How to integrate Cradl AI MCP with Atomic Agent

Connect Atomic Agent to Cradl AI MCP. Extract invoice totals from uploaded pdfs, list failed cradl ai extraction jobs, and more using natural language, with authentication handled for you.

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Cradl AI is an API-first platform for AI-powered document extraction workflows. Use it to turn invoices, forms, and PDFs into structured data at scale.

11 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 Cradl AI.

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 Cradl AI account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Cradl AI

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

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

Use Cradl AI from Atomic Agent

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

Download File

Download document, OCR, annotation, prediction, or run-variable content from a Cradl AI file URL returned by another Cradl AI tool.

Get Agent Run

Get the current state and outputs of one Cradl AI agent run.

Get Document

Get metadata, processing links, and annotations for one Cradl AI document by ID.

Get Prediction

Get one extracted prediction, including its status, fields, errors, and downloadable output references.

List Agent Runs

List processing runs for an agent, optionally filtered by status or creation/update time.

List Agents

List document-processing agents available to the connected Cradl AI workspace.

List Documents

List documents in the connected Cradl AI workspace and discover document IDs and content/output file URLs.

List Predictions

List extracted predictions, optionally filtered by model, and discover prediction IDs and output file URLs.

Process Document

Create a persistent Cradl agent run and document, then upload one document for asynchronous extraction in a single call.

Start Agent Run

Create a processing run for an existing Cradl AI agent.

Upload Document to Run

Create a document attached to a Cradl AI agent run and upload its PDF, image, or email bytes.

FAQ

Frequently asked questions

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

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

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