Notion

Notion API provides RESTful workspace management and content collaboration with OAuth 2.0 and API key authentication. Supports 50 endpoints covering pages, databases, blocks, users, and comments with JSON-encoded requests and responses.

Core functionality includes creating, reading, updating, and archiving pages with property management and nested page structures. Database API enables querying, filtering, and schema management with support for inline and full-page databases. Blocks API manipulates content with support for 50+ block types including paragraphs, headings, lists, tables, code blocks, callouts, synced blocks, and embeds.

Advanced features include rich text formatting, mentions, file attachments, and template blocks. Search functionality across workspace content. User management with workspace member listing. Pagination support for large result sets with cursor-based navigation. SCIM integration for Enterprise workspace user provisioning.

Official SDKs for JavaScript, Python, Java, PHP, and Ruby. Comprehensive API reference with detailed object schemas. Free to use for all Notion users. Production environment only. Ideal for workflow automation, custom integrations, CMS implementations, knowledge base management, and connecting Notion with external tools like Zapier, Slack, and Salesforce.