Notion API Documentation

This is the complete API documentation for connecting to the Notion API using MindCloud's Universal API. If you are new to MindCloud, start with the Introduction to see how one API can sit in front of many different apps.

MindCloud is an integration company that offers one normalized API to access 3,100+ apps from a single place. It cleans up provider-specific quirks, keeps requests and responses consistent, and centralizes authentication so you do not need to manage separate flows for every app. Browse other apps.

Meet Notion: Write docs, organize projects, manage knowledge, and collaborate with teams. Keep reading to get started.

Quickstart

Before you run your first Notion request, you need three things:

1. A MindCloud account — sign in or create an account at MindCloud.
2. A MindCloud API Key — create one in API Keys. Keep it on your server.
3. At least one Notion connection — create or choose one in Connections. Note its connectionId.

Every Notion action uses the same URL pattern:

https://connect.mindcloud.co/v1/universal/notion/latest/actions/{actionSlug}

You need a MindCloud API Key and a Notion connection. Then call an action such as List Block Children:

curl --request GET \
  --url "https://connect.mindcloud.co/v1/universal/notion/latest/actions/list-block-children" \
  --header "Authorization: Bearer $MINDCLOUD_API_KEY" \
  --get \
  --data-urlencode "connectionId=$CONNECTION_ID"

Every response comes back in the same envelope, with your rows in a data array:

{
  "success": true,
  "data": [
    { "id": "1042", "name": "Ava" }
  ],
  "meta": {}
}

After your first request works, use Shape your requests to control arguments, pagination, filtering, fields, and errors.

Authentication

Authentication has two layers. Your MindCloud API Key authenticates the request to MindCloud, sent as a Bearer token in the Authorization header. The connectionId selects the connected Notion account that should run the action. MindCloud stores and refreshes the Notion credentials behind that connection, so you never send provider tokens with your requests.

Pass connectionId in the query string for GET and DELETE actions, and in the JSON body for POST, PUT, and PATCH actions. Keep your MindCloud API Key on your server; do not ship it in browser code, mobile apps, public repositories, or logs.

Notion actions

All 27 published actions for this Notion version. Each page documents the endpoint, arguments, and response controls.

• PUTAppend Block Children
• PUTComplete File Upload
• POSTCreate Comment
• POSTCreate Data Source
• POSTCreate Database
• POSTCreate File Upload
• POSTCreate Page
• DELETEDelete Block
• GETList Block Children
• GETList Comments
• GETList Data Source Templates
• GETList Users
• GETQuery Data Source
• GETRetrieve Block
• GETRetrieve Bot User
• GETRetrieve Data Source
• GETRetrieve Data Source Template
• GETRetrieve Database (Compatibility)
• GETRetrieve Page
• GETRetrieve Page Property Item
• GETRetrieve User
• GETSearch
• PUTSend File Upload
• PUTUpdate Block
• PUTUpdate Data Source
• PUTUpdate Database
• PUTUpdate Page

Related apps

More Productivity apps on the Universal API, behind the same REST shape. Or browse all apps.

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