arcsecond.io
Science & Math
Multiple astronomy data sources
No keyCORSHTTPS
NASA ADS
NASA Astrophysics Data System
Verified 4 days ago: 100% uptime
API key
OAuth flow
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 1379ms
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
How to call it
A starting template for NASA ADS. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# Uses OAuth. Exchange your credentials for an access token first.
curl -s "https://ui.adsabs.harvard.edu/ENDPOINT" \
-H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
-H "Accept: application/json"Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
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NASA ADS — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is NASA ADS free to use?
NASA ADS is listed in our free catalogue, but it requires OAuth, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.
Does NASA ADS need an API key?
NASA ADS uses OAuth rather than a simple key, so you register an application and complete an authorisation flow before making calls. That is more setup than a key, and it is why OAuth APIs are harder to try quickly.
Can I call NASA ADS from browser JavaScript?
Yes. NASA ADS returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Is NASA ADS still working?
Yes, as of 2026-09-18. Our automated check reached NASA ADS and recorded a 100% reliability score with a median response time of 1379 ms. We re-check on a schedule, and this page updates with the result.
Is NASA ADS available over HTTPS?
Yes. NASA ADS serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.