notion-api

What this skill does

# 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:

```bash
-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:

```bash
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

| Type | Limit |
|------|-------|
| Maximum block elements per payload | 1000 |
| Maximum payload size | 500KB |
| Rich text content | 2000 characters |
| URLs | 2000 characters |
| Equations | 1000 characters |
| Email addresses | 200 characters |
| Phone numbers | 200 characters |
| Multi-select options | 100 items |
| Relations | 100 related pages |
| People mentions | 100 users |
| Block arrays per request | 100 elements |

## 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:

```bash
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

```bash
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

```bash
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

```bash
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

```bash
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:

```bash
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

```bash
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

```bash
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

```bash
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

```bash
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

```bash
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

```bash
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

```bash
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