v3
latestOpenAPI 3.1.02026-07-31495191.1 MBBlocks
Append block children
patch/v1/blocks/{block_id}/children
Path parameters
block_idstring required
Headers
Notion-Version'2026-03-11' required
The API version to use for this request. The latest version is 2026-03-11.
Request body
Example request
{
"children": [
{
"embed": {
"caption": [
{
"text": {
"link": {
"url": "https://www.notion.com"
}
}
}
]
}
}
]
}