Compose printable SVG label sheets
Fit 1–100 short ASCII labels onto supplied integer-micrometre stock, skip first-page used slots and return deterministic row-major placements and up to 20 inert printable SVG sheets.
structured · Operation ID: label-sheet-compose
Choose this operation when
- Explicit micrometre page, margin, gap and cell dimensions with one short line per label
Outside this profile
- Printer control, barcode generation, postal verification, rotation, optimal nesting, supplied fonts or automatic text fitting
- Rendering, printing, writing files, uploading, publishing, or changing remote state
- Supplying custom SVG, HTML, CSS, fonts, images, links, scripts or external resources
- Guaranteeing font appearance, printer alignment, source authenticity or accessibility compliance
Exact release references
Static JSON contract · Markdown reference · Fixed example response
Complete input schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"pageWidthUm": {
"type": "integer",
"minimum": 10000,
"maximum": 1000000
},
"pageHeightUm": {
"type": "integer",
"minimum": 10000,
"maximum": 1000000
},
"marginXUm": {
"type": "integer",
"minimum": 50,
"maximum": 1000000
},
"marginYUm": {
"type": "integer",
"minimum": 50,
"maximum": 1000000
},
"labelWidthUm": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
},
"labelHeightUm": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
},
"gapXUm": {
"type": "integer",
"minimum": 0,
"maximum": 1000000
},
"gapYUm": {
"type": "integer",
"minimum": 0,
"maximum": 1000000
},
"fontSizeUm": {
"type": "integer",
"minimum": 1000,
"maximum": 10000
},
"startSlot": {
"type": "integer",
"minimum": 0,
"maximum": 1000000
},
"labels": {
"minItems": 1,
"maxItems": 100,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 16,
"pattern": "^[\\x20-\\x7e]+$"
}
}
},
"required": [
"pageWidthUm",
"pageHeightUm",
"marginXUm",
"marginYUm",
"labelWidthUm",
"labelHeightUm",
"gapXUm",
"gapYUm",
"fontSizeUm",
"startSlot",
"labels"
],
"additionalProperties": false
}
Complete output-envelope schema
{
"type": "object",
"required": [
"operation",
"version",
"result",
"provenance"
],
"properties": {
"operation": {
"const": "label-sheet-compose",
"type": "string"
},
"version": {
"const": "0.29.0",
"type": "string"
},
"result": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"columns": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
},
"rows": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
},
"capacityPerPage": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
},
"pageCount": {
"type": "integer",
"minimum": 1,
"maximum": 20
},
"placements": {
"minItems": 1,
"maxItems": 100,
"type": "array",
"items": {
"type": "object",
"properties": {
"inputIndex": {
"type": "integer",
"minimum": 0,
"maximum": 99
},
"pageIndex": {
"type": "integer",
"minimum": 0,
"maximum": 19
},
"row": {
"type": "integer",
"minimum": 0,
"maximum": 1000000
},
"column": {
"type": "integer",
"minimum": 0,
"maximum": 1000000
},
"xUm": {
"type": "integer",
"minimum": 50,
"maximum": 1000000
},
"yUm": {
"type": "integer",
"minimum": 50,
"maximum": 1000000
},
"widthUm": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
},
"heightUm": {
"type": "integer",
"minimum": 1,
"maximum": 1000000
}
},
"required": [
"inputIndex",
"pageIndex",
"row",
"column",
"xUm",
"yUm",
"widthUm",
"heightUm"
],
"additionalProperties": false
}
},
"pages": {
"minItems": 1,
"maxItems": 20,
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"columns",
"rows",
"capacityPerPage",
"pageCount",
"placements",
"pages"
],
"additionalProperties": false
},
"provenance": {
"type": "object",
"required": [
"inputSha256",
"outputSha256",
"deterministic",
"externalRequests"
],
"properties": {
"inputSha256": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"outputSha256": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"deterministic": {
"const": true
},
"externalRequests": {
"const": 0
}
}
}
},
"additionalProperties": false
}
Fixed example
One accepted fixed example, not a custom-input trial. No operation runs when this static page is requested.
Example input
{
"pageWidthUm": 100000,
"pageHeightUm": 60000,
"marginXUm": 5000,
"marginYUm": 5000,
"labelWidthUm": 40000,
"labelHeightUm": 20000,
"gapXUm": 10000,
"gapYUm": 10000,
"fontSizeUm": 3000,
"startSlot": 0,
"labels": [
"A-01",
"B-02"
]
}
Example response
{
"operation": "label-sheet-compose",
"version": "0.29.0",
"result": {
"columns": 2,
"rows": 2,
"capacityPerPage": 4,
"pageCount": 1,
"placements": [
{
"inputIndex": 0,
"pageIndex": 0,
"row": 0,
"column": 0,
"xUm": 5000,
"yUm": 5000,
"widthUm": 40000,
"heightUm": 20000
},
{
"inputIndex": 1,
"pageIndex": 0,
"row": 0,
"column": 1,
"xUm": 55000,
"yUm": 5000,
"widthUm": 40000,
"heightUm": 20000
}
],
"pages": [
"<svg xmlns=\"http://www.w3.org/2000/svg\" xml:space=\"preserve\" width=\"100mm\" height=\"60mm\" viewBox=\"0 0 100000 60000\" role=\"img\"><title>Label sheet 1 of 1</title><g fill=\"none\" stroke=\"#000\" stroke-width=\"100\"><rect x=\"5000\" y=\"5000\" width=\"40000\" height=\"20000\"/><rect x=\"55000\" y=\"5000\" width=\"40000\" height=\"20000\"/></g><g fill=\"#000\" font-family=\"monospace\" font-size=\"3000\"><text x=\"7000\" y=\"10000\" textLength=\"7200\" lengthAdjust=\"spacingAndGlyphs\">A-01</text><text x=\"57000\" y=\"10000\" textLength=\"7200\" lengthAdjust=\"spacingAndGlyphs\">B-02</text></g></svg>\n"
]
},
"provenance": {
"inputSha256": "d99f5928e42fe224c3552c626fdcc2e8132b68bc3aee914dac3ce1aea312c353",
"outputSha256": "2120862f692df28a7678a5660b924ae72e56404af7aa1b2d4f823ed7cc929da7",
"deterministic": true,
"externalRequests": 0
}
}
Bounds and precision
JavaScript IEEE-754 numbers; use strings for large integer IDs/exact decimals where the schema accepts strings. No lossless numeric parsing.
{
"global": {
"requestBytes": 131072,
"responseBytes": 524288,
"jsonDepth": 32,
"jsonNodes": 20000,
"requestsPerMinute": 60,
"paidAttemptsPerMinute": 20,
"idempotencyHours": 24
},
"operation": {
"inputBytes": 100000,
"outputBytes": 400000,
"jsonNodes": 12000,
"depth": 20,
"profile": "micrometre-grid-labels-v1",
"labels": 100,
"labelAsciiCharacters": 16,
"pages": 20,
"pageDimensionUm": 1000000,
"minimumMarginUm": 50,
"outlineStrokeUm": 100,
"paddingUm": 2000,
"descentReserve": "ceil(fontSizeUm / 4)",
"maximumProjectedResultBytes": 111000
}
}
Complete schemas, descriptions and cross-field validation may impose additional limits.
Proposed price and protocol definitions
{
"unit": "one successful operation call",
"proposedNominalUsd": "0.005",
"sixDecimalTokenBaseUnits": "5000",
"subscription": false,
"includesPayerWalletOrNetworkFees": false,
"liveQuoteVerified": false,
"condition": "Actual SDK challenge is authoritative only within the caller's explicit authorization; configured six-decimal token peg is an operator assertion, not a conversion guarantee."
}
Protocol definitions: x402, mpp. MPP uses Tempo charge. Paid MCP execution is unsupported. All runtime readiness is not evaluated in this build.
API path templates, not endpoints on this documentation host
{
"x402": "/v1/x402/label-sheet-compose",
"mpp": "/v1/mpp/label-sheet-compose"
}
Required headers
{
"Content-Type": "application/json",
"Idempotency-Key": "random 16–128 character operation identifier"
}
Actual SDK challenge amount, asset, network, recipient and wallet costs must pass independent authorization. Preserve identical key, body, protocol and credential on retries; on PAYMENT_UNCERTAIN stop and reconcile.
Execution profile and provider conditions
{
"deterministic": true,
"externalRequests": 0,
"maxExternalRequests": 0,
"resultSnapshotPersisted": false,
"fixedExampleIsIllustrativeSnapshot": false,
"requiresPayment": true,
"supportsMcpExecution": false
}
Deterministic supplied-input operation with no external requests or stored request/result bodies. Payment infrastructure retains payment metadata and hashes.
Failure handling
- HTTP 400: Malformed JSON, missing/invalid idempotency key, or payment identifier mismatch Correct the request before payment
- HTTP 402: Payment challenge or rejected payment Use official protocol SDK; inspect payment outcome before another payment
- HTTP 409: Idempotency conflict, duplicate proof, or PAYMENT_UNCERTAIN Keep original key, body, and proof; reconcile uncertainty with operator; never blindly repay
- HTTP 413: Input or generated output too large Reduce input; no payment attempted for validation failure
- HTTP 415: Unsupported media type or compression Send uncompressed application/json
- HTTP 422: Schema or service-specific semantic validation failure Correct input using returned error code; no payment attempted
- HTTP 429: Request/payment-attempt rate exceeded Wait for rate limit window; preserve existing payment identity
- HTTP 503: Payment configuration/provider/state unavailable, or live DNS preparation failed before settlement Check readiness; DNS preparation failures may retry the identical key/body/credential only; uncertainty requires reconciliation
Declared requirements
Before any paid call, refresh the live operation contract and POST the complete bounded budgeted plan to the separate API's /preflight. Unknown requirements block selection; compatible preflight is not permission to spend.