{ "openapi": "3.1.1", "info": { "title": "Footprint to 3D Solid Extruder API", "version": "1.0.0", "summary": "Turn a simple footprint into a closed 3D solid with OBJ, STL and editable geometry.", "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://kerfwiseprofileextruder.usefulweb.site" } ], "paths": { "/api/v1/calculate": { "post": { "operationId": "calculate", "summary": "Turn a simple footprint into a closed 3D solid with OBJ, STL and editable geometry.", "description": "Enter a polygon footprint and extrusion height to make a closed 3D prism. Set its placement and rotation, measure surface and volume, and open the editable result in Kerfwise Form Studio.\n\nMethodology:\n- All geometry is in millimetres, with Z up. Accept one simple, non-self-intersecting footprint without holes, 3–64 vertices and at least 1 mm² area. Extrude vertically, then rotate around Z and translate.\n- Triangulate both caps and each side with consistent outward winding. Each separate prism is closed; intersecting prisms are not unioned. Surface = 2 × footprint area + perimeter × height; gross volume = footprint area × height.\n- Models contain at most 128 solids and eight saved camera views. Coordinates, heights and profiles are bounded. OBJ and ASCII STL use millimetres; STL does not embed a unit. These are concept models, separate from cabinet cut lists or machining instructions.\n\nConcept geometry only. Separate shells are not fused; gross quantities include overlaps. Not cabinet manufacturing output.", "tags": [ "apps" ], "x-mcp-tool": "kerfwise_profile_extruder", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/KerfwiseProfileExtruderInput" }, "examples": { "example1": { "summary": "An L-shaped extrusion", "value": { "points": "0,0\n1200,0\n1200,400\n500,400\n500,1000\n0,1000", "height": 600 } }, "example2": { "summary": "Raised rectangular plinth", "value": { "points": "0,0;800,0;800,500;0,500", "height": 180, "z": 100, "rotation": 30 } } } } } }, "responses": { "200": { "description": "Calculation result envelope.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/KerfwiseProfileExtruderResult" } } } }, "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" } } } } } }, "KerfwiseProfileExtruderInput": { "type": "object", "additionalProperties": false, "properties": { "points": { "title": "Footprint X,Y pairs in mm (one per line)", "type": "string", "maxLength": 12000, "default": "0,0\n1200,0\n1200,400\n500,400\n500,1000\n0,1000" }, "height": { "title": "Extrusion height (mm)", "type": "number", "minimum": 1, "maximum": 100000, "default": 600 }, "x": { "title": "Origin X (mm)", "type": "number", "minimum": -100000, "maximum": 100000, "default": 0 }, "y": { "title": "Origin Y (mm)", "type": "number", "minimum": -100000, "maximum": 100000, "default": 0 }, "z": { "title": "Base elevation (mm)", "type": "number", "minimum": -100000, "maximum": 100000, "default": 0 }, "rotation": { "title": "Rotation around Z (degrees)", "type": "number", "minimum": -36000, "maximum": 36000, "default": 0 }, "name": { "title": "Solid name", "type": "string", "maxLength": 80, "default": "L-shaped solid" }, "color": { "title": "Solid color (HEX)", "type": "string", "maxLength": 7, "default": "#b9c9b4" } }, "required": [] }, "KerfwiseProfileExtruderResult": { "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", "additionalProperties": false, "required": [ "project", "mesh", "surfaceM2", "volumeM3", "openInApp" ], "properties": { "project": { "type": "object", "additionalProperties": false, "required": [ "format", "version", "name", "units", "grid", "snap", "objects", "scenes" ], "properties": { "format": { "const": "kerfwise-form" }, "version": { "const": 1 }, "name": { "type": "string", "maxLength": 120 }, "units": { "enum": [ "mm", "in" ] }, "grid": { "type": "number", "minimum": 0.1, "maximum": 10000 }, "snap": { "type": "boolean" }, "objects": { "type": "array", "maxItems": 128, "items": { "type": "object", "additionalProperties": false, "required": [ "id", "name", "tag", "color", "profile", "height", "x", "y", "z", "rotation", "visible", "locked" ], "properties": { "id": { "type": "string", "pattern": "^[-a-zA-Z0-9_]{1,64}$" }, "name": { "type": "string", "maxLength": 80 }, "tag": { "type": "string", "maxLength": 40 }, "color": { "type": "string", "pattern": "^#[a-fA-F0-9]{6}$" }, "profile": { "type": "array", "minItems": 3, "maxItems": 64, "items": { "type": "array", "minItems": 2, "maxItems": 2, "items": { "type": "number", "minimum": -100000, "maximum": 100000 } } }, "height": { "type": "number", "minimum": 1, "maximum": 100000 }, "x": { "type": "number", "minimum": -100000, "maximum": 100000 }, "y": { "type": "number", "minimum": -100000, "maximum": 100000 }, "z": { "type": "number", "minimum": -100000, "maximum": 100000 }, "rotation": { "type": "number" }, "visible": { "type": "boolean" }, "locked": { "type": "boolean" } } } }, "scenes": { "type": "array", "maxItems": 8, "items": { "type": "object", "additionalProperties": false, "required": [ "name", "camera" ], "properties": { "name": { "type": "string", "maxLength": 60 }, "camera": { "type": "object", "additionalProperties": false, "required": [ "azimuth", "elevation", "span", "target" ], "properties": { "azimuth": { "type": "number" }, "elevation": { "type": "number", "minimum": 5, "maximum": 90 }, "span": { "type": "number", "minimum": 10, "maximum": 1000000 }, "target": { "type": "array", "minItems": 3, "maxItems": 3, "items": { "type": "number" } } } } } } } } }, "mesh": { "type": "object", "additionalProperties": false, "required": [ "vertices", "triangles" ], "properties": { "vertices": { "type": "array", "items": { "type": "array", "minItems": 3, "maxItems": 3, "items": { "type": "number" } } }, "triangles": { "type": "array", "items": { "type": "array", "minItems": 3, "maxItems": 3, "items": { "type": "integer" } } } } }, "surfaceM2": { "type": "number" }, "volumeM3": { "type": "number" }, "openInApp": { "type": [ "string", "null" ] } } }, "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" } } } } } } } }