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JPL Close Approach

Near-Earth object close-approach data

🔭 Science & SpaceHEALTHYchecked 8h ago
AUTH NONECORS ✗AGENT ✓HTTPS ✓COMMERCIAL ?

NASA JPL Horizons close-approach database as JSON. Filter by date range and body — public domain, no API key.

88HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: 88 · healthy
Uptime history
98.0%90 days
100%30 days
676P50 · ms
2992P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 269 ms, slowest 1596 ms, most recent 582 ms.
Live response samplecaptured by our last successful check
GET https://ssd-api.jpl.nasa.gov/cad.api?date-min=2026-01-01&limit=1

{
  "signature": {
    "version": "1.5",
    "source": "NASA/JPL SBDB Close Approach Data API"
  },
  "count": 1,
  "total": 962,
  "fields": [
    "des",
    "orbit_id"
  ],
  "data": [
    [
      "2025 YL4",
      "4"
    ]
  ]
}
Call itcurl · fetch · python
curl "https://ssd-api.jpl.nasa.gov/cad.api?date-min=2026-01-01&limit=1"
const res = await fetch("https://ssd-api.jpl.nasa.gov/cad.api?date-min=2026-01-01&limit=1");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://ssd-api.jpl.nasa.gov/cad.api?date-min=2026-01-01&limit=1")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 3HealthyFULL DOCS ↗
Monitored path responding — GET /cad.api?date-min=2026-01-01&limit=1676 mschecked 8h ago
GET/cad.api?date-min=2026-01-01&limit=1PROBED

Near-Earth object close-approach data

GET/cad.api?limit=5

Cad Api — documented GET route.

GET/cad.api?page=1

Cad Api — documented GET route.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

JPL Close Approach: common questions

Is JPL Close Approach free to use?

Yes — JPL Close Approach is a free science & space API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does JPL Close Approach need an API key?

No — JPL Close Approach needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call JPL Close Approach from the browser?

Not directly — JPL Close Approach doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is JPL Close Approach up right now?

As of our last scheduled check, JPL Close Approach is healthy with 98.0% uptime over 90 days and a 676 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.