How to integrate Notion MCP with Codex

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Notion MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

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Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.

45 Tools13 Triggers

Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Notion MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Notion with

ChatGPTOpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkOpenCodeCursorVS CodeOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool responses: Handle them to minimise context rot.
  • Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install Notion MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

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 to your notes, docs, wikis, and tasks, so your agent can perform actions like creating pages, managing databases, adding content, commenting, and organizing your Notion workspace for you.

  • Bulk content creation and formatting: Let your agent efficiently add and format multiple blocks of text, lists, or markdown content to Notion pages in one go.
  • Automated page and database management: Have your agent create new pages, duplicate existing ones, or set up entire databases with custom properties—no manual setup required.
  • Smart commenting and collaboration: Enable your agent to add comments to pages or discussion threads, making real-time collaboration smoother.
  • Workspace organization and cleanup: Ask your agent to archive, delete, or restore pages and blocks, keeping your workspace tidy and up to date.
  • Deep block and structure retrieval: Direct your agent to fetch metadata, list child blocks, or dig into nested content for analysis, reporting, or workflow automation.

Conclusion

You've successfully integrated Notion with Codex using Composio's MCP server. Now you can interact with Notion directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

  • Seamless integration across CLI, VS Code, and standalone app
  • Natural language commands for Notion operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various Notion operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities
TOOLS & TRIGGERS

Supported Tools and Triggers

Every Notion action and event your agent gets out of the box.

Add multiple content blocks (bulk, user-friendly)

Bulk-add content blocks to Notion.

Append code blocks (code, quote, equation)

Append code and technical blocks (code, quote, equation) to a Notion page.

Append layout blocks (divider, TOC, columns)

Append layout blocks (divider, TOC, breadcrumb, columns) to a Notion page.

Append media blocks (image, video, audio, files)

Append media blocks (image, video, audio, file, pdf, embed, bookmark) to a Notion page.

Append table blocks

Append table blocks to a Notion page.

Append task blocks (to-do, toggle, callout)

Append task blocks (to-do, toggle, callout) to a Notion page or block.

Append text blocks (paragraphs, headings, lists)

Append text blocks (paragraphs, headings, lists) to a Notion page.

Archive Notion Page

Archives (moves to trash) or unarchives (restores from trash) a specified Notion page.

Create comment

Adds a comment to a Notion page (via `parent_page_id`) OR to an existing discussion thread (via `discussion_id`); cannot create new discussion threads on specific blocks (inline comments).

Create Notion Database

Creates a new Notion database as a subpage under a specified parent page with a defined properties schema.

Create Notion file upload

Tool to create a Notion FileUpload object and retrieve an upload URL.

Create Notion page

Creates a new page in a Notion workspace under a specified parent page or database.

Delete a block

Archives a Notion block, page, or database using its ID, which sets its 'archived' property to true (like moving to "Trash" in the UI) and allows it to be restored later.

Duplicate page

Duplicates a Notion page, including all its content, properties, and nested blocks, under a specified parent page or workspace.

Fetch All Notion Block Contents

Tool to fetch all child blocks for a given Notion block.

Fetch Notion Block Children

Retrieves a paginated list of direct, first-level child block objects along with contents for a given parent Notion block or page ID; use block IDs from the response for subsequent calls to access deeply nested content.

Fetch Notion block metadata

Fetches metadata for a Notion block (including pages, which are special blocks) using its UUID.

Fetch comments

Fetches unresolved comments for a specified Notion block or page ID.

Fetch Notion Data

Fetches Notion items (pages and/or databases) from the Notion workspace, use this to get minimal data about the items in the workspace with a query or list all items in the workspace with minimal data

Fetch Database

Fetches a Notion database's structural metadata (properties, title, etc.

Fetch database row

Retrieves a Notion database row's properties and metadata; use fetch_block_contents for page content blocks.

Get about user

Retrieves detailed information about a specific Notion user, such as their name, avatar, and email, based on their unique user ID.

Get page markdown

Retrieve a Notion page's full content rendered as Notion-flavored Markdown in a single API call.

Get page property

Call this to get a specific property from a Notion page when you have a valid `page_id` and `property_id`; handles pagination for properties returning multiple items.

Insert row database

Creates a new page (row) in a specified Notion database.

Insert Row From Natural Language

Creates a new row (page) in a Notion database from a natural language description.

List data source templates

Tool to list all templates for a Notion data source.

List Notion file uploads

Tool to retrieve file uploads for the current bot integration, sorted by most recent first.

List users

Retrieves a paginated list of users (excluding guests) from the Notion workspace; the number of users returned per page may be less than the requested `page_size`.

Move Page

Tool to move a Notion page to a new parent (page or database).

Query database

Queries a Notion database to retrieve pages (rows).

Query database with filter

Tool to query a Notion database with server-side filtering, sorting, and pagination.

Query data source

Tool to query a Notion data source.

Replace page content (with backup)

Safely replaces a page's child blocks by optionally backing up current content, deleting existing children, then appending new children in batches.

Retrieve Comment

Tool to retrieve a specific comment by its ID.

Retrieve Database Property

Tool to retrieve a specific property object of a Notion database.

Retrieve Notion file upload

Tool to retrieve details of a Notion File Upload object by its identifier.

Retrieve page

Retrieve a Notion page's properties/metadata (not block content) by page_id.

Search Notion pages and databases

Searches Notion pages and databases by title.

Send file upload

Tool to transmit file contents to Notion for a file upload object.

Update block

Updates existing Notion block's text content.

Update Page

Update page properties, icon, cover, or archive status.

Update Database Row (Page)

Updates a specific row/page within a Notion database by its page UUID (row_id).

Update database schema

Updates an existing Notion database's schema including title, description, and/or properties (columns).

Upsert database rows

Tool to upsert rows in a Notion database by querying for existing rows and creating or updating them.

FRAMEWORKS

How to build Notion MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Notion MCP with ChatGPT

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Notion MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Notion MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Notion MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Notion MCP with Claude Cowork

Cursor logo

Cursor

Use Notion MCP with Cursor

OpenClaw logo

OpenClaw

Use Notion MCP with OpenClaw

Hermes logo

Hermes

Use Notion MCP with Hermes

CLI logo

CLI

Use Notion MCP with CLI

Google ADK logo

Google ADK

Use Notion MCP with Google ADK

LangChain logo

LangChain

Use Notion MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Notion MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Notion MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Notion MCP with LlamaIndex

CrewAI logo

CrewAI

Use Notion MCP with CrewAI

OpenCode logo

OpenCode

Use Notion MCP with OpenCode

VS Code logo

VS Code

Use Notion MCP with VS Code

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. Codex 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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Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

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