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How to connect Legal Data Hunter MCP with ChatGPT

Connect ChatGPT 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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How to connect Legal Data Hunter MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your Legal Data Hunter account to ChatGPT via Composio Connect, so it can list supported countries, explore available sources, run discovery queries, retrieve your structured records, and export results through natural language commands without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Legal Data Hunter integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account. We will use the ChatGPT desktop app, and the steps are the same on the web.
  • Access to the Legal Data Hunter workspace you want to connect.
  • Composio plugin.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Legal Data Hunter to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Legal Data Hunter messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Legal Data Hunter.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting Legal Data Hunter

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

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
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

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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. ChatGPT 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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