{ "openapi": "3.1.1", "info": { "title": "Household Maintenance Calendar API", "version": "1.0.0", "summary": "A dated home maintenance schedule for your appliances and features, as a calendar 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://householdmaintenancecalendar.usefulweb.site" } ], "paths": { "/api/v1/calculate": { "post": { "operationId": "calculate", "summary": "A dated home maintenance schedule for your appliances and features, as a calendar file.", "description": "Tick the features of your home — heating, alarms, appliances, gutters, garden, pool, car — and get a dated maintenance plan for up to 24 months, grouped by month, with safety intervals backed by official guidance and a recurring-event calendar file to import.\n\nMethodology:\n- Tasks come from an editorial catalog of generic maintenance best practice; a task is included if it applies to every home, to your home type, or to a feature you ticked.\n- Interval tasks (every N months): the first date is the start date for monthly tasks, and start date + (catalog position × 3 mod 28) days for longer intervals so that work is spread out; then every N months. A first date on the 29th–31st moves to the 28th of the following month so the calendar recurrence is valid in every month.\n- Day-interval tasks (e.g. weekly pool checks) repeat every N days from the start date.\n- Seasonal tasks fall on the 1st of their months (northern hemisphere months; +6 months in the southern hemisphere).\n- Only dates from the start date to the day before start + N months are listed. The .ics file has one all-day recurring VEVENT per task (RRULE FREQ=MONTHLY/DAILY/YEARLY with UNTIL), CRLF line endings, folded lines and UIDs derived from the inputs.\n- Safety intervals (smoke and CO alarm tests and batteries, chimney inspection, septic inspection, tyre pressure) follow the cited official guidance; all other intervals are editorial — your manufacturer’s manual takes precedence.\n\nGeneric reminders, not a substitute for your appliance manuals, local regulations or professional inspections. Do not climb on roofs; hire professionals for gas, electrical and roof work.", "tags": [ "home-travel" ], "x-mcp-tool": "household_maintenance_calendar", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/HouseholdMaintenanceCalendarInput" }, "examples": { "example1": { "summary": "Apartment, 12 months", "value": { "homeType": "apartment", "features": [ "smoke-detectors", "co-detectors", "gas-heating", "dishwasher", "washing-machine", "fridge" ], "hemisphere": "north", "startDate": "2026-11-01", "months": 12 } }, "example2": { "summary": "House with garden, pool and car, 24 months", "value": { "homeType": "house", "features": [ "smoke-detectors", "heat-pump", "water-heater", "dryer", "gutters", "chimney", "garden", "pool", "septic", "solar", "car" ], "hemisphere": "north", "startDate": "2026-10-15", "months": 24 } } } } } }, "responses": { "200": { "description": "Calculation result envelope.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/HouseholdMaintenanceCalendarResult" } } } }, "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" } } } } } }, "HouseholdMaintenanceCalendarInput": { "type": "object", "additionalProperties": false, "properties": { "homeType": { "title": "Home type", "type": "string", "enum": [ "apartment", "house", "townhouse" ], "default": "apartment" }, "features": { "title": "Your home has", "type": "array", "items": { "type": "string", "enum": [ "gas-heating", "heat-pump", "ac", "smoke-detectors", "co-detectors", "water-heater", "dishwasher", "washing-machine", "dryer", "fridge", "gutters", "chimney", "garden", "pool", "septic", "solar", "car" ] }, "default": [ "smoke-detectors", "dishwasher", "washing-machine", "fridge" ] }, "hemisphere": { "title": "Hemisphere (for seasons)", "type": "string", "enum": [ "north", "south" ], "default": "north" }, "startDate": { "title": "Start date", "type": "string", "format": "date" }, "months": { "title": "Months to plan", "type": "integer", "minimum": 1, "maximum": 24, "default": 12 } }, "required": [ "startDate" ] }, "HouseholdMaintenanceCalendarResult": { "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": [ "startDate", "endDate", "taskCount", "occurrenceCount", "tasks", "occurrences" ], "properties": { "startDate": { "type": "string", "format": "date" }, "endDate": { "type": "string", "format": "date" }, "taskCount": { "type": "integer", "minimum": 0 }, "occurrenceCount": { "type": "integer", "minimum": 0 }, "tasks": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "id", "title", "category", "interval", "rrule" ], "properties": { "id": { "type": "string" }, "title": { "type": "string" }, "category": { "type": "string" }, "interval": { "type": "string" }, "rrule": { "type": "string" }, "source": { "type": "string", "format": "uri" }, "note": { "type": "string" } } } }, "occurrences": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "date", "taskId", "title", "category" ], "properties": { "date": { "type": "string", "format": "date" }, "taskId": { "type": "string" }, "title": { "type": "string" }, "category": { "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" } } } } } } } }