Notion API Integration

Complete Notion API reference. See auxiliary files for detailed operations.

Quick Start

curl 'https://api.notion.com/v1/users/me' \
  -H "Authorization: Bearer $NOTION_API_KEY" \
  -H "Notion-Version: 2022-06-28"

Setup

On first use, read setup.md. Preferences stored in ~/notion-api-integration/memory.md.

When to Use

Any Notion operation: databases, pages, blocks, users, search, comments, properties.

Architecture

~/notion-api-integration/
├── memory.md      # Workspace context
└── databases.md   # Tracked database IDs

Quick Reference

Topic	File
Setup and memory	`setup.md`, `memory-template.md`
Databases: query, create, update	`databases.md`
Pages: CRUD, properties	`pages.md`
Blocks: content, children	`blocks.md`
Property types reference	`properties.md`
Filters and sorts	`filters.md`
Search and users	`search.md`
Pagination patterns	`pagination.md`
Error handling	`errors.md`

Core Rules

API version header required - Always include Notion-Version: 2022-06-28 (or newer)
Bearer token auth - Authorization: Bearer $NOTION_API_KEY
Page IDs without dashes - Remove dashes from URLs: abc123def456 not abc-123-def-456
Property names are case-sensitive - Match exactly as defined in database
Pagination mandatory - Use start_cursor for results over 100 items
Rate limits - 3 requests/second average, burst allowed
Integration access - Pages must be shared with integration to access

Authentication

Required environment variable:

NOTION_API_KEY - Internal integration token (starts with ntn_ or secret_)

# All requests require these headers
curl 'https://api.notion.com/v1/...' \
  -H "Authorization: Bearer $NOTION_API_KEY" \
  -H "Notion-Version: 2022-06-28" \
  -H "Content-Type: application/json"

Common Traps

Missing Notion-Version header - 400 error
Page ID with dashes - 404 not found
Property name mismatch - Silent failure or error
Skipping pagination - Miss data beyond first 100
No integration access - 404 even if page exists

External Endpoints

Endpoint	Purpose
`https://api.notion.com/v1/*`	All Notion API operations

No other endpoints are accessed.

Security & Privacy

Environment variable used:

NOTION_API_KEY - for API authentication

Sent to Notion: Database queries, page content, block updates via api.notion.com Stays local: API key (in environment variable only), ~/notion-api-integration/ preferences Never: Store API keys in files, access pages not shared with integration

Scope

This skill ONLY:

Makes requests to api.notion.com endpoints
Stores preferences in ~/notion-api-integration/
Provides curl and code examples

This skill NEVER:

Accesses files outside ~/notion-api-integration/
Makes requests to other endpoints
Stores API keys in files

Trust

By using this skill, data is sent to Notion (notion.com). Only install if you trust Notion with your workspace data.

Related Skills

Install with clawhub install <slug> if user confirms:

api — REST API patterns
pkm — Personal knowledge management
productivity — Task and productivity workflows

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