{ "openapi": "3.1.1", "info": { "title": "Weekly Meal Planner API", "version": "1.0.0", "summary": "Turn your pantry and its expiry dates into a 7-day dinner plan and a shopping list.", "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://weeklymealplanner.usefulweb.site" } ], "paths": { "/api/v1/calculate": { "post": { "operationId": "calculate", "summary": "Turn your pantry and its expiry dates into a 7-day dinner plan and a shopping list.", "description": "List what is in your fridge and cupboards (with quantities and best-before dates) and your preferences (vegetarian, vegan, pescatarian, maximum cooking time, ingredients to avoid). The planner picks one dinner per day from about 60 simple home-cooking recipes, using food that expires soonest first, and adds up a shopping list of everything still missing.\n\nMethodology:\n- Recipes come from a bundled editorial dataset of about 60 simple home-cooking dinners with ingredient quantities, cooking time and diet. Quantities are scaled linearly to the number of people.\n- Recipes are filtered by diet (vegan ⊂ vegetarian ⊂ pescatarian ⊂ everything), maximum cooking time and the ingredients to avoid.\n- Pantry names are matched to recipe ingredients after normalising plurals and common synonyms (e.g. eggs → egg, courgette → zucchini, spaghetti → pasta). kg and l are converted to g and ml.\n- Day by day, every remaining recipe gets a score: for each ingredient, the share covered by the pantry × an urgency weight (expires within 1 day: 6, 3 days: 4, 7 days: 2, later: 1, no date: 0.5) × 10, plus the share of that pantry item used up × urgency × 5, minus 3 for every ingredient that must be bought. The highest score wins (ties: dataset order); the pantry is then reduced by what the recipe uses.\n- Items past their best-before date on the cooking day are not used. A recipe is repeated only when every eligible recipe has already been planned.\n- The shopping list adds up all missing amounts per ingredient (pieces rounded up to whole pieces). Salt, pepper, cooking oil and water are assumed to be at home.", "tags": [ "home-travel" ], "x-mcp-tool": "weekly_meal_planner", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/WeeklyMealPlannerInput" }, "examples": { "example1": { "summary": "Use up spinach, eggs and chicken this week", "value": { "startDate": "2026-10-19", "days": 7, "servings": 2, "diet": "any", "maxMinutes": 45, "pantry": [ { "item": "Spinach", "quantity": 250, "unit": "g", "expires": "2026-10-20" }, { "item": "Eggs", "quantity": 6, "unit": "pcs", "expires": "2026-10-28" }, { "item": "Chicken breast", "quantity": 300, "unit": "g", "expires": "2026-10-21" }, { "item": "Rice", "quantity": 1, "unit": "kg" }, { "item": "Onions", "quantity": 4, "unit": "pcs" }, { "item": "Canned tomatoes", "quantity": 800, "unit": "g" }, { "item": "Feta", "quantity": 200, "unit": "g", "expires": "2026-10-23" }, { "item": "Pasta", "quantity": 500, "unit": "g" } ] } }, "example2": { "summary": "Vegan, 5 days, max 30 minutes", "value": { "startDate": "2026-11-02", "days": 5, "servings": 3, "diet": "vegan", "maxMinutes": 30, "pantry": [ { "item": "Chickpeas", "quantity": 800, "unit": "g" }, { "item": "Broccoli", "quantity": 400, "unit": "g", "expires": "2026-11-04" }, { "item": "Tofu", "quantity": 400, "unit": "g", "expires": "2026-11-05" }, { "item": "Rice", "quantity": 500, "unit": "g" } ], "exclude": [ "mushrooms" ] } } } } } }, "responses": { "200": { "description": "Calculation result envelope.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/WeeklyMealPlannerResult" } } } }, "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" } } } } } }, "WeeklyMealPlannerInput": { "type": "object", "additionalProperties": false, "properties": { "startDate": { "title": "First day", "description": "Default: today.", "type": "string", "format": "date" }, "days": { "title": "Number of days", "type": "integer", "minimum": 1, "maximum": 14, "default": 7 }, "servings": { "title": "People per meal", "type": "integer", "minimum": 1, "maximum": 12, "default": 2 }, "diet": { "title": "Diet", "type": "string", "enum": [ "any", "vegetarian", "vegan", "pescatarian" ], "default": "any" }, "maxMinutes": { "title": "Maximum cooking time", "type": "integer", "minimum": 10, "maximum": 240, "default": 45, "x-unit": "min" }, "pantry": { "title": "Pantry and fridge", "description": "Leave the quantity empty if you are not sure (counted as enough). Best-before dates make the planner use those items first.", "type": "array", "maxItems": 40, "items": { "type": "object", "additionalProperties": false, "properties": { "item": { "title": "Item", "type": "string", "maxLength": 60 }, "quantity": { "title": "Quantity", "type": "number", "minimum": 0, "maximum": 100000 }, "unit": { "title": "Unit", "type": "string", "enum": [ "g", "kg", "ml", "l", "pcs" ], "default": "pcs" }, "expires": { "title": "Best before", "type": "string", "format": "date" } }, "required": [ "item" ] } }, "exclude": { "title": "Avoid these ingredients", "description": "One per line, e.g. mushrooms or feta. Recipes containing them are skipped.", "type": "array", "items": { "type": "string" }, "maxItems": 30 } }, "required": [] }, "WeeklyMealPlannerResult": { "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", "days", "servings", "diet", "plan", "shoppingList", "pantryUse", "stats", "datasetVersion" ], "properties": { "startDate": { "type": "string", "format": "date" }, "days": { "type": "integer" }, "servings": { "type": "integer" }, "diet": { "type": "string" }, "plan": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "day", "date", "weekday", "recipeId", "recipe", "minutes", "diet", "usesFromPantry", "toBuy", "score" ], "properties": { "day": { "type": "integer" }, "date": { "type": "string" }, "weekday": { "type": "string" }, "recipeId": { "type": "string" }, "recipe": { "type": "string" }, "minutes": { "type": "integer" }, "diet": { "type": "string" }, "usesFromPantry": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "item", "amount", "unit", "daysToExpiry" ], "properties": { "item": { "type": "string" }, "amount": { "type": [ "number", "null" ] }, "unit": { "type": "string" }, "daysToExpiry": { "type": [ "integer", "null" ] } } } }, "toBuy": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "item", "amount", "unit" ], "properties": { "item": { "type": "string" }, "amount": { "type": "number" }, "unit": { "type": "string" } } } }, "score": { "type": "number" } } } }, "shoppingList": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "item", "amount", "unit", "forDays" ], "properties": { "item": { "type": "string" }, "amount": { "type": "number" }, "unit": { "type": "string" }, "forDays": { "type": "array", "items": { "type": "integer" } } } } }, "pantryUse": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "item", "unit", "start", "used", "left", "expires", "status" ], "properties": { "item": { "type": "string" }, "unit": { "type": "string" }, "start": { "type": [ "number", "null" ] }, "used": { "type": "number" }, "left": { "type": [ "number", "null" ] }, "expires": { "type": [ "string", "null" ] }, "status": { "type": "string", "enum": [ "used up", "partly used", "not used", "expires unused", "expired before start", "no recipe uses it" ] } } } }, "stats": { "type": "object", "additionalProperties": false, "required": [ "candidateRecipes", "expiringItems", "expiringItemsUsed", "shoppingItems", "repeats" ], "properties": { "candidateRecipes": { "type": "integer" }, "expiringItems": { "type": "integer" }, "expiringItemsUsed": { "type": "integer" }, "shoppingItems": { "type": "integer" }, "repeats": { "type": "integer" } } }, "datasetVersion": { "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" } } } } } } } }