{"openapi":"3.0.3","info":{"title":"Gnist Context — Open Food Facts","description":"Food product database — barcode lookup, nutrition facts, Nutri-Score, ingredients.\n\n- **MCP endpoint:** `https://context.gnist.ai/mcp/openfoodfacts/`\n- **Toolkit page:** `/toolkits/openfoodfacts`\n- **Full API spec:** `/api/openapi.json`\n- **Get an API key:** `/signup`","version":"1.0.0","contact":{"name":"GnistAI","url":"https://gnist.ai"}},"servers":[{"url":"https://context.gnist.ai","description":"Production"}],"paths":{"/rest/openfoodfacts/get_food_product":{"post":{"tags":["Food & Drink"],"summary":"get_food_product","description":"Look up a food product by barcode (EAN-13 or UPC-A).\n\nReturns product name, brand, Nutri-Score, NOVA group, ingredients, and\nfull nutrition facts per 100g.\n\nArgs:\n    barcode: Product barcode (e.g. \"3017620422003\" for Nutella).","operationId":"openfoodfacts_get_food_product","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"additionalProperties":false,"properties":{"barcode":{"type":"string"}},"required":["barcode"],"type":"object"}}}}}},"/rest/openfoodfacts/search_food_products":{"post":{"tags":["Food & Drink"],"summary":"search_food_products","description":"Search the Open Food Facts database for food products by name.\n\nReturns matching products with barcode, name, brand, and Nutri-Score.\n\nArgs:\n    query: Product name search (e.g. \"nutella\", \"oat milk\", \"granola\").\n    limit: Maximum number of results (1-50, default 10).","operationId":"openfoodfacts_search_food_products","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"additionalProperties":false,"properties":{"query":{"type":"string"},"limit":{"default":10,"type":"integer"}},"required":["query"],"type":"object"}}}}}},"/rest/openfoodfacts/report_feedback":{"post":{"tags":["Food & Drink"],"summary":"report_feedback","description":"Report a bug, feature request, or general feedback for this data source.\n\nUse this when something doesn't work as expected, when you'd like\na new feature, or when you have suggestions for improvement.\n\nArgs:\n    feedback: Describe the issue or suggestion.\n    feedback_type: One of 'bug', 'feature_request', or 'general'.","operationId":"openfoodfacts_report_feedback","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"additionalProperties":false,"properties":{"feedback":{"type":"string"},"feedback_type":{"default":"general","type":"string"}},"required":["feedback"],"type":"object"}}}}}}},"tags":[{"name":"Food & Drink","description":"Data sources: Food & Drink"}],"components":{"securitySchemes":{"ApiKeyHeader":{"type":"apiKey","in":"header","name":"gnist-api-key","description":"API key passed via request header."},"ApiKeyQuery":{"type":"apiKey","in":"query","name":"gnist_api_key","description":"API key passed via query parameter."}}}}