How to integrate Notion MCP with Atomic Agent

Connect Atomic Agent to Notion MCP. Summarize recent meeting notes in notion, create a notion project page from tasks, and more using natural language, with authentication handled for you.

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Notion MCP is a service that exposes Notion pages, databases, search, and tasks to integrations. Use it to give agents structured, authenticated access to your Notion workspace.

37 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 Notion.

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

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How Atomic Agent connects to Notion

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

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

Use Notion from Atomic Agent

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

Notion-convert-page-to-skill

Mark an existing Notion page as a skill without changing its content.

Notion-create-attachment

Create an attachment and upload it to Notion.

Notion-create-comment

Add a comment to a page or specific content.

Notion-create-database

Creates a new Notion database using SQL DDL syntax, or a canonical typed database for tasks, projects, or skills.

Notion-create-file-upload

Create a short-lived URL for uploading one local file directly to Notion.

Notion-create-folder

Creates an empty Notion Folder.

Notion-create-pages

## Overview Creates one or more Notion pages, with the specified properties and content.

Notion-create-view

Create a new view on a Notion database.

Notion-download-attachment

Download the contents of a small UTF-8 text attachment created by the Notion MCP `create-attachment` tool.

Notion-duplicate-page

Duplicate a Notion page.

Notion-fetch

Retrieves details about a Notion entity (page, database, data source, or saved database view) by URL or ID.

Notion-get-async-task

Retrieves the current status of an async task that was started by another tool (for example, "create_pages" called with "allow_async": true).

Notion-get-comments

Get comments and discussions from a Notion page.

Notion-get-session-status

Get the latest turn's status for a Custom Agent session without waiting.

Notion-get-teams

Retrieves a list of teams (teamspaces) in the current workspace.

Notion-get-users

Retrieves a list of users in the current workspace.

Notion-list-favorite-pages

List the current user's favorite pages and databases in sidebar order.

Notion-list-private-pages

List the current user's top-level pages and databases in their Private sidebar section.

Notion-list-recent-pages

List pages and databases the current user recently viewed, ranked by recency and visit frequency.

Notion-list-session-events

List short summaries of saved events in a Custom Agent session.

Notion-list-shared-pages

List pages and databases in the current user's Shared sidebar section.

Notion-move-pages

Move one or more Notion pages or databases to a new parent.

Notion-query-data-sources

Query data from Notion databases using SQL or by specifying a view.

Notion-query-meeting-notes

Query the current user's meeting notes data source.

Notion-query-sessions

List agent sessions available to the integration.

Notion-read-session-event

Read the full visible content of one saved Custom Agent session event.

Notion-search

Search the user's Notion workspace and connected sources (Slack, Google Drive, GitHub, Jira, Teams, SharePoint, OneDrive, Linear) and return a ranked list of results to read.

Notion-search-agents

Search agents by name or description, or browse the current user's favorite agents and the workspace's newest agents.

Notion-search-sessions

Search past agent sessions by topic in a periodically refreshed index and return matching session URLs and excerpts.

Notion-send-message-to-session

Send a follow-up message to a Custom Agent session you can access.

Notion-spawn-session

Start a session with a published Custom Agent.

Notion-stop-session

Stop a running Custom Agent session you can access.

Notion-update-data-source

Update a Notion data source's schema, title, or attributes using SQL DDL statements.

Notion-update-folder

Update an existing Notion Folder with an explicit Folder operation.

Notion-update-page

## Overview Update a Notion page's properties or content.

Notion-update-view

Update a view's name, filters, sorts, or display configuration.

Notion-wait-session

Wait for the latest turn in a Custom Agent session to stop running.

FAQ

Frequently asked questions

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

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

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