How to connect Lakera Guard to Claude Cowork

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks. This guide walks you through the easiest and most secure way to connect your Lakera Guard account to Cowork via Composio Connect, enabling it to screen prompts for injection attempts, list active Lakera Guard projects, flag unsafe chatbot responses before sending, and more such actions on your behalf without compromising your account security.

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Lakera Guard is an AI security platform that screens prompts, responses, and application interactions for safety risks. It helps teams detect prompt injection, unsafe content, and policy violations before they reach users.

10 Tools

Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Lakera Guard account to Cowork via Composio Connect, enabling it to screen prompts for injection attempts, list active Lakera Guard projects, flag unsafe chatbot responses before sending, and more such actions on your behalf without compromising your account security.

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Connecting Lakera Guard to Claude Cowork

1. Open Customize

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

2. Add the Composio MCP server

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

3. 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 Cowork

4. Connect your Lakera Guard account

Back in Cowork, ask the agent to connect to Lakera Guard or give it any Lakera Guard-related task.

For example, ask Cowork to:

  • "Screen prompts for injection attempts"
  • "List active Lakera Guard projects"
  • "Flag unsafe chatbot responses before sending"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Lakera Guard account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Lakera Guard through MCP without you sharing account credentials directly with the agent.

What is the Lakera Guard MCP server, and what's possible with it?

The Lakera Guard MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Lakera Guard account. It provides structured and secure access to content screening, detector evaluations, guardrail policies, and projects, so your agent can screen interactions, assess risks, configure policies, manage projects, and review safety settings on your behalf.

  • AI interaction screening: Have your agent screen the latest LLM or agent interaction and return the policy decision before your application continues.
  • Focused risk evaluation: Direct your agent to evaluate content against configured detectors and review the confidence result from each detector.
  • Guardrail policy management: Let the agent create, review, update, or delete policies that combine built-in detectors with custom guardrails.
  • Safety project management: Instruct your agent to create, inspect, update, or delete projects while assigning policies, metadata, and detection or flagging behavior.
  • Configuration review: Have your agent retrieve policy and project details to check detector settings, custom guardrails, assigned projects, metadata, and configured actions.
TOOLS

Supported Tools

Every Lakera Guard action and event your agent gets out of the box.

Create Policy

Create an Enterprise Lakera policy with built-in detectors and/or custom guardrails.

Create Project

Create an Enterprise Lakera project, optionally assigning a policy, metadata, and detect-or-flag action.

Delete Policy

Permanently delete an Enterprise Lakera policy by ID.

Delete Project

Permanently and irreversibly delete an Enterprise Lakera project by ID.

Evaluate Detectors

Evaluate content and return one confidence result per configured detector without producing an aggregate flagging decision or Guard screening log.

Get Policy

Retrieve an Enterprise Lakera policy by ID, including its detector configuration, custom guardrails, version, and assigned projects.

Get Project

Retrieve an Enterprise Lakera project by ID, including its assigned policy, metadata, and detect-or-flag action.

Screen Content

Screen the latest LLM or agent interaction with Lakera Guard and return the policy decision.

Update Policy

Replace an Enterprise Lakera policy's complete configuration and create a new policy version.

Update Project

Update an Enterprise Lakera project by ID.

FAQ

Frequently asked questions

With a standalone Lakera Guard MCP server, the agents and LLMs can only access a fixed set of Lakera Guard tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Lakera Guard 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 Lakera Guard tools.

Yes, absolutely. You can configure which Lakera Guard 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 Lakera Guard data and credentials are handled as safely as possible.

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