How to connect Listclean 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 Listclean account to Cowork via Composio Connect, enabling it to verify if this email address is valid, check how many email credits I have left, create a CSV for bulk email verification, and more such actions on your behalf without compromising your account security.

Listclean logoListclean
Api Key

Listclean is an email verification service that helps you validate and clean up your email lists. It improves deliverability and protects your sender reputation by removing invalid addresses.

16 Tools

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 Listclean account to Cowork via Composio Connect, enabling it to verify if this email address is valid, check how many email credits I have left, create a CSV for bulk email verification, and more such actions on your behalf without compromising your account security.

Also integrate Listclean with

Connecting Listclean 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 Listclean account

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

For example, ask Cowork to:

  • "Verify if this email address is valid"
  • "Check how many email credits I have left"
  • "Create a CSV for bulk email verification"

It will prompt you to authenticate and authorize access.

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

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

The Listclean MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Listclean account. It provides structured and secure access to your email verification tools, so your agent can perform actions like verifying emails, managing bulk verification lists, checking credits, and retrieving account info on your behalf.

  • Single email verification: Instantly check if an email address is valid, deliverable, or disposable—perfect for real-time signups or contact forms.
  • Bulk email list processing: Have your agent generate and upload CSV files of email addresses for large-scale verification and list cleaning.
  • Account credit monitoring: Easily monitor your remaining verification credits so your automations never hit a surprise limit.
  • Profile data retrieval: Let your agent fetch and review your Listclean account profile details for audits or reporting purposes.
TOOLS

Supported Tools

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

Create Bulk Verification List

Tool to create a CSV file with provided email addresses for bulk verification.

Delete List

Tool to permanently delete a single list from the account.

Download List Results as CSV

Tool to download list results as a CSV file.

Download List Results as JSON

Tool to download list results as JSON.

Get Account Profile

Tool to retrieve the authenticated account's profile.

Get Remaining Credits

Tool to retrieve remaining verification credits.

Get List Information

Tool to retrieve detailed information for a specific list.

Get Upload Status

Tool to retrieve the status of a specific upload.

Get Verification Logs

Tool to retrieve logs for all single email verifications.

List All Verification Lists

Tool to retrieve all email verification lists.

List CSV Uploads

Tool to retrieve the list of CSV uploads.

Start Upload

Tool to start a CSV upload process for bulk email verification.

Update Account Profile

Tool to update account profile details.

Upload Chunk

Tool to upload a chunk of a CSV file.

Verify Batch of Emails

Tool to verify a batch of email addresses (max 3000 emails).

Verify Email Address

Tool to verify an email's validity.

FAQ

Frequently asked questions

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

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

Start with Listclean.It takes 30 seconds.

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

Start building