new item in a 1Password vault.

Delete Item

Permanently deletes an item from a 1Password vault.

Get Item

Retrieves a specific item from a vault, including all fields and secrets.

List Items

Lists all items in a given vault.

List Vaults

Lists all vaults the service account has access to.

Update Item

Updates an existing item's title or field values.

FRAMEWORKS

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Codex

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FAQ

Frequently asked questions

With a standalone 1password MCP server, the agents and LLMs can only access a fixed set of 1password tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from 1password and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right 1password tools.

Yes, absolutely. You can configure which 1password scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your 1password data and credentials are handled as safely as possible.

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