{"uid":"cap_HeLQSWSq4ORDsIq5ZSk10","slug":"nasa-memoryapi-org-a9f50ebd","name":"NASA Astronomy Picture of the Day (APOD) API","description":"NASA data APIs with x402 micropayment access. Near Earth Objects, Space Weather (DONKI), and Astronomy Picture of the Day.","url":"https://nasa.memoryapi.org/x402/nasa/apod","method":"GET","headers":{},"bodySchema":{"properties":{"input":{"required":["method"],"properties":{"method":{"enum":["GET"],"type":"string"}}}}},"responseSchema":{"example":{"url":"https://apod.nasa.gov/apod/image/...","date":"2026-05-29","title":"A Starry Night Sky","source":"NASA APOD","success":true,"media_type":"image"}},"example":{"request":{"date":"2024-01-15","thumbs":false},"response":{"url":"https://apod.nasa.gov/apod/image/2401/IC348_webb_960.jpg","date":"2024-01-15","hdurl":"https://apod.nasa.gov/apod/image/2401/IC348_webb_3788.jpg","title":"Star Cluster IC 348 from Webb","source":"NASA APOD","success":true,"media_type":"image","explanation":"Sometimes, it's the stars that are the hardest to see that are the most interesting. IC 348 is a young star cluster that illuminates surrounding filamentary dust.  The stringy and winding dust appears pink in this recently released infrared image from the Webb Space Telescope. In visible light, this dust reflects mostly blue light, giving the surrounding material the familiar blue hue of a reflection nebula.  Besides bright stars, several cool objects have been located in IC 348, visible because they glow brighter in infrared light.  These objects are hypothesized to be low mass brown dwarfs.  Evidence for this includes the detection of an unidentified atmospheric chemical, likely a hydrocarbon, seen previously in the atmosphere of Saturn. These objects appear to have masses slightly greater than known planets, only a few times greater than Jupiter.  Together, these indicate that this young star cluster contains something noteworthy -- young planet-mass brown dwarfs that float free, not orbiting any other star."}},"exampleRequest":{"date":"2024-01-15","thumbs":false},"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8tKF9X41oLyJc7DZfeQPX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns NASA's Astronomy Picture of the Day — a daily curated space image with title and explanation.","exampleAgentPrompt":"What's today's NASA Astronomy Picture of the Day? Show me the image title and the full explanation NASA published.","exampleUseCases":null,"resultDescription":"Returns the NASA Astronomy Picture of the Day including the image URL, title, textual explanation, date, and media type (image or video).","failureModes":["Invalid or future date requested — returns error","Network timeout from NASA upstream API","API key or payment authorization failure — 402 response","NASA APOD service temporarily unavailable — upstream outage"],"whenToPreferThis":"Use this endpoint when you need NASA's official daily astronomy image with its curated title and scientific explanation. Prefer this over generic image search when you specifically want the authenticated NASA APOD content for a given date or today's entry.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:28:21.109Z","isFirstParty":false}