How to integrate Commerce Layer MCP with Atomic Agent

Connect Atomic Agent to Commerce Layer MCP. List open orders created in last day, create refund for order 12345 now, and more using natural language, with authentication handled for you.

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Commerce Layer is a headless commerce platform with transactional APIs for orders, inventory, pricing, customers, and fulfillment. Use it to centralize ecommerce operations and surface real-time commerce data.

10 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 Commerce Layer.

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 Commerce Layer account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Commerce Layer

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 Commerce Layer 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 Commerce Layer. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Commerce Layer 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 Commerce Layer MCP server, and what's possible with it?

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

Use Commerce Layer from Atomic Agent

With your account connected, ask Atomic Agent to work with Commerce Layer 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 Commerce Layer action and event your agent gets out of the box.

Create Customer

Create one Commerce Layer customer from an email and optional external-reference metadata.

Delete Customer

Permanently delete one Commerce Layer customer by exact ID.

Get Customer

Retrieve one customer by its Commerce Layer resource ID.

Get Order

Retrieve one Commerce Layer order by ID, optionally including customer, line-item, shipment, or return context.

Get Order Metric

Compute one common order KPI over optional date, market, currency, and status filters using the Commerce Layer Metrics API.

List Customers

Return one page of customers, optionally filtered by an exact email address.

List Orders

Return one page of orders, newest first by default, for operational review and follow-up by order ID.

List SKUs

Return one page of catalog SKUs for product discovery and ID lookup.

List Stock Items

Return one page of stock items with inventory quantities and SKU codes.

Update Customer

Update selected attributes of one Commerce Layer customer.

FAQ

Frequently asked questions

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

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

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