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Notion API Skill

This skill enables interaction with Notion workspaces through the Notion REST API. Use curl and jq for direct REST calls, or write ad-hoc scripts as appropriate for the task.

Authentication

API Key Handling

1. Environment Variable : Check if NOTION_API_TOKEN is available in the environment
2. User-Provided Key : If the user provides an API key in context, use that instead
3. No Key Available : If neither is available, use AskUserQuestion (or equivalent) to request the API key from the user

IMPORTANT : Never display, log, or send NOTION_API_TOKEN anywhere except in the Authorization header. Confirm its existence, ask if missing, use it in requests—but never echo or expose it.

Request Headers

All requests require these headers:

-H "Authorization: Bearer $NOTION_API_TOKEN" \
-H "Notion-Version: 2025-09-03" \
-H "Content-Type: application/json"

Verifying Authentication

Test the API key by retrieving the bot user:

curl -s "https://api.notion.com/v1/users/me" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Base URL and Conventions

• Base URL : https://api.notion.com
• API Version : 2025-09-03 (required header)
• Data Format : JSON for all request/response bodies
• IDs : UUIDv4 format (dashes optional in requests)
• Timestamps : ISO 8601 format (2020-08-12T02:12:33.231Z)
• Property Names : snake_case
• Empty Values : Use null instead of empty strings

Rate Limits

• Average : 3 requests per second per integration
• Bursts : Brief bursts above this limit are allowed
• Rate Limited Response : HTTP 429 with Retry-After header
• Strategy : Implement exponential backoff when receiving 429 responses

Request Size Limits

Confirmation for Destructive Operations

IMPORTANT : Before executing any operation that modifies or deletes data, ask the user for confirmation. This includes:

• Updating pages or blocks
• Deleting/archiving pages or blocks
• Modifying database schemas
• Creating pages (if multiple or in batch)
• Any bulk operations

For a logical group of related operations, a single confirmation is sufficient.

Core API Endpoints

Search

Search across all accessible pages and databases:

curl -s -X POST "https://api.notion.com/v1/search" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "search term",
    "filter": {"property": "object", "value": "page"},
    "sort": {"direction": "descending", "timestamp": "last_edited_time"},
    "page_size": 100
  }' | jq

Filter values: "page" or "data_source" (or omit for both)

Pages

Retrieve a Page

curl -s "https://api.notion.com/v1/pages/{page_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Note : This returns page properties, not content. For content, use "Retrieve block children" with the page ID.

Create a Page

curl -s -X POST "https://api.notion.com/v1/pages" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "parent": {"page_id": "parent-page-id"},
    "properties": {
      "title": {
        "title": [{"text": {"content": "Page Title"}}]
      }
    },
    "children": [
      {
        "object": "block",
        "type": "paragraph",
        "paragraph": {
          "rich_text": [{"type": "text", "text": {"content": "Paragraph content"}}]
        }
      }
    ]
  }' | jq

Parent options:

• {"page_id": "..."} - Create under a page
• {"database_id": "..."} - Create in a database (legacy)
• {"data_source_id": "..."} - Create in a data source (API v2025-09-03+)

Update a Page

curl -s -X PATCH "https://api.notion.com/v1/pages/{page_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "properties": {
      "title": {"title": [{"text": {"content": "Updated Title"}}]}
    },
    "icon": {"type": "emoji", "emoji": "📝"},
    "archived": false
  }' | jq

Additional update options: cover, is_locked, in_trash

Archive (Delete) a Page

curl -s -X PATCH "https://api.notion.com/v1/pages/{page_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{"archived": true}' | jq

Retrieve a Page Property Item

For properties with more than 25 references:

curl -s "https://api.notion.com/v1/pages/{page_id}/properties/{property_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Blocks (Page Content)

Retrieve Block Children

curl -s "https://api.notion.com/v1/blocks/{block_id}/children?page_size=100" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Use the page ID as block_id to get page content. Check has_children on each block for nested content.

Append Block Children

curl -s -X PATCH "https://api.notion.com/v1/blocks/{block_id}/children" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "children": [
      {
        "object": "block",
        "type": "heading_2",
        "heading_2": {
          "rich_text": [{"type": "text", "text": {"content": "New Section"}}]
        }
      },
      {
        "object": "block",
        "type": "paragraph",
        "paragraph": {
          "rich_text": [{"type": "text", "text": {"content": "Content here"}}]
        }
      }
    ]
  }' | jq

Maximum 100 blocks per request, up to 2 levels of nesting.

Position options in request body:

• Default: appends to end
• "position": {"type": "start"} - Insert at beginning
• "position": {"type": "after_block", "after_block": {"id": "block-id"}} - Insert after specific block

Retrieve a Block

curl -s "https://api.notion.com/v1/blocks/{block_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Update a Block

curl -s -X PATCH "https://api.notion.com/v1/blocks/{block_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "paragraph": {
      "rich_text": [{"type": "text", "text": {"content": "Updated content"}}]
    }
  }' | jq

The update replaces the entire value for the specified field.

Delete a Block

curl -s -X DELETE "https://api.notion.com/v1/blocks/{block_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Moves block to trash (can be restored).

Databases

Retrieve a Database

curl -s "https://api.notion.com/v1/databases/{database_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Returns database structure including data sources and properties.

Query a Database

curl -s -X POST "https://api.notion.com/v1/databases/{database_id}/query" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "filter": {
      "property": "Status",
      "select": {"equals": "Done"}
    },
    "sorts": [
      {"property": "Created", "direction": "descending"}
    ],
    "page_size": 100
  }' | jq

See references/filters-and-sorts.md for comprehensive filter and sort documentation.

Create a Database

curl -s -X POST "https://api.notion.com/v1/databases" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "parent": {"page_id": "parent-page-id"},
    "title": [{"type": "text", "text": {"content": "My Database"}}],
    "is_inline": true,
    "initial_data_source": {
      "properties": {
        "Name": {"title": {}},
        "Status": {
          "select": {
            "options": [
              {"name": "To Do", "color": "red"},
              {"name": "In Progress", "color": "yellow"},
              {"name": "Done", "color": "green"}
            ]
          }
        },
        "Due Date": {"date": {}}
      }
    }
  }' | jq

Update a Database

curl -s -X PATCH "https://api.notion.com/v1/databases/{database_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "title": [{"text": {"content": "Updated Title"}}],
    "description": [{"text": {"content": "Database description"}}]
  }' | jq

Data Sources (API v2025-09-03+)

Data sources are individual tables within a database. As of API version 2025-09-03, databases can contain multiple data sources.

Create a Data Source

curl -s -X POST "https://api.notion.com/v1/data_sources" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "parent": {"type": "database_id", "database_id": "database-id"},
    "title": [{"type": "text", "text": {"content": "New Data Source"}}],
    "properties": {
      "Name": {"title": {}},
      "Description": {"rich_text": {}}
    }
  }' | jq

Users

List All Users

curl -s "https://api.notion.com/v1/users?page_size=100" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Retrieve a User

curl -s "https://api.notion.com/v1/users/{user_id}" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Retrieve Bot User (Self)

curl -s "https://api.notion.com/v1/users/me" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Comments

Retrieve Comments

curl -s "https://api.notion.com/v1/comments?block_id={block_id}&page_size=100" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" | jq

Use a page ID as block_id for page-level comments.

Create a Comment

On a page:

curl -s -X POST "https://api.notion.com/v1/comments" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "parent": {"page_id": "page-id"},
    "rich_text": [{"type": "text", "text": {"content": "Comment content"}}]
  }' | jq

Reply to a discussion:

curl -s -X POST "https://api.notion.com/v1/comments" \
  -H "Authorization: Bearer $NOTION_API_TOKEN" \
  -H "Notion-Version: 2025-09-03" \
  -H "Content-Type: application/json" \
  -d '{
    "discussion_id": "discussion-id",
    "rich_text": [{"type": "text", "text": {"content": "Reply content"}}]
  }' | jq

Note : The API cannot start new inline discussion threads or edit/delete existing comments.

Pagination

Paginated endpoints return:

• has_more: Boolean indicating more results exist
• next_cursor: Cursor for the next page
• results: Array of items

To iterate through all results:

1. Make the initial request (omit start_cursor)
2. Check has_more in the response
3. If true, extract next_cursor and include it as start_cursor in the next request
4. Repeat until has_more is false

Example request with cursor:

{
  "page_size": 100,
  "start_cursor": "v1%7C..."
}

Error Handling

Best Practices

1. Store IDs : When creating pages/databases, store the returned IDs for future updates
2. Use Property IDs : Reference properties by ID rather than name for stability
3. Batch Operations : Aggregate multiple small operations into fewer requests
4. Respect Rate Limits : Implement exponential backoff for 429 responses
5. Checkhas_more: Always handle pagination for list endpoints
6. Validate Before Updates : Retrieve current state before making updates
7. Use Environment Variables : Never hardcode API keys
8. Handle Errors Gracefully : Check response status codes and error messages
9. Schema Size : Keep database schemas under 50KB for optimal performance
10. Properties Limit : Properties with >25 page references require separate retrieval

References

For detailed documentation on specific topics, see:

• references/block-types.md - All supported block types and their structures
• references/property-types.md - Database property types and value formats
• references/filters-and-sorts.md - Database query filter and sort syntax
• references/rich-text.md - Rich text object structure and annotations

Weekly Installs

4.4K

Repository

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GitHub Stars

228

First Seen

Jan 28, 2026

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