Notion
Access the Notion API with managed OAuth authentication. Query databases, create pages, manage blocks, and search your workspace.
Quick Start
# Search for pages
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': 'meeting notes'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/notion/v1/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('Notion-Version', '2025-09-03')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
Base URL
https://gateway.maton.ai/notion/{native-api-path}
Replace {native-api-path} with the actual Notion API endpoint path. The gateway proxies requests to api.notion.com and automatically injects your OAuth token.
Required Headers
All Notion API requests require the version header:
Notion-Version: 2025-09-03
Authentication
All requests require the Maton API key in the Authorization header:
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
- Sign in or create an account at maton.ai
- Go to maton.ai/settings
- Copy your API key
Connection Management
Manage your Notion OAuth connections at https://ctrl.maton.ai.
List Connections
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=notion&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'}).encode()
req = urllib.request.Request('https://ctrl.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://ctrl.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:
json
{
"connection": {
"connection_id": "21fd90f9-5935-43cd-b6c8-bde9d915ca80",
"status": "ACTIVE",
"creation_time": "2025-12-08T07:20:53.488460Z",
"last_updated_time": "2026-01-31T20:03:32.593153Z",
"url": "https://connect.maton.ai/?session_token=...",
"app": "notion",
"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://ctrl.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, specify which one to use with the Maton-Connection header:
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': 'meeting notes'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/notion/v1/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('Notion-Version', '2025-09-03')
req.add_header('Maton-Connection', '21fd90f9-5935-43cd-b6c8-bde9d915ca80')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
If omitted, the gateway uses the default (oldest) active connection.
Key Concept: Databases vs Data Sources
In API version 2025-09-03, databases and data sources are separate:
| Concept | Use For |
|---|---|
| Database | Creating databases, getting data source IDs |
| Data Source | Querying, updating schema, updating properties |
Use GET /databases/{id} to get the data_sources array, then use /data_sources/ endpoints:
{
"object": "database",
"id": "abc123",
"data_sources": [
{"id": "def456", "name": "My Database"}
]
}
API Reference
Search
Search for pages:
POST /notion/v1/search
Content-Type: application/json
Notion-Version: 2025-09-03
{
"query": "meeting notes",
"filter": {"property": "object", "value": "page"}
}
Search for data sources:
POST /notion/v1/search
Content-Type: application/json
Notion-Version: 2025-09-03
{
"filter": {"property": "object", "value": "data_source"}
}
Data Sources
Get Data Source
GET /notion/v1/data_sources/{dataSourceId}
Notion-Version: 2025-09-03
Query Data Source
POST /notion/v1/data_sources/{dataSourceId}/query
Content-Type: application/json
Notion-Version: 2025-09-03
{
"filter": {
"property": "Status",
"select": {"equals": "Active"}
},
"sorts": [
{"property": "Created", "direction": "descending"}
],
"page_size": 100
}
Update Data Source
PATCH /notion/v1/data_sources/{dataSourceId}
Content-Type: application/json
Notion-Version: 2025-09-03
{
"title": [{"type": "text", "text": {"content": "Updated Title"}}],
"properties": {
"NewColumn": {"rich_text": {}}
}
}
Databases
Get Database
GET /notion/v1/databases/{databaseId}
Notion-Version: 2025-09-03
Create Database
POST /notion/v1/databases
Content-Type: application/json
Notion-Version: 2025-09-03
{
"parent": {"type": "page_id", "page_id": "PARENT_PAGE_ID"},
"title": [{"type": "text", "text": {"content": "New Database"}}],
"properties": {
"Name": {"title": {}},
"Status": {"select": {"options": [{"name": "Active"}, {"name": "Done"}]}}
}
}
Pages
Get Page
GET /notion/v1/pages/{pageId}
Notion-Version: 2025-09-03
Create Page
POST /notion/v1/pages
Content-Type: application/json
Notion-Version: 2025-09-03
{
"parent": {"page_id": "PARENT_PAGE_ID"},
"properties": {
"title": {"title": [{"text": {"content": "New Page"}}]}
}
}
Create Page in Data Source
POST /notion/v1/pages
Content-Type: application/json
Notion-Version: 2025-09-03
{
"parent": {"data_source_id": "DATA_SOURCE_ID"},
"properties": {
"Name": {"title": [{"text": {"content": "New Page"}}]},
"Status": {"select": {"name": "Active"}}
}
}
Update Page Properties
PATCH /notion/v1/pages/{pageId}
Content-Type: application/json
Notion-Version: 2025-09-03
{
"properties": {
"Status": {"select": {"name": "Done"}}
}
}
Update Page Icon
PATCH /notion/v1/pages/{pageId}
Content-Type: application/json
Notion-Version: 2025-09-03
{
"icon": {"type": "emoji", "emoji": "🚀"}
}
Archive Page
PATCH /notion/v1/pages/{pageId}
Content-Type: application/json
Notion-Version: 2025-09-03
{
"archived": true
}
Blocks
Get Block Children
GET /notion/v1/blocks/{blockId}/children
Notion-Version: 2025-09-03
Append Block Children
PATCH /notion/v1/blocks/{blockId}/children
Content-Type: application/json
Notion-Version: 2025-09-03
{
"children": [
{
"object": "block",
"type": "paragraph",
"paragraph": {
"rich_text": [{"type": "text", "text": {"content": "New paragraph"}}]
}
}
]
}
Delete Block
DELETE /notion/v1/blocks/{blockId}
Notion-Version: 2025-09-03
Users
List Users
GET /notion/v1/users
Notion-Version: 2025-09-03
Get Current User
GET /notion/v1/users/me
Notion-Version: 2025-09-03
Filter Operators
equals,does_not_equalcontains,does_not_containstarts_with,ends_withis_empty,is_not_emptygreater_than,less_than
Block Types
paragraph,heading_1,heading_2,heading_3bulleted_list_item,numbered_list_itemto_do,code,quote,divider
Code Examples
JavaScript
const response = await fetch('https://gateway.maton.ai/notion/v1/search', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${process.env.MATON_API_KEY}`,
'Notion-Version': '2025-09-03'
},
body: JSON.stringify({ query: 'meeting' })
});
Python
import os
import requests
response = requests.post(
'https://gateway.maton.ai/notion/v1/search',
headers={
'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
'Notion-Version': '2025-09-03'
},
json={'query': 'meeting'}
)
Notes
- All IDs are UUIDs (with or without hyphens)
- Use
GET /databases/{id}to get thedata_sourcesarray containing data source IDs - Creating databases requires
POST /databasesendpoint - Delete blocks returns the block with
archived: true - IMPORTANT: When using curl commands, use
curl -gwhen URLs contain brackets (fields[],sort[],records[]) to disable glob parsing - IMPORTANT: When piping curl output to
jqor other commands, environment variables like$MATON_API_KEYmay not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.
Error Handling
| Status | Meaning |
|---|---|
| 400 | Missing Notion connection |
| 401 | Invalid or missing Maton API key |
| 429 | Rate limited (10 req/sec per account) |
| 4xx/5xx | Passthrough error from Notion API |
Troubleshooting: API Key Issues
- Check that the
MATON_API_KEYenvironment variable is set:
echo $MATON_API_KEY
- Verify the API key is valid by listing connections:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.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
- Ensure your URL path starts with
notion. For example:
- Correct:
https://gateway.maton.ai/notion/v1/search - Incorrect:
https://gateway.maton.ai/v1/search