v1
latestOpenAPI 3.1.0MIT OR Apache-2.02026-07-17107151343.7 KBflows
Get a thumbnail image from a block's video tap.
Works with any block that exposes thumbnail tee elements, including builtin.thumbnail (index 0) and compositor blocks (one per input). The first request activates the thumbnail branch; subsequent requests are served from cache.
get/api/flows/{id}/blocks/{block_id}/thumbnail
Path parameters
idstring required
Flow ID (UUID)
block_idstring required
Block instance ID (e.g., 'b0')
Query parameters
indexinteger
Tap index (default 0, e.g. compositor input index)
Response
JPEG thumbnail image