How to integrate Clay MCP with Atomic Agent

Connect Atomic Agent 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.

17 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Clay.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Clay account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Clay

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Clay to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Clay. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Clay account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

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.

Use Clay from Atomic Agent

With your account connected, ask Atomic Agent to work with Clay in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

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.

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. Atomic Agent 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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