v1

latestOpenAPI 3.1.0MIT OR Apache-2.02026-07-17107151343.7 KB
flows

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