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MCP verified MIT Self-run

1password Kiro Plugin

mcp-1password-1password-kiro-plugin · by 1Password

A Kiro plugin for the 1Password Developer Environments MCP server

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Install

$ agentstack add mcp-1password-1password-kiro-plugin

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ● Environment & secrets Used
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed
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Declared compatibility

Claude CodeClaude DesktopCursorWindsurf

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

1Password Kiro Plugin

A Kiro plugin that connects Kiro to the 1Password desktop app's local MCP server for 1Password Developer Environments.

The plugin lets Kiro help with secure project environment setup — listing Developer Environments, inspecting variable names, adding variables, and creating local .env mounts. Secret values stay controlled by 1Password and are never shared with Kiro.

> Platform: The 1Password Kiro Power is currently macOS only.

[](https://kiro.dev/launch/mcp/add?name=1password&config=%7B%22command%22%3A%221password-mcp%22%2C%22args%22%3A%5B%5D%2C%22disabled%22%3Afalse%7D)

Prerequisites

  • macOS with the 1Password desktop app installed.
  • The 1Password MCP Server is enabled in the desktop app under Settings > Developer > MCP Server > Integrate with MCP clients.
  • A 1Password account with Developer Environments enabled.

The local MCP server is expected at:

/Applications/1Password.app/Contents/MacOS/1password-mcp

Documentation

Step 1: Turn on access to the MCP server

To turn on the 1Password MCP server:

  1. In 1Password, go to Settings > Developer > MCP Server, then enable "Integrate with MCP clients".

Step 2: Install the Kiro Power

Option 1: Kiro Power Marketplace
  • Search for "1Password" at https://kiro.dev/powers
  • Click "Add to Kiro" to open the installation page in Kiro
  • Click "+ Install" to install the Power
  • Click "Try power" to validate your environment and get started.
Option 2: Install from GitHub
  • In Kiro, click the Powers icon in the Kiro Activity Bar or choose "Powers: Focus on Installed view"
  • Choose "Add Custom Power"
  • From the menu, choose "Import Power from GitHub"
  • Paste in the repo URL (https://github.com/1Password/1password-kiro-plugin)
  • Choose 1password in the list of installed Powers
  • Click "Try power" to validate your environment and get started.

What's Included

| File | Purpose | | ---------------------- | --------------------------------------------------------------------------------------------------------------------------------- | | [mcp.json](mcp.json) | MCP server configuration that points Kiro at the bundled 1password-mcp binary. | | [POWER.md](POWER.md) | Steering doc describing when and how Kiro should use the 1Password MCP server, the exposed tools, common flows, and safety rules. | | [LICENSE](LICENSE) | MIT license. |

Example Prompts

Once the plugin is enabled in Kiro, you can ask for tasks like:

  • "List my 1Password Environments"
  • "Create a local .env mount here"
  • "Show me the variable names in my project environment"
  • "Add a placeholder variable for my OpenAI API key"
  • "Create a new Environment called my-project"

The 1Password desktop app may prompt for approval when Kiro connects to the MCP server or accesses an Environment.

License and Support

This power is released under the [MIT license](LICENSE).

It integrates with the 1Password desktop app, which is proprietary software.

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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