How to connect Findymail 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 Findymail account to Cowork via Composio Connect, enabling it to find verified email for John at acme.com, create a new contact list for leads, verify deliverability of this email address, and more such actions on your behalf without compromising your account security.

Also integrate Findymail with

Connecting Findymail 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 Findymail account

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

For example, ask Cowork to:

  • "Find verified email for John at acme.com"
  • "Create a new contact list for leads"
  • "Verify deliverability of this email address"

It will prompt you to authenticate and authorize access.

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

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

The Findymail MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Findymail account. It provides structured and secure access to verified B2B contact data, so your agent can create and manage contact lists, find and verify emails, and streamline your outreach workflow automatically.

  • Automated contact list management: Let your agent create new contact lists, fetch all your lists, or delete lists as your prospecting needs change.
  • Precise contact discovery: Ask your agent to find and retrieve emails for prospects based on full name and company domain, making it easier to build targeted outreach campaigns.
  • Bulk contact retrieval: Direct your agent to list all contacts within a specific list, enabling quick access to leads for export or follow-up.
  • Email deliverability verification: Have your agent check if an email address is valid and safe to use before sending that crucial first message.
  • Seamless CRM enrichment: Use verified contact details to automatically enrich your CRM, helping you keep data accurate and actionable for your sales team.

Supported Tools & Triggers

Tools
Create Contact ListTool to create a new contact list.
Delete Contact ListTool to delete a specified contact list by its id.
Find Email by NameTool to find someone's email using their full name and company domain.
Get Contact ListsTool to retrieve all contact lists.
List ContactsTool to retrieve contacts from a specified list (paginated).
Verify EmailTool to verify the deliverability of an email address.

How to build Findymail MCP Agent with another framework

FAQ

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

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

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

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

Used by agents from

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HubSpot
Agent.ai
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Context
Letta
glean
HubSpot
Agent.ai
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Entelligence
Rolai

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