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Space Objects Close Approaches
x402
Space Objects Close Approaches is a paid API for AI agents from space-objects.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Returns asteroids and comets passing Earth within a configurable lunar-distance limit over a specified recent or upcoming day window, with distance, speed, and size data.
Price / call$0.02
Success—
StatusUnknown
How this service works
Asteroids and comets passing Earth within a lunar-distance limit in the next or last N days: distance, speed, size range.
Output
A JSON object containing a list of close-approach events, each with the object's name, designation, approach date, miss distance in lunar distances/AU/km, relative speed in km/s, absolute magnitude, size range estimates, time uncertainty, and days from now. Also includes a summary string, source URL, total count returned, direction (upcoming or past), and a 'closest' highlight object.
Example use cases
Weekend asteroid watch briefing
“What near-Earth objects are coming within 10 lunar distances over the next 7 days? Sort them by distance so I can see the closest ones first.”
Historical close-approach research
“Pull the last 90 days of asteroid and comet close approaches that came within 5 lunar distances of Earth, sorted by date, and give me up to 50 results.”
Space threat monitoring dashboard
“Check for any asteroids passing within 3 lunar distances in the next 30 days — I want the top 15 closest ones so I can flag anything that looks concerning.”
Technical details
Endpoint
GEThttps://space-objects.x402tookit.com/close-approaches?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a filterable, paginated list of multiple upcoming or recent Earth close approaches across all known NEOs, with configurable distance and time windows. Prefer this over the single-object lookup endpoint when you don't have a specific asteroid designation and want a broad survey. It is ideal for monitoring dashboards, alert systems, or scheduled summaries of space traffic near Earth.
Side effects
- Invalid query parameter values (e.g. days outside 1-365, limit outside 1-50, maxDistanceLD outside 0.1-50) may return a 400 error
- No results returned if no objects pass within the specified distance window during the time range
- Degraded mode flag set to true if upstream NASA/JPL data is temporarily unavailable or stale
- Payment failure (402) if x402 payment header is missing or USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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