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GET
Reads one block. Writing isn’t available. To read children, use List block children.
string
required
Bearer <token>. See Tokens.
string
Optional. Only 2026-03-11 is accepted. Without it, the current version is used. A different value returns 400.
string
required
The block ID.

Block IDs

Use block IDs as you received them. Some blocks in a document nobody has opened use position-based IDs, which can change when the document is first edited.

Block object

string
The block ID.
object
One of page_id, block_id, data_source_id, or workspace.
string
The value from the block’s document.
string
The value from the block’s document.
object
The value from the block’s document.
object
The value from the block’s document.
boolean
true if it has children.
boolean
true if its document is in the trash.
string
The block type.

Block types

Blocks returned as unsupported include buttons, Bottari notes, files that couldn’t be signed, and cards for documents the integration can’t read (alias). Besides the rich text items used in properties, block text can include link_preview mentions.

Errors

See Common rules for shared errors.