NASA Exoplanet Archive

Query every confirmed exoplanet and its measured properties (mass, radius, orbit, host star) with SQL-like ADQL queries, returned as JSON or CSV.

Science & MathAuth: NoneHTTPS: YesCORS: noStatus: alive

Last verified: November 12, 2026

66.7% uptime: the documentation responded in 2 of 3 checks over the last 30 days. Median response time: 453 ms.

Authentication: None
HTTPS: Yes
CORS: No, call it from a server
Documentation: https://exoplanetarchive.ipac.caltech.edu/docs/TAP/usingTAP.html

// Fetch the docs page with cURL
curl https://exoplanetarchive.ipac.caltech.edu/docs/TAP/usingTAP.html

November 12, 2026: last health check, responding
November 9, 2026: Added to the directory (government api, verified by api bouncer)