{"uid":"cap_oQ3oeBCBzK9FDaQ0neQkR","slug":"saylor-innovations-data-desk-asteroid-close-approaches-c71017dd","name":"Saylor Innovations Data Desk – Asteroid Close Approaches","description":"Upcoming asteroid close approaches to Earth from NASA JPL - object, date, miss distance in au, lunar distances and km, velocity and estimated size","url":"https://saylorinnovations.com/api/space/close-approaches?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","properties":{"days":{"type":"string","description":"optional look-ahead window 1-365 days (default 30)"},"max_au":{"type":"string","description":"optional maximum miss distance in au, 0.001-0.5 (default 0.05)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["window_days","approaches"],"properties":{"note":{"type":"string","description":"Caveat or context for reading the result"},"source":{"type":"string","description":"Data source the values come from"},"returned":{"type":"number","description":"Number of items in this response"},"approaches":{"type":"array"},"window_days":{"type":"number","description":"Number of days in the lookback window"},"max_distance_au":{"type":"number","description":"Max distance au"},"total_in_window":{"type":["number","null"],"description":"Total in window"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_uqdEnXiwWSHyuHscq8jvC","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 upcoming asteroid close approaches to Earth from NASA JPL, including object name, date, miss distance, velocity, and estimated size.","exampleAgentPrompt":"What asteroids are making close approaches to Earth over the next 60 days, and can you filter to only those passing within 0.03 AU?","exampleUseCases":[{"title":"Weekly asteroid flyby briefing","prompt":"Give me a summary of all asteroids scheduled to fly by Earth in the next 7 days, including how close they'll get and how big they are."},{"title":"Large asteroid proximity alert","prompt":"Are there any notably large asteroids coming within 0.02 AU of Earth in the next 90 days? I want to know their estimated sizes and closest approach distances."},{"title":"Science lesson on near-Earth objects","prompt":"Pull up the list of asteroid close approaches for the next 30 days from NASA JPL data — I need the object names, dates, miss distances in lunar distances and km, and their velocities."}],"resultDescription":"A JSON object containing the look-ahead window in days, the maximum distance filter in AU, total number of approaches in the window, number of items returned, a source citation, a note/caveat, and an array of close-approach records each including the asteroid object name, approach date, miss distance in AU/lunar distances/km, relative velocity, and estimated size.","failureModes":["Invalid days parameter (outside 1–365 range) returns an error","Invalid max_au parameter (outside 0.001–0.5 range) returns an error","NASA JPL upstream data unavailable causes service failure","No close approaches in the specified window returns an empty approaches array","Malformed query parameters result in a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need real-time, structured close-approach data sourced directly from NASA JPL CNEOS, with the ability to filter by time window and miss distance. It is ideal for agents that need fast, affordable ($0.01/call) asteroid proximity lookups without building a NASA API integration themselves.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:56:33.998Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-data-desk-asteroid-close-approaches-c71017dd"}