# Aligner Calculator > A multilingual aligner tray change date calculator for dentists, orthodontists, assistants, and patients. Base URL: https://calculator.glamour.dental ## Primary Pages - [Traditional Chinese calculator](https://calculator.glamour.dental/) - [English calculator](https://calculator.glamour.dental/en) - [Simplified Chinese calculator](https://calculator.glamour.dental/cn) - [Support](https://calculator.glamour.dental/support) - [Terms](https://calculator.glamour.dental/term) - [Privacy policy (Traditional Chinese)](https://calculator.glamour.dental/privacy) - [Privacy policy (English)](https://calculator.glamour.dental/privacy/en) ## Agent Interfaces - WebMCP manifest: https://calculator.glamour.dental/.well-known/webmcp.json - MCP manifest alias: https://calculator.glamour.dental/.well-known/mcp.json - OpenAPI schema: https://calculator.glamour.dental/openapi.json - API endpoint: https://calculator.glamour.dental/api/aligner ## Available Tool ### aligner_schedule_calculator Calculates future aligner tray change dates from the current tray, next tray range, days per tray, and the current tray start date. Input parameters: - `currentTray`: positive integer. - `nextTrayFrom`: positive integer greater than `currentTray`. - `nextTrayTo`: positive integer greater than or equal to `nextTrayFrom`. - `daysPerTray`: positive integer. - `startDate`: date in `YYYY-MM-DD` format.