m2n

m2n is a developer API that converts Markdown to Notion blocks and appends them directly to your pages. Send markdown via a simple REST endpoint and it gets converted into rich Notion content — headings, lists, tables, code blocks, nested structures, and more.

Key features:
- Append markdown content to any Notion page via API
- Append raw Notion blocks for full control
- Convert Notion pages back to markdown
- Clear page content programmatically
- Supports deep nesting, colors, and all common block types

Common use cases: AI output storing, documentation syncing, CI/CD report generation, note automation, and any workflow that
produces markdown and needs it in Notion.

1. Sign up at mark2notion.com and get your API key
2. Connect your Notion workspace from the dashboard
3. Share a Notion page with the integration
4. Send a POST request to append markdown to your page:

curl -X POST https://api.mark2notion.com/api/append \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"markdown": "# Hello from Mark2Notion", "pageId": "YOUR_PAGE_ID"}'

Full API documentation: https://docs.mark2notion.com