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How to connect Explorium MCP to Claude

Connect Claude Web, Desktop and Cowork to Explorium MCP. Find firmographics for acme corporation, get technographic stack for example.com, and more using natural language, with authentication handled for you.

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Explorium AgentSource MCP provides structured company, professional, contact, firmographic, technographic, and business-event data. Use it to enrich leads, power data-driven workflows, and improve agent decisions.

12 Tools

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 Explorium account to Claude via Composio Connect, enabling it to find firmographics for Acme Corporation, get technographic stack for example.com, list recent business events for Acme, 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.

Also integrate Explorium MCP with

ChatGPTHermesAtomic Agent

Connecting Explorium 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 Explorium account

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

For example, ask Claude to:

  • "Find firmographics for Acme Corporation"
  • "Get technographic stack for example.com"
  • "List recent business events for Acme"

It will prompt you to authenticate and authorize access.

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

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

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

Troubleshooting

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

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

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

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

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

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

3. Why does the Explorium authorization link not work?

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

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

4. Why do Explorium actions fail after they worked before?

The Explorium connection can expire or lose permission.

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

5. How do I switch to a different Explorium account?

Claude can manage the Explorium connection for you.

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

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

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

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

Supported Tools

Every Explorium MCP action and event your agent gets out of the box.

Autocomplete

Provides standardized parameter values that MUST be used in fetch-entities filter operations and bombora-intent enrichment.

Enrich-business

Enriches business data enrichment calls.

Enrich-prospects

Enriches prospect data using up to 3 parallel enrichment calls.

Fetch-businesses

Searches for businesses using filter criteria.

Fetch-businesses-events

Retrieves detailed business-related events from the Explorium API in bulk.

Fetch-businesses-statistics

Fetch aggregated insights into businesses by industry, revenue, employee count, and geographic distribution.

Fetch-prospects

Searches for prospects (employees) using detailed filter criteria.

Fetch-prospects-events

Retrieves prospect-related events from the Explorium API in bulk.

Fetch-prospects-statistics

Fetch aggregated insights into prospects by job department, and geographic distribution.

Match-business

Retrieves Explorium business IDs that are REQUIRED as input parameters for all business enrichment operations (enrich-business, fetch-businesses-events).

Match-prospects

Retrieves Explorium prospect IDs that are REQUIRED as input parameters for all prospect enrichment operations (enrich-prospects, fetch-prospects-events).

Web-search

Perform web search using Explorium Search capabilities.

FRAMEWORKS

How to build Explorium MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Explorium MCP with ChatGPT

Hermes logo

Hermes

Use Explorium MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Explorium MCP with Atomic Agent

FAQ

Frequently asked questions

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

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

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