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How to connect Legal Data Hunter MCP to Claude

Connect Claude Web, Desktop and Cowork to Legal Data Hunter MCP. List supported countries for data discovery, find sources for uk labor cases, and more using natural language, with authentication handled for you.

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Legal Data Hunter MCP provides structured access to legal-data discovery workflows. Use it to explore supported countries and discover source coverage quickly.

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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 Legal Data Hunter account to Claude via Composio Connect, enabling it to list supported countries for data discovery, find sources for UK labor cases, extract available sources for corporate filings, 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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ChatGPTHermes

Connecting Legal Data Hunter 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 Legal Data Hunter account

Back in Claude, ask it to connect to Legal Data Hunter or give it any Legal Data Hunter-related task.

For example, ask Claude to:

  • "List supported countries for data discovery"
  • "Find sources for UK labor cases"
  • "Extract available sources for corporate filings"

It will prompt you to authenticate and authorize access.

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

What is the Legal Data Hunter Claude Connector, and what's possible with it?

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

Troubleshooting

1. Why does Claude not use the Composio connector for Legal Data Hunter?

The connector can show as connected, but Claude must use it in each Legal Data Hunter conversation.

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

2. Why does Claude show an MCP server error before Legal Data Hunter connects?

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

  • 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 Legal Data Hunter.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Legal Data Hunter authorization link not work?

The Composio connector is one server. Your Legal Data Hunter account connects separately when Claude asks for it.

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

4. Why do Legal Data Hunter actions fail after they worked before?

The Legal Data Hunter connection can expire or lose permission.

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

5. How do I switch to a different Legal Data Hunter account?

Claude can manage the Legal Data Hunter connection for you.

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

6. Why is my Legal Data Hunter connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Legal Data Hunter connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Legal Data Hunter 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 Legal Data Hunter.
TOOLS

Supported Tools

Every Legal Data Hunter MCP action and event your agent gets out of the box.

Discover countries

List all available countries with their document counts and source counts.

Discover sources

List all data sources available for a specific country.

Get document

Retrieve a legal document by its source and source_id.

Get filters

Get available filter values for a specific data source.

Report source issue

Report an issue with a data source.

Resolve reference

Resolve a loose legal reference to the exact document(s).

Search

Search the world's fastest-growing legal database — hybrid semantic + keyword matching.

FRAMEWORKS

How to build Legal Data Hunter MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Legal Data Hunter MCP with ChatGPT

Hermes logo

Hermes

Use Legal Data Hunter MCP with Hermes

FAQ

Frequently asked questions

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

Yes, absolutely. You can configure which Legal Data Hunter 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 Legal Data Hunter data and credentials are handled as safely as possible.

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