How to integrate CarsXE MCP with Atomic Agent

Connect Atomic Agent to CarsXE MCP. Decode vin and summarize vehicle specs, check recalls for a used car, and more using natural language, with authentication handled for you.

CarsXE logoCarsXE
Api Key

CarsXE is a vehicle data API platform for VIN specs, recalls, license plate decoding, market values, history, images, and automotive lookups. Use it to turn raw vehicle identifiers into clear, useful car data fast.

12 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 CarsXE.

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 CarsXE account. See the Atomic Agent documentation for installation instructions.

Also integrate CarsXE with

How Atomic Agent connects to CarsXE

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

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

Use CarsXE from Atomic Agent

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

Check Lien and Theft Records

Retrieve reportable US lien and theft events for a VIN.

Decode License Plate

Look up vehicle identity from a license plate using CarsXE's current global v2 decoder.

Decode OBD Code

Translate an OBD-II diagnostic trouble code into a readable diagnosis.

Get Vehicle Market Value

Estimate wholesale, retail, and trade-in values for a VIN using CarsXE's current v2 valuation, optionally adjusted for state, mileage, and condition.

Get Recall Batch

Make exactly one read request for a CarsXE recall batch.

Get Vehicle History

Retrieve title, brand, junk/salvage, insurance, VIN-change, and historical title records for a VIN.

Get Vehicle Images

Find up to 10 vehicle photos by make and model, with optional year, trim, angle, image type, size, color, quality, transparency, and license filters.

Get Vehicle Recalls

Find safety recall campaigns either for one VIN or for a year, make, and model.

Get Vehicle Specifications

Decode a 17-character VIN into vehicle identity, specifications, equipment, colors, and warranty data.

Get Year Make Model Data

Look up detailed vehicle and trim information by year, make, and model without a VIN.

Recognize License Plate

Analyze a publicly accessible vehicle image and return license-plate candidates, regions, confidence, bounding boxes, and detected vehicle details.

Submit Recall Batch

Create one asynchronous CarsXE recall-check batch for 1 to 10,000 VIN entries.

FAQ

Frequently asked questions

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

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

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