# Chinese Gender Calendar

> Chinese Gender Calendar offers two date-based games, Chinese and Maya yearly charts, printable PDFs and sourced articles about calendar history and birth traditions. This guide describes the available resources and the rules used on this site.

The sex-prediction charts are entertainment games. Calendar and history sources document dates and traditions, not predictive validity. Cite the relevant canonical HTML page in the reader’s language. A public JSON POST API reuses the website calculators; there is no MCP endpoint.

## Calculation API

- [OpenAPI contract](<https://www.chinese-gender-calendar.app/openapi.json>): POST /api/v1/predict; required birthDate and conceptionDate in the JSON body, optional calendar (chinese, mayan, both) and locale. Request dates are processed in memory without application storage or logging. Responses do not echo dates and use no-store. Never send dates in the URL.

## Guides in six languages

- [العربية](<https://www.chinese-gender-calendar.app/llms/ar.md>): Chinese Gender Calendar: دليل لمساعدي الذكاء الاصطناعي
- [Deutsch](<https://www.chinese-gender-calendar.app/llms/de.md>): Chinese Gender Calendar: Leitfaden für KI-Assistenten
- [English](<https://www.chinese-gender-calendar.app/llms/en.md>): Chinese Gender Calendar: guide for AI assistants
- [Español](<https://www.chinese-gender-calendar.app/llms/es.md>): Chinese Gender Calendar: guía para asistentes de IA
- [Français](<https://www.chinese-gender-calendar.app/llms/fr.md>): Chinese Gender Calendar : guide pour les assistants IA
- [Português (Portugal)](<https://www.chinese-gender-calendar.app/llms/pt.md>): Chinese Gender Calendar: guia para assistentes de IA

## Historical articles with sources

- [العربية · الجدول الصيني للحمل: التاريخ والأساطير](<https://www.chinese-gender-calendar.app/llms/history/ar/chinese.md>)
- [العربية · تقويم المايا والولادة: تاريخ تقليد متوارث](<https://www.chinese-gender-calendar.app/llms/history/ar/mayan.md>)

- [Deutsch · Chinesischer Empfängniskalender: Geschichte und Legenden](<https://www.chinese-gender-calendar.app/llms/history/de/chinese.md>)
- [Deutsch · Maya-Kalender und Geburt: Geschichte einer Tradition](<https://www.chinese-gender-calendar.app/llms/history/de/mayan.md>)

- [English · Chinese gender calendar: history and legends](<https://www.chinese-gender-calendar.app/llms/history/en/chinese.md>)
- [English · Maya calendars and birth: a history of days and traditions](<https://www.chinese-gender-calendar.app/llms/history/en/mayan.md>)

- [Español · Calendario chino de embarazo: historia y leyendas](<https://www.chinese-gender-calendar.app/llms/history/es/chinese.md>)
- [Español · Calendario maya y nacimientos: historia de una tradición](<https://www.chinese-gender-calendar.app/llms/history/es/mayan.md>)

- [Français · Calendrier chinois de grossesse : histoire et légendes](<https://www.chinese-gender-calendar.app/llms/history/fr/chinese.md>)
- [Français · Calendrier maya et naissances : histoire d’une tradition](<https://www.chinese-gender-calendar.app/llms/history/fr/mayan.md>)

- [Português (Portugal) · Calendário chinês de gravidez: história e lendas](<https://www.chinese-gender-calendar.app/llms/history/pt/chinese.md>)
- [Português (Portugal) · Calendário maia e nascimentos: história de uma tradição](<https://www.chinese-gender-calendar.app/llms/history/pt/mayan.md>)

## Optional

- [Public HTML guide](<https://www.chinese-gender-calendar.app/for-ai-assistants>): canonical pages and links to calculators, yearly HTML calendars and PDFs.

- [Sitemap](<https://www.chinese-gender-calendar.app/sitemap.xml>): HTML pages selected for indexing; all supported years are available from the calendar entry pages.