# Moon Phase Calculator MCP for AI Agents AI Agent Connect > Moon Phase Calculator provides precise lunar data for any date. It calculates phase names like Full Moon or Waxing Crescent and gives exact illumination percentages. Use it to generate monthly lunar schedules or compare moon brightness between two different dates without needing to juggle multiple external APIs. ## Overview - **Category:** utilities - **Price:** Free - **Endpoint:** https://edge.vinkius.com/vk_preview_soLzpvW0Ef4xx8ewhekQSA7RwAV5LPmW6wnym2A5/ai-agent-connect - **Tags:** moon, lunar, astronomy, calendar, science ## Description The Moon Phase Calculator gives you precise lunar data for any date you need. Instead of hunting through complex astronomical tables or relying on external apps, you can ask your AI client to tell you the exact phase name and the illumination percentage of the moon for any point in time. It handles the math behind the synodic month to give you accurate results for things like Full Moons or Waxing Crescents. If you're planning a project, you can get a full monthly schedule of lunar events or even compare the brightness of two different dates to pick the best night for observation. Because this is hosted on the Vinkius catalog, you can get it running in your agent setup in seconds without needing to manage any extra API keys. It's a reliable way to keep your lunar data consistent and accurate for photography, science, or just personal curiosity. ## Tools ### compare_brightness Tells you which of two dates has a brighter moon. It's useful for choosing the best night for a specific activity. ### generate_monthly_schedule Creates a full calendar of lunar events for a month. You can use this to see all new moons and full moons at once. ### calculate_phase Returns the exact name and brightness of the moon for a date. This gives you the specific phase details you need instantly. ## Prompt Examples **Prompt:** ``` What's the moon phase on November 12th, 2024? ``` **Response:** ``` On November 12th, 2024, the Moon will be in a **Waxing Gibbous** phase with approximately **85% illumination**. ``` **Prompt:** ``` Can you give me a lunar schedule for December 2024? ``` **Response:** ``` Here is the lunar schedule for **December 2024**: * **Dec 1:** New Moon * **Dec 15:** Full Moon * **Dec 22:** Last Quarter *Note: All dates are approximate based on astronomical algorithms.* ``` **Prompt:** ``` Which date is brighter, September 5th or September 10th? ``` **Response:** ``` The Moon will be brighter on **September 10th**. It will be in a **Waxing Gibbous** phase with higher illumination compared to the **Waxing Crescent** phase on September 5th. ``` ## Capabilities ### Get exact phase names Find out if the moon is a Waxing Gibbous or a Waning Crescent for any specific date. ### Generate monthly calendars Pull a full list of lunar events for a specific month and year. ### Compare moon brightness See which of two different dates has a more brightly illuminated moon. ### Calculate illumination Get the precise percentage of the moon's visible disk for any moment. ## Use Cases ### Planning a photoshoot A photographer asks for the best moon illumination in October to find the perfect night for a landscape shot. ### Creating a science blog A writer needs a list of all full moon dates for 2025 to write a monthly lunar calendar for their readers. ### Comparing dates A hobbyist wants to know if the moon will be brighter on the 12th or the 15th to decide when to set up their telescope. ### Quick fact checking Someone wants to know the exact name of the moon phase for a specific historical date for a research project. ## Benefits - Get precise lunar phase names like Waxing Crescent or Full Moon instantly without looking up astronomical tables. - Plan your monthly schedule by using generate_monthly_schedule to see all lunar events at a glance. - Choose the best nights for observation by using compare_brightness to see which date has more illumination. - Save time on research by using calculate_phase to get exact brightness percentages for any specific day. - Work offline from external APIs because this Connector handles all the astronomical calculations internally. - Keep your data consistent by relying on a single source of truth for all your lunar cycle inquiries. ## How It Works The bottom line is you get accurate astronomical data without manual calculations or external API keys. 1. Connect the Moon Phase Calculator to your AI client via the Vinkius dashboard. 2. Ask your agent for a specific date, a full month's schedule, or a brightness comparison. 3. Receive precise lunar names, illumination percentages, and calendar dates in plain text. ## Frequently Asked Questions **What can I do with the Moon Phase Calculator MCP?** You can get precise lunar phase names, check illumination percentages for any date, and generate full monthly lunar calendars. **Can I use this to plan my photography shoots?** Yes, you can use it to find the best dates for high illumination or specific phases like a Full Moon. **How does the Moon Phase Calculator handle different years?** It can calculate lunar data for any year you provide, making it great for long-term planning. **Does this Connector require an external API key?** No, it uses internal astronomical algorithms to provide the data, so you don't have to manage any extra keys. **Can I compare the brightness of two different dates?** Yes, you can ask your agent to compare the illumination of any two dates to see which is brighter. **Is the data accurate for science projects?** Yes, it uses high-precision algorithms to provide the exact phase name and illumination percentage for any given date. **How accurate are the lunar phase calculations?** The calculations use a high-precision synodic month algorithm based on a known New Moon epoch, providing accurate phase names and illumination percentages. **Can I see the full moon schedule for next month?** Yes, you can use the `generate_monthly_schedule` tool by providing the specific month and year to get a day-by-day breakdown of lunar phases. **Does this tool require an internet connection or external API?** No, the calculations are performed locally using pure astronomical algorithms, ensuring privacy and reliability without external dependencies.