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Calendar Systems Moon Calendar
x402
Calendar Systems Moon Calendar is a paid API for AI agents from calendar-systems.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).
Returns all lunar phase events (new moon, first quarter, full moon, last quarter) for a given month in UTC, with exact times and a blue-moon flag.
Price / call$0.02
Success—
StatusUnknown
How this service works
All new moons, first quarters, full moons and last quarters in a month (UTC) with times and a blue-moon flag.
Output
Returns a structured object containing arrays of UTC datetime strings for new moons, first quarters, full moons, and last quarters within the specified month, along with counts, a boolean blue-moon flag, a summary, the source, and optional disclaimer or degraded-service indicators.
Example use cases
Blue moon detection for event planning
“Is there a blue moon in August 2023? I need to know if there are two full moons that month and the exact UTC times for each.”
Full moon schedule for photography planning
“List all the full moons and their exact UTC times for October 2024 — I want to plan around the best nights for moonlight photography.”
Complete lunar calendar for a month
“Give me all four lunar phases — new moon, first quarter, full moon, and last quarter — with their exact UTC times for June 2025.”
Technical details
Endpoint
GEThttps://calendar-systems.x402tookit.com/moon-calendar?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a complete list of all lunar phase events for a specific calendar month, especially when you need exact UTC times or need to detect blue moons. Prefer this over a single-phase lookup when you want the full monthly lunar picture rather than just the current or next phase.
Side effects
- Month parameter outside 1900–2100 range returns an error
- Malformed month string (not YYYY-MM) causes validation failure
- Degraded flag set to true if data source is partially unavailable
- Missing required 'month' query parameter results in a bad-request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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