How to connect Zoominfo to Claude Cowork

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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 Zoominfo account to Cowork via Composio Connect, enabling it to find companies in New York with over 500 employees, enrich this contact with latest job title, list recent news about target accounts, and more such actions on your behalf without compromising your account security.

Also integrate Zoominfo with

Connecting Zoominfo 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 Zoominfo account

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

For example, ask Cowork to:

  • "Find companies in New York with over 500 employees"
  • "Enrich this contact with latest job title"
  • "List recent news about target accounts"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Zoominfo 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 Zoominfo through MCP without you sharing account credentials directly with the agent.

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

The Zoominfo MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Zoominfo account. It provides structured and secure access to rich B2B sales intelligence, so your agent can search companies, enrich contact and company data, analyze intent signals, and surface actionable go-to-market insights for you.

  • Company and contact data enrichment: Instantly have your agent pull detailed profiles, firmographics, and contact information for any business or person of interest.
  • Smart company and contact search: Let your agent find the right leads by searching Zoominfo's vast database using criteria like location, industry, and role.
  • Intent signal analysis: Enable your agent to analyze buying intent signals and help prioritize outreach based on real-time market activity.
  • Technology and news enrichment: Ask your agent to uncover what technologies a company uses or find the latest news and scoops about prospects and clients.
  • Location-based prospecting: Have your agent filter and enrich location details to support precise territory planning and targeted campaigns.

Supported Tools & Triggers

Tools
Company EnrichCompany enrich
Contact EnrichContact enrich
Intent EnrichIntent enrich
Location EnrichLocation enrich
News EnrichNews enrich
Scoop EnrichScoop enrich
Technology EnrichTechnology enrich
Company SearchReturns a list of companies from zoominfo's data which meet the specified search criteria.
Company Search InputsReturns a list of fields you can use as input for the company search action.
Contact SearchReturns a list of contacts from zoominfo's data that meet the specified search criteria.
Contact Search InputsReturns a list of fields you can use as input for the contact search action.
Intent SearchUse this endpoint to search for companies and recommended contacts based on intent data.
Intent Search InputsReturns a list of fields you can use as input for the intent action.
News SearchReturns a list of news articles from zoominfo's data which meet the specified search criteria.
News Search InputsReturns a list of fields you can use as input for the news search endpoint.
Scoop SearchReturns a list of scoops from zoominfo's data which meet the specified search criteria.
Scoop Search InputsReturns a list of fields you can use as input for the scoop search action.

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FAQ

What are the differences in Tool Router MCP and Zoominfo MCP?

With a standalone Zoominfo MCP server, the agents and LLMs can only access a fixed set of Zoominfo tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Zoominfo and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Claude Cowork?

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 Zoominfo tools.

Can I manage the permissions and scopes for Zoominfo while using Tool Router?

Yes, absolutely. You can configure which Zoominfo 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.

How safe is my data with Composio Tool Router?

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 Zoominfo data and credentials are handled as safely as possible.

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