How to connect Clearout 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 Clearout account to Cowork via Composio Connect, enabling it to validate a list of emails for deliverability, check if this email is a business account, find the most likely domain for Acme Corp, and more such actions on your behalf without compromising your account security.

Also integrate Clearout with

Connecting Clearout 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 Clearout account

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

For example, ask Cowork to:

  • "Validate a list of emails for deliverability"
  • "Check if this email is a business account"
  • "Find the most likely domain for Acme Corp"

It will prompt you to authenticate and authorize access.

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

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

The Clearout MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Clearout account. It provides structured and secure access to email validation, prospecting, and enrichment tools, so your agent can perform actions like verifying email addresses, finding business contacts, checking domain details, and bulk-processing lists on your behalf.

  • AI-powered email verification: Instantly validate single or bulk email addresses to ensure deliverability and reduce bounce rates.
  • Email prospecting and enrichment: Find emails for people or companies, complete missing contact data, and verify if accounts are business or personal.
  • Domain and company intelligence: Retrieve company domains from names, fetch MX records, or pull WHOIS information to understand your leads and their infrastructure.
  • Disposable and catch-all detection: Check if an email is temporary or if a domain accepts all mail, helping you maintain list quality and avoid spam traps.
  • Bulk job automation: Upload, process, monitor, cancel, and download results for large-scale email finding and verification tasks, all through your agent.

Supported Tools & Triggers

Tools
Autocomplete Company to DomainTool to autocomplete company names to probable domains with confidence scores.
Business Account VerifyTool to check if an email belongs to a business/work account.
Catch-All VerifyTool to check if an email domain is catch-all.
Verify Disposable EmailTool to check if an email is from a disposable provider.
Find Domain MX RecordsTool to retrieve MX records for a domain in priority order.
Fetch Domain WHOIS InformationTool to fetch WHOIS record for a domain.
Bulk Email FinderTool to upload a CSV or XLSX contacts file for bulk email finding.
Cancel Bulk Email Finder JobTool to cancel a running bulk email finder job.
Bulk Email Finder Result DownloadTool to generate a bulk email finder result download URL.
Bulk Email VerifyTool to upload a CSV or XLSX file for bulk email verification.
Cancel Bulk Email Verification JobTool to cancel a running bulk email verification job.
Bulk Email Verify Progress StatusTool to retrieve progress for a bulk email verification job.
Bulk Email Verify Result DownloadTool to obtain a temporary URL for bulk email verification results.
Email Verify Get CreditsTool to fetch available email verification credits.
Instant Email VerifierTool to instantly verify a single email address.
Verify Free Email AccountTool to detect if an email is from a free email service provider.
Verify Gibberish EmailTool to verify if an email address is gibberish.
Reverse Lookup Company by DomainTool to find company information by domain.
Reverse Lookup Person by EmailTool to retrieve a person’s profile from an email address.
Find Person via LinkedIn URLTool to discover person information via a LinkedIn profile URL.
Role Account VerifierTool to determine if an email is a role-based account.

How to build Clearout MCP Agent with another framework

FAQ

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

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

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

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

Used by agents from

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Context
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HubSpot
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