Search confirmed exoplanets in the NASA Exoplanet Archive...
Search confirmed exoplanets in the NASA Exoplanet Archive (~6,000, updated weekly — past any LLM training cutoff). Filter by name (planet, partial), hostStar (partial), discoveryYear, or method (e.g. "Transit", "Radial Velocity", "Microlensing"). Each planet: name, host star + how many stars/planets in the system, discovery method/year/facility, orbital period, semi-major axis, radius (Earth radii), mass (Earth masses), equilibrium temperature, insolation; host-star spectral type/temperature/radius/mass; distance in parsecs + light-years; and RA/dec. Astronomy, habitability research, science education. Public-domain NASA data.
Request
- Base URL: https://2s.io
- URL: https://2s.io/api/space/exoplanet
- Auth: API key in header PAYMENT-SIGNATURE
Query parameters
Name to search for.
Host star.
Discovery year.
Method.
Maximum number of results to return.
Try before you buy. Set to 1 for one free real call per endpoint per hour — no wallet or payment needed — to verify the endpoint before paying. Equivalent to sending the "X-2s-Trial: 1" request header. Listed only on operations that offer a trial; the others always answer 402.
Response
Changes
No recorded changes to this operation across all 1 revision of this API.