{"uid":"cap_w4-WF_UH4r25u7SIxlthN","slug":"calendar-systems-moon-calendar-9a55ae8f","name":"Calendar Systems Moon Calendar","description":"All new moons, first quarters, full moons and last quarters in a month (UTC) with times and a blue-moon flag.","url":"https://calendar-systems.x402tookit.com/moon-calendar?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["month"],"properties":{"month":{"type":"string","description":"YYYY-MM, 1900 to 2100"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"month":{"type":["null","string"]},"events":{"type":["array","null"],"items":{"type":"object","properties":{"utc":{"type":["null","string"]},"phase":{"type":["null","string"]}}}},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"blueMoon":{"type":["boolean","null"]},"degraded":{"type":["boolean","null"]},"newMoons":{"type":["array","null"],"items":{"type":"string"}},"fullMoons":{"type":["array","null"],"items":{"type":"string"}},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"newMoonCount":{"type":["null","number"]},"fullMoonCount":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1p7IUrsCltAmFnof0yzT8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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.","exampleAgentPrompt":"What are all the moon phases for March 2025, and is there a blue moon that month? I need the exact UTC times for each new moon, first quarter, full moon, and last quarter.","exampleUseCases":[{"title":"Blue moon detection for event planning","prompt":"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."},{"title":"Full moon schedule for photography planning","prompt":"List all the full moons and their exact UTC times for October 2024 — I want to plan around the best nights for moonlight photography."},{"title":"Complete lunar calendar for a month","prompt":"Give me all four lunar phases — new moon, first quarter, full moon, and last quarter — with their exact UTC times for June 2025."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T00:30:23.292Z","isFirstParty":false,"canonicalSlug":"calendar-systems-moon-calendar-9a55ae8f"}