Access to multiple astronomy data sources
Check the docs depth and real endpoint shape before assuming production fit.
Start by exploring the API endpoints on the official website. No authentication is required, so you can make requests directly.
Uptime · 30-day window
About this API
arcsecond.io provides access to multiple astronomy data sources through a unified API. It is designed for developers and researchers who need to retrieve astronomical data such as information about stars, celestial objects, and events.
The API does not require authentication, making it easy to integrate into various applications without managing API keys or tokens. Its RESTful design allows straightforward HTTP requests to fetch data.
This API is relevant for educational tools, astronomy apps, and scientific projects that require reliable access to diverse astronomy datasets in a simple and accessible manner.
What you can build
- 1Display star and celestial object data
- 2Generate astronomy charts or visualizations
- 3Query astronomical event information
- 4Integrate space data into educational apps
Strengths & limitations
Strengths
- Access to multiple astronomy data sources
- No authentication required
- Simple RESTful API
Getting started
Start by exploring the API endpoints on the official website. No authentication is required, so you can make requests directly.
FAQ
Do I need an API key to use arcsecond.io?+
No, arcsecond.io does not require any authentication or API key.
What kind of data can I get from arcsecond.io?+
You can access multiple astronomy data sources including stars, celestial objects, and astronomical events.
Is HTTPS required to access the API?+
While not explicitly stated, it is recommended to use HTTPS for secure data transmission.
Can I use arcsecond.io API directly from a browser?+
Yes, since no authentication is needed, you can make requests directly from client-side code.
Technical details
- Auth type
- none
- Pricing
- free
- Protocols
- REST
- Response time
- 513 ms
- Last health check
- 7/14/2026, 5:45:47 AM