v3
OpenAPI 3.1.02026-07-31495191.1 MBBlocks
Retrieve block children
get/v1/blocks/{block_id}/children
Path parameters
block_idstring required
Query parameters
start_cursorstring uuid
page_sizenumber
Headers
Notion-Version'2026-03-11' required
The API version to use for this request. The latest version is 2026-03-11.