CueFrame · Schema
Composition
CompanyVideoVideo EditingVideo RenderingAI AgentsMCPMediaDeveloper Tools
Properties
| Name | Type | Description |
|---|---|---|
| v | number | |
| format | object | |
| tracks | array | |
| markers | array | |
| captions | object | |
| sourceSuggestionId | string | |
| license | object | |
| licenseVerification | string | |
| accessibility | object | |
| ownerOrgId | string | |
| acl | object | |
| media | object |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/cueframe-ai/json-schema/cueframe-ai-composition-schema.json",
"title": "Composition",
"x-generated": "2026-11-10",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/cueframe-ai-compositions-api-openapi.yml#/components/schemas/Composition",
"type": "object",
"properties": {
"v": {
"type": "number",
"const": 1
},
"format": {
"$ref": "#/$defs/Format"
},
"tracks": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1
},
"kind": {
"type": "string",
"enum": [
"video",
"audio",
"image",
"overlay",
"effect"
]
},
"name": {
"type": "string"
},
"enabled": {
"type": "boolean"
},
"volume": {
"type": "number",
"minimum": 0,
"maximum": 4
},
"contents": {
"type": "array",
"items": {
"anyOf": [
{
"$ref": "#/$defs/TimelineClip"
},
{
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1
},
"startTime": {
"type": "number",
"minimum": 0
},
"duration": {
"type": "number",
"exclusiveMinimum": 0
}
},
"required": [
"id",
"startTime",
"duration"
],
"additionalProperties": false
}
]
}
}
},
"required": [
"id",
"kind",
"contents"
],
"additionalProperties": false
}
},
"markers": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1
},
"startTime": {
"type": "number",
"minimum": 0
},
"endTime": {
"type": "number",
"minimum": 0
},
"kind": {
"type": "string",
"minLength": 1
},
"name": {
"type": "string"
},
"metadata": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
}
},
"required": [
"id",
"startTime",
"kind"
],
"additionalProperties": false
}
},
"captions": {
"oneOf": [
{
"type": "object",
"properties": {
"source": {
"type": "string",
"const": "derived"
},
"from": {
"type": "object",
"properties": {
"clipId": {
"type": "string"
}
},
"required": [
"clipId"
]
},
"segments": {
"type": "array",
"items": {
"type": "object",
"properties": {
"words": {
"type": "array",
"items": {
"type": "object",
"properties": {
"text": {
"type": "string",
"minLength": 1
},
"startMs": {
"type": "number",
"minimum": 0,
"description": "Word start on the composition timeline, in milliseconds."
},
"endMs": {
"type": "number",
"minimum": 0,
"description": "Word end on the composition timeline, in milliseconds."
},
"emphasis": {
"type": "boolean"
},
"annotate": {
"type": "string",
"enum": [
"circle",
"underline"
]
}
},
"required": [
"text",
"startMs",
"endMs"
]
}
}
},
"required": [
"words"
]
}
},
"style": {
"type": "object",
"properties": {
"fontFamily": {
"type": "string",
"minLength": 1
},
"fontSize": {
"description": "Font size as % of composition height (1-15, default 5). NOT px.",
"type": "number",
"minimum": 1,
"maximum": 15
},
"fontWeight": {
"type": "integer",
"minimum": 100,
"maximum": 900
},
"color": {
"type": "string",
"minLength": 1
},
"highlightColor": {
"type": "string",
"minLength": 1
},
"backgroundColor": {
"type": "string"
},
"plate": {
"type": "string",
"enum": [
"glass",
"solid",
"none"
]
},
"position": {
"type": "string",
"enum": [
"top",
"center",
"bottom"
]
},
"region": {
"description": "Optional caption layout box {x,y,w,h} in normalized output-frame coordinates. Overrides position; text starts at its top edge and wraps/pages within its width and height.",
"type": "object",
"properties": {
"x": {
"type": "number",
"minimum": 0,
"maximum": 1
},
"y": {
"type": "number",
"minimum": 0,
"maximum": 1
},
"w": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1
},
"h": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1
}
},
"required": [
"x",
"y",
"w",
"h"
]
},
"textTransform": {
"type": "string",
"enum": [
"none",
"uppercase",
"capitalize"
]
},
"letterSpacing": {
"description": "Base caption glyph spacing in pixels.",
"type": "number",
"minimum": -5,
"maximum": 20
},
"wordGapEm": {
"description": "Gap between caption runs as a multiple of base font size; default 0.35.",
"type": "number",
"minimum": 0,
"maximum": 2
},
"lineGapEm": {
"description": "Gap between caption lines as a multiple of base font size; default 0.25.",
"type": "number",
"minimum": 0,
"maximum": 2
},
"emphasisColor": {
"type": "string"
},
"emphasisGradient": {
"type": "string"
},
"emphasisScale": {
"type": "number",
"exclusiveMinimum": 0
},
"emphasisFontFamily": {
"type": "string"
},
"emphasisFontWeight": {
"type": "integer",
"minimum": 100,
"maximum": 900
},
"emphasisTextTransform": {
"type": "string",
"enum": [
"none",
"uppercase",
"capitalize"
]
},
"emphasisLetterSpacing": {
"type": "number"
},
"emphasisFontStyle": {
"type": "string",
"enum": [
"normal",
"italic"
]
},
"entrance": {
"type": "string",
"enum": [
"none",
"fade",
"word-pop",
"stagger-up"
]
},
"entranceMs": {
"type": "number",
"minimum": 0
},
"entranceStaggerMs": {
"type": "number",
"minimum": 0
},
"exitMs": {
"type": "number",
"minimum": 0
},
"emphasisPlate": {
"type": "boolean"
},
"emphasisPlateColor": {
"type": "string"
},
"emphasisPlateTextColor": {
"type": "string"
},
"emphasisPlateAltColor": {
"type": "string"
},
"emphasisPlateAltTextColor": {
"type": "string"
},
"emphasisPlateRadius": {
"type": "number",
"minimum": 0
},
"emphasisPlatePadX": {
"type": "number"
},
"emphasisPlatePadY": {
"type": "number"
},
"emphasisPlateReveal": {
"description": "Grow a shared emphasis plate as saved words appear while reserving its final layout width.",
"type": "boolean"
},
"annotationColor": {
"type": "string"
},
"annotationStrokeWidth": {
"description": "Annotation stroke width in its 100×100 SVG coordinate system; default 4.",
"type": "number",
"minimum": 0.5,
"maximum": 12
},
"annotationTexture": {
"description": "Native annotation stroke finish; default clean.",
"type": "string",
"enum": [
"clean",
"pencil"
]
},
"maxWidthPercent": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 100
}
}
},
"layouts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"segmentIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"wordStartIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"wordEndIndex": {
"type": "integer",
"exclusiveMinimum": 0,
"maximum": 9007199254740991,
"description": "Exclusive word index in the saved caption segment."
},
"region": {
"type": "object",
"properties": {
"x": {
"type": "number",
"minimum": 0,
"maximum": 1
},
"y": {
"type": "number",
"minimum": 0,
"maximum": 1
},
"w": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1
},
"h": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1
}
},
"required": [
"x",
"y",
"w",
"h"
]
},
"scale": {
"type": "number",
"minimum": 0.25,
"maximum": 4
},
"rotation": {
"type": "number",
"minimum": -45,
"maximum": 45
},
"style": {
"type": "object",
"properties": {
"fontFamily": {
"type": "string",
"minLength": 1
},
"fontSize": {
"description": "Font size as % of composition height (1-15, default 5). NOT px.",
"type": "number",
"minimum": 1,
"maximum": 15
},
"fontWeight": {
"type": "integer",
"minimum": 100,
"maximum": 900
},
"color": {
"type": "string",
"minLength": 1
},
"highlightColor": {
"type": "string",
"minLength": 1
},
"backgroundColor": {
"type": "string"
},
"plate": {
"type": "string",
"enum": [
"glass",
"solid",
"none"
]
},
"textTransform": {
"type": "string",
"enum": [
"none",
"uppercase",
"capitalize"
]
},
"letterSpacing": {
"description": "Base caption glyph spacing in pixels.",
"type": "number",
"minimum": -5,
"maximum": 20
},
"wordGapEm": {
"description": "Gap between caption runs as a multiple of base font size; default 0.35.",
"type": "number",
"minimum": 0,
"maximum": 2
},
"lineGapEm": {
"description": "Gap between caption lines as a multiple of base font size; default 0.25.",
"type": "number",
"minimum": 0,
"maximum": 2
},
"emphasisColor": {
"type": "string"
},
"emphasisScale": {
"type": "number",
"exclusiveMinimum": 0
},
"emphasisFontFamily": {
"type": "string"
},
"emphasisFontWeight": {
"type": "integer",
"minimum": 100,
"maximum": 900
},
"emphasisTextTransform": {
"type": "string",
"enum": [
"none",
"uppercase",
"capitalize"
]
},
"emphasisLetterSpacing": {
"type": "number"
},
"emphasisFontStyle": {
"type": "string",
"enum": [
"normal",
"italic"
]
},
"emphasisPlate": {
"type": "boolean"
},
"emphasisPlateColor": {
"type": "string"
},
"emphasisPlateTextColor": {
"type": "string"
},
"emphasisPlateAltColor": {
"type": "string"
},
"emphasisPlateAltTextColor": {
"type": "string"
},
"emphasisPlateRadius": {
"type": "number",
"minimum": 0
},
"emphasisPlatePadX": {
"type": "number"
},
"emphasisPlatePadY": {
"type": "number"
},
"emphasisPlateReveal": {
"description": "Grow a shared emphasis plate as saved words appear while reserving its final layout width.",
"type": "boolean"
},
"annotationColor": {
"type": "string"
},
"annotationStrokeWidth": {
"description": "Annotation stroke width in its 100×100 SVG coordinate system; default 4.",
"type": "number",
"minimum": 0.5,
"maximum": 12
},
"annotationTexture": {
"description": "Native annotation stroke finish; default clean.",
"type": "string",
"enum": [
"clean",
"pencil"
]
},
"entrance": {
"type": "string",
"enum": [
"none",
"fade",
"word-pop",
"stagger-up"
]
},
"entranceMs": {
"type": "number",
"minimum": 0
},
"entranceStaggerMs": {
"type": "number",
"minimum": 0
},
"exitMs": {
"type": "number",
"minimum": 0
}
},
"additionalProperties": false
},
"holdThroughWordIndex": {
"description": "Inclusive saved-word index in this segment. The layout stays visible until that word ends.",
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"wordMarks": {
"type": "array",
"items": {
"type": "object",
"properties": {
"wordIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"emphasis": {
"type": "boolean"
},
"annotate": {
"anyOf": [
{
"type": "string",
"enum": [
"circle",
"underline"
]
},
{
"type": "null"
}
]
}
},
"required": [
"wordIndex"
],
"additionalProperties": false
}
},
"wordSignature": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
}
},
"required": [
"segmentIndex",
"wordStartIndex",
"wordEndIndex",
"region",
"wordSignature"
],
"additionalProperties": false
}
},
"zPlane": {
"type": "string",
"enum": [
"front",
"behind-subject"
]
}
},
"required": [
"source",
"from",
"segments"
]
},
{
"type": "object",
"properties": {
"source": {
"type": "string",
"const": "authored"
},
"segments": {
"type": "array",
"items": {
"type": "object",
"properties": {
"words": {
"type": "array",
"items": {
"type": "object",
"properties": {
"text": {
"type": "string",
"minLength": 1
},
"startMs": {
"type": "number",
"minimum": 0,
"description": "Word start on the composition timeline, in milliseconds."
},
"endMs": {
"type": "number",
"minimum": 0,
"description": "Word end on the composition timeline, in milliseconds."
},
"emphasis": {
"type": "boolean"
},
"annotate": {
"type": "string",
"enum": [
"circle",
"underline"
]
}
},
"required": [
"text",
"startMs",
"endMs"
]
}
}
},
"required": [
"words"
]
}
},
"style": {
"type": "object",
"properties": {
"fontFamily": {
"type": "string",
"minLength": 1
},
"fontSize": {
"description": "Font size as % of composition height (1-15, default 5). NOT px.",
"type": "number",
"minimum": 1,
"maximum": 15
},
"fontWeight": {
"type": "integer",
"minimum": 100,
"maximum": 900
},
"color": {
"type": "string",
"minLength": 1
},
"highlightColor": {
"type": "string",
"minLength": 1
},
"backgroundColor": {
"type": "string"
},
"plate": {
"type": "string",
"enum": [
"glass",
"solid",
"none"
]
},
"position": {
"type": "string",
"enum": [
"top",
"center",
"bottom"
]
},
"region": {
"description": "Optional caption layout box {x,y,w,h} in normalized output-frame coordinates. Overrides position; text starts at its top edge and wraps/pages within its width and height.",
"type": "object",
"properties": {
"x": {
"type": "number",
"minimum": 0,
"maximum": 1
},
"y": {
"type": "number",
"minimum": 0,
"maximum": 1
},
"w": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1
},
"h": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1
}
},
"required": [
"x",
"y",
"w",
"h"
]
},
"textTransform": {
"type": "string",
"enum": [
"none",
"uppercase",
"capitalize"
]
},
"letterSpacing": {
"description": "Base caption glyph spacing in pixels.",
"type": "number",
"minimum": -5,
"maximum": 20
},
"wordGapEm": {
"description": "Gap between caption runs as a multiple of base font size; default 0.35.",
"type": "number",
"minimum": 0,
"maximum": 2
},
"lineGapEm": {
"description": "Gap between caption lines as a multiple of base font size; default 0.25.",
"type": "number",
"minimum": 0,
"maximum": 2
},
"emphasisColor": {
"type": "string"
},
"emphasisGradient": {
"type": "string"
},
"emphasisScale": {
"type": "number",
"exclusiveMinimum": 0
},
"emphasisFontFamily": {
"type": "string"
},
"emphasisFontWeight": {
"type": "integer",
"minimum": 100,
"maximum": 900
},
"emphasisTextTransform": {
"type": "string",
"enum": [
"none",
"uppercase",
"capitalize"
]
},
"emphasisLetterSpacing": {
"type": "number"
},
"emphasisFontStyle": {
"type": "string",
"enum": [
"normal",
"italic"
]
},
"entrance": {
"type": "string",
"enum": [
"none",
"fade",
"word-pop",
"stagger-up"
]
},
"entranceMs": {
"type": "number",
"minimum": 0
},
"entranceStaggerMs": {
"type": "number",
"minimum": 0
},
"exitMs": {
"type": "number",
"minimum": 0
},
"emphasisPlate": {
"type": "boolean"
},
"emphasisPlateColor": {
"type": "string"
},
"emphasisPlateTextColor": {
"type": "string"
},
"emphasisPlateAltColor": {
"type": "string"
},
"emphasisPlateAltTextColor": {
"type": "string"
},
"emphasisPlateRadius": {
"type": "number",
"minimum": 0
},
"emphasisPlatePadX": {
"type": "number"
},
"emphasisPlatePadY": {
"type": "number"
},
"emphasisPlateReveal": {
"description": "Grow a shared emphasis plate as saved words appear while reserving its final layout width.",
"type": "boolean"
},
"annotationColor": {
"type": "string"
},
"annotationStrokeWidth": {
"description": "Annotation stroke width in its 100×100 SVG coordinate system; default 4.",
"type": "number",
"minimum": 0.5,
"maximum": 12
},
"annotationTexture": {
"description": "Native annotation stroke finish; default clean.",
"type": "string",
"enum": [
"clean",
"pencil"
]
},
"maxWidthPercent": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 100
}
}
},
"layouts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"segmentIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"wordStartIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"wordEndIndex": {
"type": "integer",
# --- truncated at 32 KB (92 KB total) ---
# Full source: https://artifacts.apis.io/cueframe-ai/json-schema/cueframe-ai-composition-schema.json
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