Notion MCP

Notion MCP

Access Notion via MCP (Model Context Protocol) with managed authentication.

Quick Start

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': 'meeting notes', 'query_type': 'internal'}).encode()
req = urllib.request.Request('https://api.maton.ai/notion/notion-search', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://api.maton.ai/notion/{tool-name}

Maton proxies requests to mcp.notion.com and automatically injects your credentials. The {tool-name} corresponds to the MCP tool name (e.g., notion-search).

Request Headers

MCP requests use the Mcp-Session-Id header for session management. If not specified, the gateway initializes a new session and returns the session ID in the Mcp-Session-Id response header. You can include this session ID in subsequent requests to reuse the same session.

Authentication

All requests require the Maton API key:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

1. Sign in or create an account at maton.ai
2. Go to maton.ai/settings
3. Copy your API key

Connection Management

Manage your Notion MCP connections at https://api.maton.ai.

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections?app=notion&method=MCP&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'notion', 'method': 'MCP'}).encode()
req = urllib.request.Request('https://api.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "{connection_id}",
    "status": "PENDING",
    "creation_time": "2025-12-08T07:20:53.488460Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "notion",
    "method": "MCP",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple Notion connections (eg. OAuth2, MCP), you must specify which MCP connection to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': 'meeting notes', 'query_type': 'internal'}).encode()
req = urllib.request.Request('https://api.maton.ai/notion/notion-search', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
req.add_header('Maton-Connection', '{connection_id}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If you have multiple connections, always include this header to ensure requests go to the intended account.

Security & Permissions

• Access is scoped to pages, databases, blocks, and users within the connected Notion workspace.
• All write operations require explicit user approval. Before executing any create, update, or delete call, confirm the target resource and intended effect with the user.

MCP Reference

All MCP tools use POST method:

Search

Search for pages and databases:

POST /notion/notion-search
Content-Type: application/json

{
  "query": "meeting notes",
  "query_type": "internal"
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"results\":[{\"id\":\"30702dc5-9a3b-8106-b51b-ed6d1bfeeed4\",\"title\":\"Meeting Summary Report\",\"url\":\"https://www.notion.so/30702dc59a3b8106b51bed6d1bfeeed4\",\"type\":\"page\",\"highlight\":\"Meeting materials\",\"timestamp\":\"2026-02-15T00:07:00.000Z\"}],\"type\":\"workspace_search\"}"
    }
  ],
  "isError": false
}

Search for users:

POST /notion/notion-search
Content-Type: application/json

{
  "query": "john@example.com",
  "query_type": "user"
}

With date filter:

POST /notion/notion-search
Content-Type: application/json

{
  "query": "quarterly report",
  "query_type": "internal",
  "filters": {
    "created_date_range": {
      "start_date": "2024-01-01",
      "end_date": "2025-01-01"
    }
  }
}

Fetch Content

Fetch page by URL:

POST /notion/notion-fetch
Content-Type: application/json

{
  "id": "https://notion.so/workspace/Page-a1b2c3d4e5f67890"
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"metadata\":{\"type\":\"page\"},\"title\":\"Project Overview\",\"url\":\"https://www.notion.so/30702dc59a3b8106b51bed6d1bfeeed4\",\"text\":\"Here is the result of \\\"view\\\" for the Page with URL https://www.notion.so/30702dc59a3b8106b51bed6d1bfeeed4 as of 2026-02-14T22:56:21.276Z:\\n\\n\\n{\\\"title\\\":\\\"Project Overview\\\"}\\n\\n\\n# Project Overview\\n\\nThis document outlines the project goals and milestones.\\n\\n\"}"
    }
  ],
  "isError": false
}

Fetch by UUID:

POST /notion/notion-fetch
Content-Type: application/json

{
  "id": "12345678-90ab-cdef-1234-567890abcdef"
}

Fetch data source (collection):

POST /notion/notion-fetch
Content-Type: application/json

{
  "id": "collection://12345678-90ab-cdef-1234-567890abcdef"
}

Include discussions:

POST /notion/notion-fetch
Content-Type: application/json

{
  "id": "page-uuid",
  "include_discussions": true
}

Create Pages

Create a simple page:

POST /notion/notion-create-pages
Content-Type: application/json

{
  "pages": [
    {
      "properties": {"title": "My New Page"},
      "content": "# Introduction\n\nThis is my new page content."
    }
  ]
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"pages\":[{\"id\":\"31502dc5-9a3b-816d-a2ac-e9b7ec9aece7\",\"url\":\"https://www.notion.so/31502dc59a3b816da2ace9b7ec9aece7\",\"properties\":{\"title\":\"My New Page\"}}]}"
    }
  ],
  "isError": false
}

Create page under parent:

POST /notion/notion-create-pages
Content-Type: application/json

{
  "parent": {"page_id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890"},
  "pages": [
    {
      "properties": {"title": "Child Page"},
      "content": "# Child Page Content"
    }
  ]
}

Create page in data source (database):

POST /notion/notion-create-pages
Content-Type: application/json

{
  "parent": {"data_source_id": "f336d0bc-b841-465b-8045-024475c079dd"},
  "pages": [
    {
      "properties": {
        "Task Name": "New Task",
        "Status": "In Progress",
        "Priority": 5,
        "Is Complete": "__NO__",
        "date:Due Date:start": "2024-12-25"
      }
    }
  ]
}

Update Page

Update properties:

POST /notion/notion-update-page
Content-Type: application/json

{
  "page_id": "f336d0bc-b841-465b-8045-024475c079dd",
  "command": "update_properties",
  "properties": {
    "title": "Updated Page Title",
    "Status": "Done"
  }
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"page_id\":\"f336d0bc-b841-465b-8045-024475c079dd\"}"
    }
  ],
  "isError": false
}

Replace entire content:

POST /notion/notion-update-page
Content-Type: application/json

{
  "page_id": "f336d0bc-b841-465b-8045-024475c079dd",
  "command": "replace_content",
  "new_str": "# New Heading\n\nCompletely replaced content."
}

Replace content range:

POST /notion/notion-update-page
Content-Type: application/json

{
  "page_id": "f336d0bc-b841-465b-8045-024475c079dd",
  "command": "replace_content_range",
  "selection_with_ellipsis": "# Old Section...end of section",
  "new_str": "# New Section\n\nUpdated section content."
}

Insert content after:

POST /notion/notion-update-page
Content-Type: application/json

{
  "page_id": "f336d0bc-b841-465b-8045-024475c079dd",
  "command": "insert_content_after",
  "selection_with_ellipsis": "## Previous section...",
  "new_str": "\n## New Section\n\nInserted content here."
}

Move Pages

Move to page:

POST /notion/notion-move-pages
Content-Type: application/json

{
  "page_or_database_ids": ["31502dc5-9a3b-816d-a2ac-e9b7ec9aece7"],
  "new_parent": {
    "page_id": "31502dc5-9a3b-81e4-b090-c6f705459e38"
  }
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"result\":\"Successfully moved 1 item: 31502dc5-9a3b-816d-a2ac-e9b7ec9aece7\"}"
    }
  ],
  "isError": false
}

Move to workspace:

POST /notion/notion-move-pages
Content-Type: application/json

{
  "page_or_database_ids": ["page-id-1", "page-id-2"],
  "new_parent": {
    "type": "workspace"
  }
}

Move to database:

POST /notion/notion-move-pages
Content-Type: application/json

{
  "page_or_database_ids": ["page-id"],
  "new_parent": {
    "data_source_id": "f336d0bc-b841-465b-8045-024475c079dd"
  }
}

Duplicate Page

POST /notion/notion-duplicate-page
Content-Type: application/json

{
  "page_id": "31502dc5-9a3b-816d-a2ac-e9b7ec9aece7"
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"page_id\":\"31502dc5-9a3b-812d-a865-ccac00a21f72\",\"page_url\":\"https://www.notion.so/31502dc59a3b812da865ccac00a21f72\"}"
    }
  ],
  "isError": false
}

Create Database

Create with SQL DDL schema:

POST /notion/notion-create-database
Content-Type: application/json

{
  "title": "Task Database",
  "schema": "CREATE TABLE (\"Task Name\" TITLE, \"Status\" SELECT('To Do':red, 'In Progress':yellow, 'Done':green), \"Priority\" NUMBER)"
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"result\":\"Created database: \\nThe title of this Database is: Task Database\\n\\n\\n...\"}"
    }
  ],
  "isError": false
}

Update Data Source

POST /notion/notion-update-data-source
Content-Type: application/json

{
  "data_source_id": "c0f0ce51-c470-4e96-8c3f-cafca780f1a0",
  "name": "Updated Database Name"
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"result\":\"Updated data source: \\n...\"}"
    }
  ],
  "isError": false
}

Get Comments

POST /notion/notion-get-comments
Content-Type: application/json

{
  "page_id": "30702dc5-9a3b-8106-b51b-ed6d1bfeeed4"
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"results\":[{\"object\":\"comment\",\"id\":\"31502dc5-9a3b-8164-aa9c-001dfb9cb942\",\"discussion_id\":\"discussion://pageId/blockId/discussionId\",\"created_time\":\"2026-02-28T20:00:00.000Z\",\"last_edited_time\":\"2026-02-28T20:00:00.000Z\",\"created_by\":{\"object\":\"user\",\"id\":\"237d872b-594c-81d6-b88e-000200ac4d04\"},\"rich_text\":[{\"type\":\"text\",\"text\":{\"content\":\"This looks great! Ready for review.\"},\"annotations\":{\"bold\":false,\"italic\":false,\"strikethrough\":false,\"underline\":false,\"code\":false,\"color\":\"default\"}}]}],\"has_more\":false}"
    }
  ],
  "isError": false
}

Create Comment

POST /notion/notion-create-comment
Content-Type: application/json

{
  "page_id": "f336d0bc-b841-465b-8045-024475c079dd",
  "rich_text": [
    {
      "type": "text",
      "text": {
        "content": "This looks great! Ready for review."
      }
    }
  ]
}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"result\":{\"status\":\"success\",\"id\":\"31502dc5-9a3b-8164-aa9c-001dfb9cb942\"}}"
    }
  ],
  "isError": false
}

List Teams

POST /notion/notion-get-teams
Content-Type: application/json

{}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"joinedTeams\":[],\"otherTeams\":[],\"hasMore\":false}"
    }
  ],
  "isError": false
}

List Users

POST /notion/notion-get-users
Content-Type: application/json

{}

Response:

{
  "content": [
    {
      "type": "text",
      "text": "{\"results\":[{\"type\":\"person\",\"id\":\"237d872b-594c-81d6-b88e-000200ac4d04\",\"name\":\"John Doe\",\"email\":\"john@example.com\"},{\"type\":\"bot\",\"id\":\"b638ec59-55e9-4889-8dc1-a523ff2c8677\",\"name\":\"Notion MCP\"}],\"has_more\":false}"
    }
  ],
  "isError": false
}

Code Examples

JavaScript

const response = await fetch('https://api.maton.ai/notion/notion-search', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': `Bearer ${process.env.MATON_API_KEY}`
  },
  body: JSON.stringify({
    query: 'meeting notes',
    query_type: 'internal'
  })
});
const data = await response.json();
console.log(data);

Python

import os
import requests

response = requests.post(
    'https://api.maton.ai/notion/notion-search',
    headers={
        'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
        'Content-Type': 'application/json'
    },
    json={
        'query': 'meeting notes',
        'query_type': 'internal'
    }
)
print(response.json())

Property Types Reference

When creating or updating pages in databases:

Special naming: Properties named "id" or "url" must be prefixed with userDefined: (e.g., "userDefined:URL").

Error Handling

Troubleshooting: API Key Issues

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

1. Verify the API key is valid by listing connections:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

1. Ensure your URL path starts with notion. For example:

• Correct: https://api.maton.ai/notion/v1/search
• Incorrect: https://api.maton.ai/v1/search

Notes

• All IDs are UUIDs (with or without hyphens)
• MCP tool responses wrap content in {"content": [{"type": "text", "text": "..."}], "isError": false} format
• The text field contains JSON-stringified data that should be parsed
• Use notion-fetch to get page/database structure before creating or updating pages
• For databases, fetch first to get the data source ID (collection://... URL)

Resources

• Notion MCP Overview
• MCP Supported Tools
• Maton Community
• Maton Support