{"ok":true,"tool":"Factorial Calculator","operation":"calculate-factorial","description":"Calculate the factorial of a non-negative integer.","method":"POST","endpoint":"/api/factorial-calculator","webUrl":"https://ultraquick.tools/tools/factorial-calculator","parameters":{"type":"object","properties":{"number":{"type":"integer","description":"Non-negative integer (max 170)"}},"required":["number"]},"response":{"type":"object","properties":{"result":{"type":"number"},"number":{"type":"integer"}}},"example":{"request":{"number":5},"response_shape":{"type":"object","properties":{"result":{"type":"number"},"number":{"type":"integer"}}}},"howToCall":"POST a JSON body to https://ultraquick.tools/api/factorial-calculator. Returns {\"ok\":true,\"result\":{...}} on success or {\"ok\":false,\"error\":\"...\"} on failure. No auth, CORS-enabled.","parametersSummary":"  number (integer, required) — Non-negative integer (max 170)","curlExample":"curl -X POST https://ultraquick.tools/api/factorial-calculator -H \"Content-Type: application/json\" -d '{\"number\":5}'"}