Capacities · Schema
ApiBlock
A block in a Capacities object (text, code, grid, entity embed, etc.). Nested via `blocks` or grid `columns`.
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JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/capacities-io/json-schema/capacities-io-api-block-schema.json",
"title": "ApiBlock",
"description": "A block in a Capacities object (text, code, grid, entity embed, etc.). Nested via `blocks` or grid `columns`.",
"x-generated": "2026-11-04",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/capacities-io-openapi.json#/components/schemas/ApiBlock",
"oneOf": [
{
"$ref": "#/$defs/ApiTextBlock"
},
{
"$ref": "#/$defs/ApiGroupBlock"
},
{
"$ref": "#/$defs/ApiGridBlock"
},
{
"$ref": "#/$defs/ApiCodeBlock"
},
{
"$ref": "#/$defs/ApiMathBlock"
},
{
"$ref": "#/$defs/ApiEntityBlock"
},
{
"$ref": "#/$defs/ApiHorizontalLineBlock"
},
{
"$ref": "#/$defs/ApiUnsupportedBlock"
}
],
"type": "object",
"$defs": {
"ApiBlock": {
"description": "A block in a Capacities object (text, code, grid, entity embed, etc.). Nested via `blocks` or grid `columns`.",
"oneOf": [
{
"$ref": "#/$defs/ApiTextBlock"
},
{
"$ref": "#/$defs/ApiGroupBlock"
},
{
"$ref": "#/$defs/ApiGridBlock"
},
{
"$ref": "#/$defs/ApiCodeBlock"
},
{
"$ref": "#/$defs/ApiMathBlock"
},
{
"$ref": "#/$defs/ApiEntityBlock"
},
{
"$ref": "#/$defs/ApiHorizontalLineBlock"
},
{
"$ref": "#/$defs/ApiUnsupportedBlock"
}
],
"type": "object"
},
"ApiCodeBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"CodeBlock"
]
},
"lang": {
"type": "string"
},
"text": {
"type": "string"
}
},
"required": [
"id",
"type",
"lang",
"text"
],
"additionalProperties": false,
"description": "Fenced code block with language and source text."
},
"ApiCodeTokenOutput": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"CodeToken"
]
},
"text": {
"type": "string"
}
},
"required": [
"type",
"text"
],
"additionalProperties": false,
"description": "Inline code span."
},
"ApiDatePayload": {
"type": "object",
"properties": {
"dateResolution": {
"type": "string",
"enum": [
"time",
"day"
],
"description": "`day` or `time`."
},
"start": {
"description": "ISO 8601 start.",
"type": [
"string",
"null"
]
},
"end": {
"description": "ISO 8601 end, if any.",
"type": [
"string",
"null"
]
}
},
"required": [
"dateResolution",
"start",
"end"
],
"additionalProperties": false,
"description": "Date value."
},
"ApiEntityBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"EntityBlock"
]
},
"entityId": {
"type": [
"string",
"null"
]
},
"date": {
"description": "Date value when the embed targets a UtilDate object.",
"allOf": [
{
"$ref": "#/$defs/ApiDatePayload"
}
]
}
},
"required": [
"id",
"type",
"entityId"
],
"additionalProperties": false,
"description": "Embedded Capacities object reference, or null when empty."
},
"ApiGridBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"GridBlock"
]
},
"columns": {
"type": "array",
"items": {
"type": "array",
"items": {
"$ref": "#/$defs/ApiBlock"
}
}
},
"dividers": {
"type": "array",
"items": {
"type": "number"
}
},
"gridLayout": {
"type": "string",
"enum": [
"columns",
"grid"
]
},
"colorTheme": {
"anyOf": [
{
"type": "string",
"enum": [
"text-gray",
"text-rose",
"text-pink",
"text-fuchsia",
"text-purple",
"text-violet",
"text-indigo",
"text-blue",
"text-sky",
"text-cyan",
"text-teal",
"text-emerald",
"text-green",
"text-lime",
"text-yellow",
"text-amber",
"text-orange",
"text-red"
]
},
{
"type": "string",
"enum": [
"bg-gray",
"bg-rose",
"bg-pink",
"bg-fuchsia",
"bg-purple",
"bg-violet",
"bg-indigo",
"bg-blue",
"bg-sky",
"bg-cyan",
"bg-teal",
"bg-emerald",
"bg-green",
"bg-lime",
"bg-yellow",
"bg-amber",
"bg-orange",
"bg-red"
]
}
]
}
},
"required": [
"id",
"type",
"columns",
"dividers"
],
"additionalProperties": false,
"description": "Multi-column layout; each column is an array of blocks."
},
"ApiGroupBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"GroupBlock"
]
},
"blocks": {
"type": "array",
"items": {
"$ref": "#/$defs/ApiBlock"
}
},
"list": {
"type": [
"object",
"null"
],
"properties": {
"type": {
"type": "string",
"enum": [
"bullet",
"alphabetical",
"numerical",
"roman"
]
}
},
"required": [
"type"
],
"additionalProperties": false
},
"todo": {
"type": "object",
"properties": {
"isDone": {
"type": "boolean"
}
},
"required": [
"isDone"
],
"additionalProperties": false
},
"toggle": {
"type": [
"object",
"null"
],
"properties": {
"isOpen": {
"type": "boolean"
}
},
"required": [
"isOpen"
],
"additionalProperties": false
},
"colorTheme": {
"anyOf": [
{
"type": "string",
"enum": [
"text-gray",
"text-rose",
"text-pink",
"text-fuchsia",
"text-purple",
"text-violet",
"text-indigo",
"text-blue",
"text-sky",
"text-cyan",
"text-teal",
"text-emerald",
"text-green",
"text-lime",
"text-yellow",
"text-amber",
"text-orange",
"text-red"
]
},
{
"type": "string",
"enum": [
"bg-gray",
"bg-rose",
"bg-pink",
"bg-fuchsia",
"bg-purple",
"bg-violet",
"bg-indigo",
"bg-blue",
"bg-sky",
"bg-cyan",
"bg-teal",
"bg-emerald",
"bg-green",
"bg-lime",
"bg-yellow",
"bg-amber",
"bg-orange",
"bg-red"
]
}
]
}
},
"required": [
"id",
"type",
"blocks"
],
"additionalProperties": false,
"description": "Container block that groups nested blocks (e.g. list or toggle group)."
},
"ApiHighlight": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"webhighlights",
"readwise",
"kindle-import",
"custom"
]
},
"url": {
"description": "Source URL associated with this highlight, if any.",
"type": "string"
},
"label": {
"description": "Display label; present for custom highlights.",
"type": "string"
},
"location": {
"description": "Location text shown below the block; present for custom highlights (max 20 characters).",
"type": "string",
"maxLength": 20
},
"color": {
"description": "Highlight color stored as annotation metadata.",
"type": "string",
"enum": [
"yellow",
"orange",
"green",
"red",
"purple",
"blue"
]
}
},
"required": [
"type"
],
"additionalProperties": false,
"description": "Highlight annotation attached to a text block."
},
"ApiHorizontalLineBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"HorizontalLineBlock"
]
}
},
"required": [
"id",
"type"
],
"additionalProperties": false,
"description": "Horizontal divider line."
},
"ApiLinkToken": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"LinkToken"
]
},
"text": {
"type": "string"
},
"url": {
"type": "string"
},
"entityId": {
"description": "Referenced object id when the link targets a Capacities object.",
"type": "string"
},
"date": {
"description": "Date value when the link targets a UtilDate object.",
"allOf": [
{
"$ref": "#/$defs/ApiDatePayload"
}
]
}
},
"required": [
"type",
"text"
],
"additionalProperties": false,
"description": "Hyperlink with display text and optional URL, object reference, or date."
},
"ApiMathBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"MathBlock"
]
},
"text": {
"type": "string"
},
"colorTheme": {
"anyOf": [
{
"type": "string",
"enum": [
"text-gray",
"text-rose",
"text-pink",
"text-fuchsia",
"text-purple",
"text-violet",
"text-indigo",
"text-blue",
"text-sky",
"text-cyan",
"text-teal",
"text-emerald",
"text-green",
"text-lime",
"text-yellow",
"text-amber",
"text-orange",
"text-red"
]
},
{
"type": "string",
"enum": [
"bg-gray",
"bg-rose",
"bg-pink",
"bg-fuchsia",
"bg-purple",
"bg-violet",
"bg-indigo",
"bg-blue",
"bg-sky",
"bg-cyan",
"bg-teal",
"bg-emerald",
"bg-green",
"bg-lime",
"bg-yellow",
"bg-amber",
"bg-orange",
"bg-red"
]
}
]
}
},
"required": [
"id",
"type",
"text"
],
"additionalProperties": false,
"description": "Display math block (LaTeX)."
},
"ApiMathTokenOutput": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"MathToken"
]
},
"text": {
"type": "string"
}
},
"required": [
"type",
"text"
],
"additionalProperties": false,
"description": "Inline math (LaTeX)."
},
"ApiTextBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"TextBlock"
]
},
"tokens": {
"type": "array",
"items": {
"$ref": "#/$defs/ApiToken"
}
},
"blocks": {
"type": "array",
"items": {
"$ref": "#/$defs/ApiBlock"
}
},
"hierarchy": {
"type": "object",
"properties": {
"key": {
"type": "string"
},
"val": {
"type": "number"
}
},
"required": [
"key",
"val"
],
"additionalProperties": false
},
"list": {
"type": [
"object",
"null"
],
"properties": {
"type": {
"type": "string",
"enum": [
"bullet",
"alphabetical",
"numerical",
"roman"
]
}
},
"required": [
"type"
],
"additionalProperties": false
},
"todo": {
"type": "object",
"properties": {
"isDone": {
"type": "boolean"
}
},
"required": [
"isDone"
],
"additionalProperties": false
},
"toggle": {
"type": [
"object",
"null"
],
"properties": {
"isOpen": {
"type": "boolean"
}
},
"required": [
"isOpen"
],
"additionalProperties": false
},
"quote": {
"type": "object",
"properties": {
"layout": {
"type": "string",
"enum": [
"normal",
"standout"
]
}
},
"required": [
"layout"
],
"additionalProperties": false
},
"colorTheme": {
"anyOf": [
{
"type": "string",
"enum": [
"text-gray",
"text-rose",
"text-pink",
"text-fuchsia",
"text-purple",
"text-violet",
"text-indigo",
"text-blue",
"text-sky",
"text-cyan",
"text-teal",
"text-emerald",
"text-green",
"text-lime",
"text-yellow",
"text-amber",
"text-orange",
"text-red"
]
},
{
"type": "string",
"enum": [
"bg-gray",
"bg-rose",
"bg-pink",
"bg-fuchsia",
"bg-purple",
"bg-violet",
"bg-indigo",
"bg-blue",
"bg-sky",
"bg-cyan",
"bg-teal",
"bg-emerald",
"bg-green",
"bg-lime",
"bg-yellow",
"bg-amber",
"bg-orange",
"bg-red"
]
}
]
},
"highlight": {
"description": "Highlight annotation attached to this block, if any.",
"allOf": [
{
"$ref": "#/$defs/ApiHighlight"
}
]
}
},
"required": [
"id",
"type",
"tokens",
"blocks",
"hierarchy"
],
"additionalProperties": false,
"description": "Paragraph or heading with inline tokens and optional nested blocks."
},
"ApiTextTokenOutput": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"TextToken"
]
},
"text": {
"type": "string"
},
"style": {
"type": "object",
"properties": {
"bold": {
"type": "boolean"
},
"italic": {
"type": "boolean"
},
"strikethrough": {
"type": "boolean"
},
"underline": {
"type": "boolean"
}
},
"additionalProperties": false
},
"color": {
"anyOf": [
{
"type": "string",
"enum": [
"text-gray",
"text-rose",
"text-pink",
"text-fuchsia",
"text-purple",
"text-violet",
"text-indigo",
"text-blue",
"text-sky",
"text-cyan",
"text-teal",
"text-emerald",
"text-green",
"text-lime",
"text-yellow",
"text-amber",
"text-orange",
"text-red"
]
},
{
"type": "string",
"enum": [
"bg-gray",
"bg-rose",
"bg-pink",
"bg-fuchsia",
"bg-purple",
"bg-violet",
"bg-indigo",
"bg-blue",
"bg-sky",
"bg-cyan",
"bg-teal",
"bg-emerald",
"bg-green",
"bg-lime",
"bg-yellow",
"bg-amber",
"bg-orange",
"bg-red"
]
}
]
}
},
"required": [
"type",
"text",
"style"
],
"additionalProperties": false,
"description": "Plain text with optional bold, italic, strikethrough, underline, and color."
},
"ApiToken": {
"oneOf": [
{
"$ref": "#/$defs/ApiTextTokenOutput"
},
{
"$ref": "#/$defs/ApiLinkToken"
},
{
"$ref": "#/$defs/ApiMathTokenOutput"
},
{
"$ref": "#/$defs/ApiCodeTokenOutput"
}
],
"description": "Inline token inside a TextBlock.",
"type": "object"
},
"ApiUnsupportedBlock": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"type": {
"type": "string",
"enum": [
"unsupported"
]
},
"blockType": {
"type": "string"
}
},
"required": [
"id",
"type",
"blockType"
],
"additionalProperties": false,
"description": "Placeholder for block types not available in the API."
}
}
}
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