{ "openapi": "3.1.1", "info": { "title": "Threadsmith Design Stats API", "version": "1.0.0", "summary": "Stitch count, colours, trims, thread, bobbin, sewing time and density of a DST/EXP file.", "description": "Every endpoint performs the same calculation as the human page and returns inputs, result, units, assumptions, sources, warnings and computedAt. MCP endpoint: /mcp." }, "servers": [ { "url": "https://threadsmithdesignstats.usefulweb.site" } ], "paths": { "/api/v1/calculate": { "post": { "operationId": "calculate", "summary": "Stitch count, colours, trims, thread, bobbin, sewing time and density of a DST/EXP file.", "description": "Reads a Tajima DST or Melco EXP file (or a stitch list) and reports stitches, jumps, trims, colour changes, size and hoop fit, thread length per colour with a bobbin estimate, sewing time at your machine speed and a thread-density check with the densest spots, plus a thread-look preview.\n\nMethodology:\n- DST records are decoded from balanced ternary (bits for ±1, ±3, ±9, ±27, ±81 per axis); runs of three or more jumps count as one trim, as on most machines. EXP bytes are two’s-complement 0.1 mm steps with 0x80 control codes.\n- Sewn length = sum of stitch lengths per colour; top thread = sewn length + 0.8 mm take-up per penetration + 5 % waste; bobbin ≈ 33 % of sewn length.\n- Sewing time = stitches ÷ speed + trims × trim time + colour changes × change time + 0.15 s per jump.\n- Density: each stitch deposits length × 0.4 mm thread width into the 1 mm cells it crosses; values are thread layers (1 ≈ fully covered once).\n\nThread and time figures are planning estimates; real consumption depends on tension, fabric, stabiliser and machine.", "tags": [ "apps" ], "x-mcp-tool": "threadsmith_design_stats", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/ThreadsmithDesignStatsInput" }, "examples": { "example1": { "summary": "Leaf template as DST, 850 stitches/min", "value": { "file": { "filename": "leaf.dst", "contentBase64": 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}, "spm": 850, "colors": [ "#0b7a4b", "#1f5c3f", "#6d4a33" ], "hoop": "100x100" } }, "example2": { "summary": "Hand-written stitch list with a jump", "value": { "stitches": "[[0,0],[5,0],[10,0],[10,5],[10,10],[40,10,\"jump\"],[40,10],[45,12],[50,10]]", "spm": 600 } } } } } }, "responses": { "200": { "description": "Calculation result envelope.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/ThreadsmithDesignStatsResult" } } } }, "400": { "description": "Malformed JSON body.", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } }, "422": { "description": "Invalid input (see errors[]).", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } }, "429": { "description": "Rate limit exceeded (see Retry-After).", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } } } } }, "/api/v1/tool": { "get": { "operationId": "getToolDefinition", "summary": "Inputs, output schema and examples for this tool", "responses": { "200": { "description": "Tool definition.", "content": { "application/json": { "schema": { "type": "object" } } } } } } } }, "components": { "schemas": { "Problem": { "type": "object", "description": "RFC 9457 problem details. 422 responses include per-field `errors`.", "required": [ "type", "title", "status", "detail" ], "properties": { "type": { "type": "string" }, "title": { "type": "string" }, "status": { "type": "integer" }, "detail": { "type": "string" }, "code": { "type": "string" }, "errors": { "type": "array", "items": { "type": "object", "required": [ "field", "message" ], "properties": { "field": { "type": "string" }, "message": { "type": "string" } } } } } }, "ThreadsmithDesignStatsInput": { "type": "object", "additionalProperties": false, "properties": { "file": { "title": "Embroidery file", "description": "Tajima .dst or Melco .exp. Upload as {filename, contentType?, contentBase64}. Max 6144 KiB. Accepts .dst,.exp.", "type": "object", "additionalProperties": false, "required": [ "filename", "contentBase64" ], "properties": { "filename": { "type": "string" }, "contentType": { "type": "string" }, "contentBase64": { "type": "string" } } }, "stitches": { "title": "Or: stitch list (JSON)", "description": "Same format as threadsmith-stitch-file.", "type": "string", "maxLength": 8000000 }, "colors": { "title": "Thread colours in sewing order", "description": "Optional #rrggbb per colour block (DST/EXP files store no colours).", "type": "array", "items": { "type": "string" }, "maxItems": 60 }, "spm": { "title": "Machine speed", "type": "integer", "minimum": 100, "maximum": 1500, "default": 700, "x-unit": "stitches/min" }, "trimSeconds": { "title": "Time per trim", "type": "number", "minimum": 0, "maximum": 60, "default": 4, "x-unit": "s" }, "colorSeconds": { "title": "Time per colour change", "type": "number", "minimum": 0, "maximum": 600, "default": 20, "x-unit": "s" }, "hoop": { "title": "Hoop", "type": "string", "enum": [ "50x50", "100x100", "130x180", "150x150", "160x260", "200x200", "200x300", "240x150", "360x200" ], "default": "130x180" }, "densityThreshold": { "title": "Too-dense limit", "description": "Thread coverage per 1 mm cell above which the design is flagged (2.6 ≈ underlay + top + some overlap).", "type": "number", "minimum": 1, "maximum": 6, "default": 2.6, "x-unit": "thread layers" } }, "required": [] }, "ThreadsmithDesignStatsResult": { "type": "object", "additionalProperties": false, "required": [ "schemaVersion", "tool", "computedAt", "inputs", "summary", "result", "units", "assumptions", "sources", "warnings", "presentation", "links" ], "properties": { "schemaVersion": { "type": "string", "const": "1.0" }, "tool": { "type": "object", "additionalProperties": false, "required": [ "id", "name", "version" ], "properties": { "id": { "type": "string" }, "name": { "type": "string" }, "version": { "type": "string" } } }, "computedAt": { "type": "string", "format": "date-time" }, "inputs": { "type": "object", "description": "Normalised inputs actually used, including applied defaults." }, "summary": { "type": "string" }, "result": { "type": "object", "required": [ "format", "stitches", "jumps", "trims", "colorChanges", "widthMm", "heightMm", "sewingMinutes", "sewingTime", "topThreadM", "bobbinThreadM", "longestStitchMm", "hoop", "colors", "density", "hotspots", "warnings" ], "properties": { "format": { "type": "string" }, "label": { "type": "string" }, "header": { "type": "object" }, "stitches": { "type": "integer" }, "jumps": { "type": "integer" }, "trims": { "type": "integer" }, "colorChanges": { "type": "integer" }, "widthMm": { "type": "number" }, "heightMm": { "type": "number" }, "sewingMinutes": { "type": "number" }, "sewingTime": { "type": "string" }, "topThreadM": { "type": "number" }, "bobbinThreadM": { "type": "number" }, "longestStitchMm": { "type": "number" }, "hoop": { "type": "object", "properties": { "id": { "type": "string" }, "fits": { "type": "boolean" }, "overflowMm": { "type": "number" } }, "required": [ "id", "fits", "overflowMm" ] }, "colors": { "type": "array", "items": { "type": "object", "properties": { "name": { "type": "string" }, "hex": { "type": "string" }, "stitches": { "type": "integer" }, "topThreadM": { "type": "number" } }, "required": [ "name", "hex", "stitches", "topThreadM" ] } }, "density": { "type": "object", "properties": { "maxLayers": { "type": "number" }, "areaOverMm2": { "type": "number" }, "threshold": { "type": "number" } }, "required": [ "maxLayers", "areaOverMm2", "threshold" ] }, "hotspots": { "type": "array", "items": { "type": "object", "properties": { "x": { "type": "number" }, "y": { "type": "number" }, "layers": { "type": "number" } } } }, "warnings": { "type": "array", "items": { "type": "string" } } } }, "units": { "type": "object", "additionalProperties": { "type": "string" } }, "assumptions": { "type": "array", "items": { "type": "string" } }, "sources": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "title" ], "properties": { "title": { "type": "string" }, "url": { "type": "string" }, "publisher": { "type": "string" }, "retrievedAt": { "type": "string" }, "note": { "type": "string" } } } }, "warnings": { "type": "array", "items": { "type": "string" } }, "presentation": { "type": "array", "items": { "type": "object" }, "description": "Display blocks used by the human page (same data)." }, "links": { "type": "object", "additionalProperties": false, "required": [ "human", "api", "openapi", "methodology" ], "properties": { "human": { "type": "string", "format": "uri" }, "api": { "type": "string", "format": "uri" }, "openapi": { "type": "string", "format": "uri" }, "methodology": { "type": "string", "format": "uri" } } } } } } } }