Discover / exoplanets-nasa.x402tookit.com

NASA Exoplanets

■ Challenge detected

Confirmed exoplanet discovery counts by year and by detection method, with totals, the peak year and a cumulative series.

Listed price
$0.03
Challenge detected
1 of the last check
Median response
624 ms
Last checked
21 Oct, 00:26 UTC
In our index since
21 Oct 2026

Endpoint

curl -i https://exoplanets-nasa.x402tookit.com/discovery-stats
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
9 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://exoplanets-nasa.x402tookit.com

  • GET/transit-depthNo price listedTransit depth (Rp/Rs squared) in percent and ppm from planet and star radius, plus duration if period and star mass are given.
  • GET/hill-radiusNo price listedHill radius of a planet in AU and km from its mass, orbit, eccentricity and star mass, with the stable-moon region.
  • GET/earth-comparisonNo price listedPlanet size, mass, density, gravity and escape speed as ratios to Earth, with insolation if luminosity and orbit are given.
  • GET/equilibrium-temperatureNo price listedPlanet equilibrium temperature in K, C and F from star luminosity or temperature and radius, orbit distance and albedo.
  • GET/habitable-zoneNo price listedHabitable-zone edges in AU for a star from luminosity or radius, plus temperature (Kopparapu 2013), and where an orbit falls.
  • GET/nearest-planetsNo price listedClosest known exoplanets to the Sun in light-years, optional size filter, with star type, orbit and habitable-zone position.
  • GET/host-star-planetsNo price listedAll confirmed planets of a host star by name, with star properties and each planet's period, size and habitable-zone position.
  • GET/planet-habitabilityNo price listedHabitable-zone screen for a named exoplanet: orbit versus the zone edges, size class and rocky-planet plausibility.
  • GET/discovery-statsNo price listedConfirmed exoplanet discovery counts by year and by detection method, with totals, the peak year and a cumulative series.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 9 of 9 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/exoplanets-nasa.x402tookit.com

Recent checks

21 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.21 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
21 Oct, 00:26 UTCChallenge detected402624ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 21 Oct, 00:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for NASA Exoplanets?

Its listed price is $0.03.

What payment terms does NASA Exoplanets advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is NASA Exoplanets listed?

In x402 Bazaar. Superstables first indexed it on 21 Oct 2026.

Something wrong on this page? Tell us.

NASA Exoplanets: listed price $0.03, x402 on Arbitrum, Base, Polygon and Solana