How to connect Zoominfo 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 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.

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Zoominfo

Oauth2

Zoominfo is a comprehensive B2B contact and company database platform. It helps teams find, enrich, and manage sales leads to accelerate revenue.

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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

OpenAI Agents SDK Claude Agent SDK Claude Code Codex OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK Mastra AI LlamaIndex CrewAI

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.

TOOLS

Supported Tools

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

Company Enrich

Contact Enrich

Intent Enrich

Location Enrich

News Enrich

Scoop Enrich

Technology Enrich

Company Search

Returns a list of Companies from ZoomInfo's data which meet the specified search criteria.

Company Search Inputs

Returns a list of fields you can use as input for the Company Search Action.

Contact Search

Returns a list of Contacts from ZoomInfo's data that meet the specified search criteria.

Contact Search Inputs

Returns a list of fields you can use as input for the Contact Search Action.

Intent Search Inputs

Returns a list of fields you can use as input for the Intent Action.

News Search

Returns a list of news articles from ZoomInfo's data which meet the specified search criteria.

News Search Inputs

Returns a list of fields you can use as input for the News Search endpoint.

Scoop Search

Returns a list of Scoops from ZoomInfo's data which meet the specified search criteria.

Scoop Search Inputs

Returns a list of fields you can use as input for the Scoop Search Action.

FRAMEWORKS

How to build Zoominfo MCP Agent with another framework

OpenAI Agents SDK

Use Zoominfo MCP with OpenAI Agents SDK

Claude Agent SDK

Use Zoominfo MCP with Claude Agent SDK

Claude Code

Use Zoominfo MCP with Claude Code

Codex

Use Zoominfo MCP with Codex

OpenClaw

Use Zoominfo MCP with OpenClaw

Hermes

Use Zoominfo MCP with Hermes

CLI

Use Zoominfo MCP with CLI

Google ADK

Use Zoominfo MCP with Google ADK

LangChain

Use Zoominfo MCP with LangChain

Vercel AI SDK

Use Zoominfo MCP with Vercel AI SDK

Mastra AI

Use Zoominfo MCP with Mastra AI

LlamaIndex

Use Zoominfo MCP with LlamaIndex

CrewAI

Use Zoominfo MCP with CrewAI

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Hubspot

Oauth2Api Key

HubSpot is an all-in-one marketing, sales, and customer service platform. It lets teams nurture leads, automate outreach, and track every customer interaction in one place.

Pipedrive

Oauth2Api Key

Pipedrive is a sales management platform offering pipeline visualization, lead tracking, and workflow automation. It helps sales teams keep deals moving forward efficiently and never miss a follow-up.

Salesforce

Oauth2S2s Oauth2

Salesforce is a leading CRM platform that helps businesses manage sales, service, and marketing. It centralizes customer data, enabling teams to drive growth and build strong relationships.

Apollo

Api Key

Apollo is a CRM and lead generation platform that helps businesses discover contacts and manage sales pipelines. Use it to streamline customer outreach and track your deals from one place.

FAQ

Frequently asked questions

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.

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.

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.

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.

Start with Zoominfo.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Zoominfo tool your agent needs.Free to start.

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Customer stories

Teams ship real agents on Composio

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati

Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya

Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave

CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu

Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola

Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche

Co-Founder, Ingram Technologies