arcsecond.io
Multiple astronomy data sources
- Authentication
- No auth
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Science & Math
- Data source
- public-apis + marcelscruz
- Documentation / URL
- https://api.arcsecond.io/
Overview
arcsecond.io provides astronomy data — exoplanets, stars, and observations — keyless (verified live).
Quick Start
Exoplanets (verified live — 4,778 results):
curl "https://api.arcsecond.io/exoplanets/?limit=1"{
"count": 4778,
"next": "https://api.arcsecond.io/exoplanets/?limit=1&page=2",
"previous": null,
"results": [ { "id": 4346, "equatorial_coordinates": { "right_ascension": 34.21 } } ]
}Authentication
None — keyless.
Rate Limits & Notes
- Free; be polite — no hard published limit.
- Exoplanets, stars, and observation data (paginated).
FAQ
Is arcsecond.io free? Yes — free and keyless (verified).
What data is available? Exoplanets, stars, and observations.
Pagination?
Standard limit/page params (verified).
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