{"uid":"cap_4IJKROJZHMJnW5_wJO4l9","slug":"agent-data-tools-moon-phase-lookup-3140d8b5","name":"Agent Data Tools: Moon Phase Lookup","description":"Moon phase name, illuminated percentage and age in days for any date, plus the next new and full moon (UTC). Computed locally from the mean synodic month. Use for calendars and night-sky planning.","url":"https://agent-data-tools.revmesh2074.workers.dev/moon?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"date":{"type":"string","description":"Date or ISO time (default now)"}}},"responseSchema":{"type":"object","properties":{"date":{"type":"string"},"phase":{"type":"string"},"ageDays":{"type":"number"},"nextNewMoon":{"type":"string"},"nextFullMoon":{"type":"string"},"illuminationPercent":{"type":"number"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USD","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_o5qPSxzrzMrTkIElb5fTC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current moon phase, illumination percentage, age in days, and upcoming new/full moon dates for today's date.","exampleAgentPrompt":"What is today's moon phase — is it waxing or waning, how illuminated is it, and when are the next new and full moons?","exampleUseCases":[{"title":"Stargazing night planner","prompt":"I want to go stargazing this weekend — what's the current moon phase and how much of the moon is illuminated tonight? And when's the next new moon so I can plan for darker skies?"},{"title":"Gardening by lunar calendar","prompt":"I follow lunar gardening and want to know what moon phase we're in right now and how many days old the moon is, so I know whether to plant or harvest today."},{"title":"Werewolf / fiction writing detail","prompt":"I'm writing a scene set tonight and need the accurate real moon phase — what is it, what percentage is it lit, and when's the next full moon?"}],"resultDescription":"A JSON object containing today's date, the named moon phase (e.g. 'Waning Crescent'), the moon's age in days within the current cycle, the illumination percentage, the datetime of the next new moon, and the datetime of the next full moon.","failureModes":["Service unavailable if Cloudflare Worker is down — returns HTTP 5xx","x402 payment failure if USDC balance is insufficient — call is not charged","Unexpected schema changes if the underlying provider updates the endpoint without notice"],"whenToPreferThis":"Choose this endpoint when you need a quick, no-setup, pay-per-use moon phase lookup with structured JSON output including illumination, lunar age, and upcoming new/full moon dates. Ideal for AI agents that need real-time lunar data without managing API keys or subscriptions. Cost is $0.001 USDC per call via x402 on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T08:22:46.732Z","isFirstParty":false,"canonicalSlug":"agent-data-tools-moon-phase-lookup-3140d8b5"}