How to connect Clay MCP to Claude Cowork

Connect Claude Cowork to Clay MCP. Find enriched contacts for acme corp, enrich leads and retrieve emails and titles, and more using natural language, with authentication handled for you.

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Clay MCP is a prospect enrichment service for researching companies and contacts. It runs enrichment providers and Clay functions to return enriched prospect data.

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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 Clay account to Cowork via Composio Connect, enabling it to find enriched contacts for Acme Corp, enrich leads and retrieve emails and titles, run enrichment providers for startup lists, and more such actions on your behalf without compromising your account security.

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Connecting Clay 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 Clay account

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

For example, ask Cowork to:

  • "Find enriched contacts for Acme Corp"
  • "Enrich leads and retrieve emails and titles"
  • "Run enrichment providers for startup lists"

It will prompt you to authenticate and authorize access.

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

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

The Clay MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Clay account. It provides structured and secure access so your agent can perform Clay operations on your behalf.

TOOLS

Supported Tools

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

Add-company-data-points

Add data points to companies in an existing search.

Add-contact-data-points

Add data points to contacts in an existing search.

Ask-question-about-accounts

Ask a natural language question about one or more accounts available in Clay Audiences.

Find-and-enrich-company

Find and enrich a single company by domain or LinkedIn URL.

Find-and-enrich-contacts-at-company

Search for contacts at a company by role, title, name, or department.

Find-and-enrich-list-of-contacts

Find and enrich specific named contacts at their companies.

Get-credits-available

Check if credits are available for the workspace.

Get-current-workspace

Report which Clay workspace this connection is pinned to.

Get subroutine input options

Fetch the available dropdown options for a subroutine input that has a configured options source.

Get-task

Get task status and results by task ID.

Get-task-context

Retrieve the current state of a task — all entities, enrichment values, and statuses.

List subroutines

List available functions.

Query-objects

Query audience accounts, contacts, or deals using natural language.

Run subroutine

Execute a function on contacts/companies FROM AN EXISTING SEARCH (Company Address, Company Industry, Company Employee Count, Company Domain, Company Job Openings, Company Revenue (Exact), Company Latest Funding, Enrich Person, Company News, Enrich Company, Find People at Company, Person Full Name, Person Job Title, Enrich Person and Find Contact Details, Person Location, Website Traffic, Website Technology Stack, Work Email).

Run subroutine direct

Execute a custom function on one or more sets of provided inputs.

Run subroutine no mapping

Run a custom subroutine on search entities.

Track-event

Track an analytics event with optional properties.

FRAMEWORKS

How to build Clay MCP Agent with another framework

FAQ

Frequently asked questions

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

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

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