{"openapi":"3.1.0","info":{"title":"NASA Exoplanets","version":"1.0.0","description":"Confirmed exoplanets from the NASA Exoplanet Archive: planet and star lookups, habitable-zone screens, discovery stats, nearest planets and calculators. One call, one computed answer, no accounts or API keys. Machine-payable over x402.","x-guidance":"NASA Exoplanets: Confirmed exoplanets from the NASA Exoplanet Archive: planet and host-star lookup, habitable-zone screens, discovery stats, nearest planets, plus planet calculators. Use /planet for one confirmed planet by name, /host-star-planets for every planet of a star, /planet-habitability to screen a planet's orbit against the habitable zone, /discovery-stats for counts by year and method, and /nearest-planets for the closest known exoplanets. Calculators need no lookup: /habitable-zone (zone edges from stellar luminosity or temperature), /equilibrium-temperature, /earth-comparison (simple ratios to Earth), /transit-depth and /hill-radius. Each paid GET returns a computed verdict with the reasons, the source and what was NOT checked. A verdict of UNVERIFIED means a lookup failed: treat it as unknown. No account or key: pay per call in USDC over x402."},"servers":[{"url":"https://exoplanets-nasa.x402tookit.com"}],"paths":{"/discovery-stats":{"get":{"operationId":"discovery_stats","summary":"Confirmed exoplanet discovery counts by year and by detection method, with totals, the peak year and a cumulative series.","description":"Confirmed exoplanet discovery counts by year and by detection method, with totals, the peak year and a cumulative series.","tags":["exoplanet","nasa","statistics","discovery","astronomy"],"parameters":[{"name":"fromYear","in":"query","required":false,"description":"First discovery year, 1989 to 2100 (default 1992, the first confirmed planets)","schema":{"type":"integer"}},{"name":"toYear","in":"query","required":false,"description":"Last discovery year, 1989 to 2100 (default 2100, meaning to date)","schema":{"type":"integer"}},{"name":"method","in":"query","required":false,"description":"Only one detection method, for example Transit, Radial Velocity, Microlensing or Imaging","schema":{"type":"string"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"fromYear":{"type":["null","number"]},"toYear":{"type":["null","number"]},"method":{"type":["null","string"]},"total":{"type":["null","number"]},"peakYear":{"type":["null","number"]},"peakCount":{"type":["null","number"]},"byYear":{"type":["array","null"],"items":{"type":"object","properties":{"year":{"type":["null","number"]},"count":{"type":["null","number"]},"cumulative":{"type":["null","number"]}}}},"byMethod":{"type":["array","null"],"items":{"type":"object","properties":{"method":{"type":["null","string"]},"count":{"type":["null","number"]},"percent":{"type":["null","number"]}}}},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"sourceUrl":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"STATS_COMPUTED","summary":"4447 confirmed exoplanets discovered 2010 to 2025, Transit only; peak year 2016 with 1432. Top method: Transit (4447, 100%).","reasons":["Year and method tallies agree.","Counts are discoveries credited to the year of publication."],"fromYear":2010,"toYear":2025,"method":"Transit","total":4447,"peakYear":2016,"peakCount":1432,"byYear":[{"year":2010,"count":46,"cumulative":46},{"year":2011,"count":80,"cumulative":126}],"byMethod":[{"method":"Transit","count":4447,"percent":100}],"degraded":false,"notChecked":["planets the archive does not list as confirmed (candidates, such as TESS objects of interest, are not counted)","discovery bias: counts reflect which missions and surveys were running, not how common planets are","…2 more"],"source":"NASA Exoplanet Archive (Caltech/IPAC)","sourceUrl":"https://exoplanetarchive.ipac.caltech.edu","asOf":"2026-10-11T08:48:41.198Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0300"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/discovery-stats"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/discovery-stats"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/discovery-stats"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/discovery-stats"}}]}}},"/earth-comparison":{"get":{"operationId":"earth_comparison","summary":"Planet size, mass, density, gravity and escape speed as ratios to Earth, with insolation if luminosity and orbit are given.","description":"Planet size, mass, density, gravity and escape speed as ratios to Earth, with insolation if luminosity and orbit are given.","tags":["exoplanet","earth","comparison","planet","calculator"],"parameters":[{"name":"radiusEarth","in":"query","required":true,"description":"Planet radius in Earth radii, 0.05 to 30","schema":{"type":"number"}},{"name":"massEarth","in":"query","required":false,"description":"Planet mass in Earth masses, 0.001 to 20000","schema":{"type":"number"}},{"name":"luminositySolar","in":"query","required":false,"description":"Star luminosity in solar units (with orbitAu)","schema":{"type":"number"}},{"name":"orbitAu","in":"query","required":false,"description":"Semi-major axis in AU (with luminositySolar)","schema":{"type":"number"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"radiusEarth":{"type":["null","number"]},"sizeClass":{"type":["null","string"]},"radius":{"type":["null","number"]},"mass":{"type":["null","number"]},"density":{"type":["null","number"]},"densityGcc":{"type":["null","number"]},"surfaceGravity":{"type":["null","number"]},"escapeVelocityKmS":{"type":["null","number"]},"escapeVelocityRatio":{"type":["null","number"]},"formulas":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"COMPUTED","summary":"Compared with Earth: radius 0.92x Earth (Earth-size); mass 0.692x; gravity 0.8176x; density 4.9 g/cc (Earth 5.514); escape speed 9.701 km/s.","reasons":["Ratios come from the radius and mass you supplied.","Radius is within the range where planets are usually rocky (about 1.6 Earth radii or less)."],"radiusEarth":0.92,"sizeClass":"Earth-size","radius":0.92,"mass":0.692,"density":0.8887,"densityGcc":4.9,"surfaceGravity":0.8176,"escapeVelocityKmS":9.701,"escapeVelocityRatio":0.8673,"formulas":"density = 5.514 M / R^3 g/cc; gravity = M / R^2 (Earth = 1); escape speed = 11.186 sqrt(M / R) km/s","degraded":false,"notChecked":["habitability: matching Earth's size or flux does not make a planet habitable","composition: density hints at rock versus gas but does not identify it","…1 more"],"source":"computed locally","asOf":"2026-10-11T08:48:41.459Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/earth-comparison"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/earth-comparison"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/earth-comparison"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/earth-comparison"}}]}}},"/equilibrium-temperature":{"get":{"operationId":"equilibrium_temperature","summary":"Planet equilibrium temperature in K, C and F from star luminosity or temperature and radius, orbit distance and albedo.","description":"Planet equilibrium temperature in K, C and F from star luminosity or temperature and radius, orbit distance and albedo.","tags":["exoplanet","temperature","astronomy","planet","calculator"],"parameters":[{"name":"orbitAu","in":"query","required":true,"description":"Semi-major axis in AU, 0.001 to 1000","schema":{"type":"number"}},{"name":"luminositySolar","in":"query","required":false,"description":"Star luminosity in solar units (give this, or teffK with radiusSolar)","schema":{"type":"number"}},{"name":"teffK","in":"query","required":false,"description":"Star effective temperature in K (with radiusSolar)","schema":{"type":"number"}},{"name":"radiusSolar","in":"query","required":false,"description":"Star radius in solar radii (with teffK)","schema":{"type":"number"}},{"name":"albedo","in":"query","required":false,"description":"Bond albedo 0 to 0.95 (default 0; Earth is about 0.3)","schema":{"type":"number"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"orbitAu":{"type":["null","number"]},"luminositySolar":{"type":["null","number"]},"luminosityDerivedFromTeffAndRadius":{"type":["boolean","null"]},"albedo":{"type":["null","number"]},"equilibriumK":{"type":["null","number"]},"equilibriumC":{"type":["null","number"]},"equilibriumF":{"type":["null","number"]},"insolationEarth":{"type":["null","number"]},"zeroAlbedoK":{"type":["null","number"]},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"COMPUTED","summary":"At 1 au from a 1 L-sun star with albedo 0.3, the equilibrium temperature is 254.6 K (-18.57 C, -1.429 F).","reasons":["T = ((S (1 - A)) / (4 sigma))^(1/4) with S = 1361 W/m2 x L / a^2: heat spread evenly over the planet, no atmosphere.","The NASA Exoplanet Archive's own pl_eqt column matches the zero-albedo case.","…1 more"],"orbitAu":1,"luminositySolar":1,"luminosityDerivedFromTeffAndRadius":false,"albedo":0.3,"equilibriumK":254.58,"equilibriumC":-18.572,"equilibriumF":-1.4293,"insolationEarth":1,"zeroAlbedoK":278.32,"degraded":false,"notChecked":["the greenhouse effect and atmosphere: Venus and Earth's real surface temperatures differ strongly from equilibrium","day-night and latitude differences (heat is assumed spread evenly over the whole surface)","…2 more"],"source":"computed locally","asOf":"2026-10-11T08:48:41.724Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/equilibrium-temperature"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/equilibrium-temperature"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/equilibrium-temperature"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/equilibrium-temperature"}}]}}},"/habitable-zone":{"get":{"operationId":"habitable_zone","summary":"Habitable-zone edges in AU for a star from luminosity or radius, plus temperature (Kopparapu 2013), and where an orbit falls.","description":"Habitable-zone edges in AU for a star from luminosity or radius, plus temperature (Kopparapu 2013), and where an orbit falls.","tags":["habitable-zone","exoplanet","star","astronomy","calculator"],"parameters":[{"name":"teffK","in":"query","required":true,"description":"Star effective temperature in K, 2000 to 10000 (model fitted for 2600 to 7200)","schema":{"type":"number"}},{"name":"luminositySolar","in":"query","required":false,"description":"Star luminosity in solar units (give this, or radiusSolar)","schema":{"type":"number"}},{"name":"radiusSolar","in":"query","required":false,"description":"Star radius in solar radii (used with teffK when luminosity is not given)","schema":{"type":"number"}},{"name":"orbitAu","in":"query","required":false,"description":"Planet semi-major axis in AU, to place it against the zone","schema":{"type":"number"}},{"name":"periodDays","in":"query","required":false,"description":"Orbital period in days (with massSolar, instead of orbitAu)","schema":{"type":"number"}},{"name":"massSolar","in":"query","required":false,"description":"Star mass in solar masses, used with periodDays","schema":{"type":"number"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"teffK":{"type":["null","number"]},"luminositySolar":{"type":["null","number"]},"luminositySource":{"type":["null","string"]},"conservativeZoneAu":{"type":["null","object"],"properties":{"inner":{"type":["null","number"]},"outer":{"type":["null","number"]}}},"optimisticZoneAu":{"type":["null","object"],"properties":{"inner":{"type":["null","number"]},"outer":{"type":["null","number"]}}},"inFittedTemperatureRange":{"type":["boolean","null"]},"method":{"type":["null","string"]},"orbitAu":{"type":["null","number"]},"orbitSource":{"type":["null","string"]},"position":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"INSIDE_CONSERVATIVE_HZ","summary":"For L = 1 solar and Teff 5780 K, the conservative habitable zone is 0.993 to 1.71 au and the optimistic zone 0.751 to 1.77 au. An orbit at 1 au: inside conservative hz.","reasons":["Star temperature is inside the model's fitted range (2600 to 7200 K)."],"teffK":5780,"luminositySolar":1,"luminositySource":"given","conservativeZoneAu":{"inner":0.9931,"outer":1.705},"optimisticZoneAu":{"inner":0.7505,"outer":1.774},"inFittedTemperatureRange":true,"method":"Kopparapu et al. 2013 (ApJ 765, 131): moist greenhouse to maximum greenhouse limits (conservative); recent Venus to early Mars limits (optimistic); distance = sqrt(L / S_eff(Teff))","orbitAu":1,"orbitSource":"given","position":"INSIDE_CONSERVATIVE_ZONE","degraded":false,"notChecked":["planet properties: mass, atmosphere, albedo and the greenhouse effect set what the zone really is for a given planet","stellar activity, flares, tidal locking and the star's changing brightness over time","…2 more"],"source":"computed locally","asOf":"2026-10-11T08:48:41.986Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/habitable-zone"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/habitable-zone"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/habitable-zone"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/habitable-zone"}}]}}},"/hill-radius":{"get":{"operationId":"hill_radius","summary":"Hill radius of a planet in AU and km from its mass, orbit, eccentricity and star mass, with the stable-moon region.","description":"Hill radius of a planet in AU and km from its mass, orbit, eccentricity and star mass, with the stable-moon region.","tags":["exoplanet","orbit","moon","astronomy","calculator"],"parameters":[{"name":"planetMass","in":"query","required":true,"description":"Planet mass value, 0.001 to 100000","schema":{"type":"number"}},{"name":"massUnit","in":"query","required":false,"description":"earth (default) or jupiter","schema":{"type":"string"}},{"name":"orbitAu","in":"query","required":true,"description":"Semi-major axis in AU, 0.001 to 10000","schema":{"type":"number"}},{"name":"eccentricity","in":"query","required":false,"description":"Orbital eccentricity 0 to 0.99 (default 0)","schema":{"type":"number"}},{"name":"starMassSolar","in":"query","required":false,"description":"Star mass in solar masses, 0.05 to 100 (default 1)","schema":{"type":"number"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"hillRadiusAu":{"type":["null","number"]},"hillRadiusKm":{"type":["null","number"]},"planetMassSolar":{"type":["null","number"]},"stableProgradeAu":{"type":["null","number"]},"stableProgradeKm":{"type":["null","number"]},"stableRetrogradeAu":{"type":["null","number"]},"stableRetrogradeKm":{"type":["null","number"]},"hillRadiusInEarthRadii":{"type":["null","number"]},"hillRadiusInJupiterRadii":{"type":["null","number"]},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"COMPUTED","summary":"Hill radius 0.009837 au (1472000 km) for a 1 earth-mass planet at 1 au around a 1 solar-mass star (eccentricity 0.0167). Prograde moons are stable out to roughly 720000 km.","reasons":["Hill radius = a (1 - e) (m / 3M)^(1/3).","Stable satellite orbits extend to about 0.49 of the Hill radius for prograde moons and about 0.93 for retrograde moons (Domingos et al. 2006)."],"hillRadiusAu":0.0098368,"hillRadiusKm":1471600,"planetMassSolar":0.0000030035,"stableProgradeAu":0.004815,"stableProgradeKm":720300,"stableRetrogradeAu":0.009157,"stableRetrogradeKm":1370000,"hillRadiusInEarthRadii":230.7,"hillRadiusInJupiterRadii":20.58,"degraded":false,"notChecked":["the real stability of a moon: tides, the planet's spin and other bodies matter, and close-in planets lose moons to tidal decay","other planets in the system","…1 more"],"source":"computed locally","asOf":"2026-10-11T08:48:42.237Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/hill-radius"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/hill-radius"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/hill-radius"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/hill-radius"}}]}}},"/host-star-planets":{"get":{"operationId":"host_star_planets","summary":"All confirmed planets of a host star by name, with star properties and each planet's period, size and habitable-zone position.","description":"All confirmed planets of a host star by name, with star properties and each planet's period, size and habitable-zone position.","tags":["exoplanet","nasa","star","system","astronomy"],"parameters":[{"name":"star","in":"query","required":true,"description":"Host star name, for example TRAPPIST-1, Kepler-90 or Proxima Cen","schema":{"type":"string"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"star":{"type":["null","object"],"properties":{"name":{"type":["null","string"]},"spectralType":{"type":["null","string"]},"temperatureK":{"type":["null","number"]},"radiusSolar":{"type":["null","number"]},"massSolar":{"type":["null","number"]},"luminosityLog10Solar":{"type":["null","number"]},"ageGyr":{"type":["null","number"]},"distanceParsecs":{"type":["null","number"]},"distanceLightYears":{"type":["null","number"]},"starsInSystem":{"type":["null","number"]}}},"planetCount":{"type":["null","number"]},"conservativeZoneCount":{"type":["null","number"]},"planets":{"type":["array","null"],"items":{"type":"object","properties":{"name":{"type":["null","string"]},"host":{"type":["null","string"]},"discoveryYear":{"type":["null","number"]},"discoveryMethod":{"type":["null","string"]},"orbitalPeriodDays":{"type":["null","number"]},"semiMajorAxisAu":{"type":["null","number"]},"radiusEarth":{"type":["null","number"]},"sizeClass":{"type":["null","string"]},"massEarth":{"type":["null","number"]},"massIsMinimum":{"type":["boolean","null"]},"equilibriumTempK":{"type":["null","number"]},"insolationEarth":{"type":["null","number"]},"habitableZonePosition":{"type":["null","string"]}}}},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"sourceUrl":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"SYSTEM_FOUND","summary":"TRAPPIST-1 has 7 confirmed planet(s) in the archive and is 40.5 light-years away; 3 orbit(s) in the conservative habitable zone (TRAPPIST-1 e, TRAPPIST-1 f, TRAPPIST-1 g).","reasons":["Habitable-zone position is a screen of orbit against the Kopparapu 2013 climate model, not a habitability claim.","Archive lists 7 planet(s) in the system and 7 returned."],"star":{"name":"TRAPPIST-1","spectralType":"M8.0 V","temperatureK":2566,"radiusSolar":0.1192,"massSolar":0.0898,"luminosityLog10Solar":-3.25727,"ageGyr":7.6,"distanceParsecs":12.42988881,"distanceLightYears":40.54,"starsInSystem":1},"planetCount":7,"conservativeZoneCount":3,"planets":[{"name":"TRAPPIST-1 b","host":"TRAPPIST-1","discoveryYear":2016,"discoveryMethod":"Transit","orbitalPeriodDays":1.510826,"semiMajorAxisAu":0.01154,"radiusEarth":1.116,"sizeClass":"Earth-size","massEarth":1.374,"massIsMinimum":false,"equilibriumTempK":397.6,"insolationEarth":4.153,"habitableZonePosition":"TOO_HOT_INSIDE_OPTIMISTIC_INNER_EDGE"},{"name":"TRAPPIST-1 c","host":"TRAPPIST-1","discoveryYear":2016,"discoveryMethod":"Transit","orbitalPeriodDays":2.421937,"semiMajorAxisAu":0.0158,"radiusEarth":1.097,"sizeClass":"Earth-size","massEarth":1.308,"massIsMinimum":false,"equilibriumTempK":339.7,"insolationEarth":2.214,"habitableZonePosition":"TOO_HOT_INSIDE_OPTIMISTIC_INNER_EDGE"}],"degraded":false,"notChecked":["planets not yet confirmed or not yet discovered: a short list does not mean a short system","companion stars' own planets (each host star is listed separately by the archive)","…2 more"],"source":"NASA Exoplanet Archive (Caltech/IPAC)","sourceUrl":"https://exoplanetarchive.ipac.caltech.edu","asOf":"2026-10-11T08:48:43.760Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/host-star-planets"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/host-star-planets"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/host-star-planets"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/host-star-planets"}}]}}},"/nearest-planets":{"get":{"operationId":"nearest_planets","summary":"Closest known exoplanets to the Sun in light-years, optional size filter, with star type, orbit and habitable-zone position.","description":"Closest known exoplanets to the Sun in light-years, optional size filter, with star type, orbit and habitable-zone position.","tags":["exoplanet","nasa","nearby","astronomy","star"],"parameters":[{"name":"limit","in":"query","required":false,"description":"Planets returned, 1 to 50 (default 15)","schema":{"type":"integer"}},{"name":"maxDistancePc","in":"query","required":false,"description":"Search out to this many parsecs, 1 to 25 (default 10; 1 pc = 3.26 light-years)","schema":{"type":"number"}},{"name":"minRadiusEarth","in":"query","required":false,"description":"Only planets at least this many Earth radii, 0.1 to 30","schema":{"type":"number"}},{"name":"maxRadiusEarth","in":"query","required":false,"description":"Only planets at most this many Earth radii, 0.1 to 30 (use 1.6 for likely rocky)","schema":{"type":"number"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"maxDistancePc":{"type":["null","number"]},"totalMatches":{"type":["null","number"]},"returned":{"type":["null","number"]},"planets":{"type":["array","null"],"items":{"type":"object","properties":{"name":{"type":["null","string"]},"host":{"type":["null","string"]},"discoveryYear":{"type":["null","number"]},"discoveryMethod":{"type":["null","string"]},"orbitalPeriodDays":{"type":["null","number"]},"semiMajorAxisAu":{"type":["null","number"]},"radiusEarth":{"type":["null","number"]},"sizeClass":{"type":["null","string"]},"massEarth":{"type":["null","number"]},"massIsMinimum":{"type":["boolean","null"]},"equilibriumTempK":{"type":["null","number"]},"insolationEarth":{"type":["null","number"]},"distanceParsecs":{"type":["null","number"]},"distanceLightYears":{"type":["null","number"]},"starSpectralType":{"type":["null","string"]},"habitableZonePosition":{"type":["null","string"]}}}},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"sourceUrl":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"PLANETS_LISTED","summary":"41 confirmed planet(s) within 8 pc (26.1 light-years) with radius 0 to 1.6 Earth radii; nearest: Proxima Cen b at 4.244 light-years. 1 of the 10 listed orbit inside the conservative habitable zone.","reasons":["Ranked by the host star's distance; planets of one star share a distance.","31 more match but are not listed."],"maxDistancePc":8,"totalMatches":41,"returned":10,"planets":[{"name":"Proxima Cen b","host":"Proxima Cen","discoveryYear":2016,"discoveryMethod":"Radial Velocity","orbitalPeriodDays":11.18465,"semiMajorAxisAu":0.04848,"radiusEarth":1.02,"sizeClass":"Earth-size","massEarth":1.055,"massIsMinimum":true,"equilibriumTempK":218,"insolationEarth":0.641,"distanceParsecs":1.30119,"distanceLightYears":4.244,"starSpectralType":"M5.5 V","habitableZonePosition":"INSIDE_CONSERVATIVE_ZONE"},{"name":"Proxima Cen d","host":"Proxima Cen","discoveryYear":2025,"discoveryMethod":"Radial Velocity","orbitalPeriodDays":5.12338,"semiMajorAxisAu":0.02881,"radiusEarth":0.692,"sizeClass":"sub-Earth","massEarth":0.26,"massIsMinimum":true,"equilibriumTempK":282,"insolationEarth":1.814,"distanceParsecs":1.30119,"distanceLightYears":4.244,"starSpectralType":"M5.5 V","habitableZonePosition":"TOO_HOT_INSIDE_OPTIMISTIC_INNER_EDGE"}],"degraded":false,"notChecked":["planets with no archive distance (they cannot be ranked)","undiscovered planets: nearby planets are mostly found by radial velocity, which favours large close-in planets","…2 more"],"source":"NASA Exoplanet Archive (Caltech/IPAC)","sourceUrl":"https://exoplanetarchive.ipac.caltech.edu","asOf":"2026-10-11T08:48:45.178Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/nearest-planets"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/nearest-planets"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/nearest-planets"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/nearest-planets"}}]}}},"/planet-habitability":{"get":{"operationId":"planet_habitability","summary":"Habitable-zone screen for a named exoplanet: orbit versus the zone edges, size class and rocky-planet plausibility.","description":"Habitable-zone screen for a named exoplanet: orbit versus the zone edges, size class and rocky-planet plausibility.","tags":["exoplanet","habitable-zone","nasa","screen","astronomy"],"parameters":[{"name":"name","in":"query","required":true,"description":"Planet name, for example TRAPPIST-1 e or Kepler-442 b","schema":{"type":"string"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"name":{"type":["null","string"]},"host":{"type":["null","string"]},"luminositySolar":{"type":["null","number"]},"luminositySource":{"type":["null","string"]},"orbitAu":{"type":["null","number"]},"orbitSource":{"type":["null","string"]},"insolationEarth":{"type":["null","number"]},"conservativeZoneAu":{"type":["array","null"],"items":{"type":"number"}},"optimisticZoneAu":{"type":["array","null"],"items":{"type":"number"}},"position":{"type":["null","string"]},"starTempInModelRange":{"type":["boolean","null"]},"hzMethod":{"type":["null","string"]},"sizeClass":{"type":["null","string"]},"radiusEarth":{"type":["null","number"]},"massEarth":{"type":["null","number"]},"massIsMinimum":{"type":["boolean","null"]},"equilibriumTempK":{"type":["null","object"],"properties":{"zeroAlbedo":{"type":["null","number"]},"earthLikeAlbedo0p3":{"type":["null","number"]},"archiveValue":{"type":["null","number"]}}},"earthRatios":{"type":["null","object"],"properties":{"radius":{"type":["null","number"]},"mass":{"type":["null","number"]},"density":{"type":["null","number"]},"densityGcc":{"type":["null","number"]},"surfaceGravity":{"type":["null","number"]},"escapeVelocityKmS":{"type":["null","number"]},"escapeVelocityRatio":{"type":["null","number"]}}},"controversial":{"type":["boolean","null"]},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"sourceUrl":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"INSIDE_CONSERVATIVE_HZ","summary":"Kepler-442 b orbits at 0.409 au; the Kepler-442 habitable zone spans 0.358 to 0.656 au (conservative) and 0.27 to 0.682 au (optimistic): inside conservative hz. Size class: super-Earth.","reasons":["Method: Kopparapu et al. 2013 climate-model flux limits (moist greenhouse and maximum greenhouse for the conservative zone; recent Venus and early Mars for the optimistic zone), scaled by stellar lumi…","Radius 1.34 Earth radii is within the range where planets are usually rocky (about 1.6 or less).","…2 more"],"name":"Kepler-442 b","host":"Kepler-442","luminositySolar":0.1169,"luminositySource":"archive luminosity (log10 solar)","orbitAu":0.409,"orbitSource":"archive semi-major axis","insolationEarth":0.699,"conservativeZoneAu":[0.358,0.656],"optimisticZoneAu":[0.27,0.682],"position":"INSIDE_CONSERVATIVE_ZONE","starTempInModelRange":true,"hzMethod":"Kopparapu et al. 2013, ApJ 765, 131: S_eff = S0 + aT + bT^2 + cT^3 + dT^4, T = Teff - 5780; distance = sqrt(L / S_eff)","sizeClass":"super-Earth","radiusEarth":1.34,"massEarth":2.36,"massIsMinimum":false,"equilibriumTempK":{"zeroAlbedo":254.5,"earthLikeAlbedo0p3":232.8,"archiveValue":241},"earthRatios":{"radius":1.34,"mass":2.36,"density":0.9808,"densityGcc":5.408,"surfaceGravity":1.314,"escapeVelocityKmS":14.84,"escapeVelocityRatio":1.327},"controversial":false,"degraded":false,"notChecked":["atmosphere, magnetic field, water, tidal locking, flares and stellar activity: none are known for most planets","whether the planet is rocky: a radius under about 1.6 Earth radii makes a rocky planet likely, but mass is often unknown","…2 more"],"source":"NASA Exoplanet Archive (Caltech/IPAC)","sourceUrl":"https://exoplanetarchive.ipac.caltech.edu","asOf":"2026-10-11T08:48:46.408Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet-habitability"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet-habitability"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet-habitability"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet-habitability"}}]}}},"/planet":{"get":{"operationId":"planet","summary":"Confirmed exoplanet by name: star, orbit, size, mass, temperature, discovery, Earth ratios and habitable-zone position.","description":"Confirmed exoplanet by name: star, orbit, size, mass, temperature, discovery, Earth ratios and habitable-zone position.","tags":["exoplanet","nasa","planet","astronomy","star"],"parameters":[{"name":"name","in":"query","required":true,"description":"Planet name, for example TRAPPIST-1 e, Kepler-442 b or Proxima Cen b","schema":{"type":"string"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"name":{"type":["null","string"]},"host":{"type":["null","string"]},"discoveryYear":{"type":["null","number"]},"discoveryMethod":{"type":["null","string"]},"orbitalPeriodDays":{"type":["null","number"]},"semiMajorAxisAu":{"type":["null","number"]},"radiusEarth":{"type":["null","number"]},"sizeClass":{"type":["null","string"]},"massEarth":{"type":["null","number"]},"massIsMinimum":{"type":["boolean","null"]},"equilibriumTempK":{"type":["null","number"]},"insolationEarth":{"type":["null","number"]},"controversial":{"type":["boolean","null"]},"discoveryFacility":{"type":["null","string"]},"eccentricity":{"type":["null","number"]},"densityGcc":{"type":["null","number"]},"transitDetected":{"type":["boolean","null"]},"transitDepthPercent":{"type":["null","number"]},"star":{"type":["null","object"],"properties":{"name":{"type":["null","string"]},"spectralType":{"type":["null","string"]},"temperatureK":{"type":["null","number"]},"radiusSolar":{"type":["null","number"]},"massSolar":{"type":["null","number"]},"luminosityLog10Solar":{"type":["null","number"]},"metallicity":{"type":["null","number"]},"ageGyr":{"type":["null","number"]},"planetsInSystem":{"type":["null","number"]},"starsInSystem":{"type":["null","number"]}}},"distanceParsecs":{"type":["null","number"]},"distanceLightYears":{"type":["null","number"]},"skyPosition":{"type":["null","object"],"properties":{"raDeg":{"type":["null","number"]},"decDeg":{"type":["null","number"]}}},"earthRatios":{"type":["null","object"],"properties":{"radius":{"type":["null","number"]},"mass":{"type":["null","number"]},"density":{"type":["null","number"]},"densityGcc":{"type":["null","number"]},"surfaceGravity":{"type":["null","number"]},"escapeVelocityKmS":{"type":["null","number"]},"escapeVelocityRatio":{"type":["null","number"]}}},"habitableZone":{"type":["null","object"],"properties":{"luminositySolar":{"type":["null","number"]},"luminositySource":{"type":["null","string"]},"orbitAu":{"type":["null","number"]},"orbitSource":{"type":["null","string"]},"insolationEarth":{"type":["null","number"]},"conservativeZoneAu":{"type":["array","null"],"items":{"type":"number"}},"optimisticZoneAu":{"type":["array","null"],"items":{"type":"number"}},"position":{"type":["null","string"]},"starTempInModelRange":{"type":["boolean","null"]}}},"habitableZoneNote":{},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"sourceUrl":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"PLANET_FOUND","summary":"TRAPPIST-1 e orbits TRAPPIST-1, 40.5 light-years away: Earth-size, 0.92 Earth radii, 0.692 Earth masses, 6.101-day orbit, 249.7 K. Discovered 2017 by Transit.","reasons":["Orbit position against the Kopparapu 2013 habitable zone: INSIDE_CONSERVATIVE_ZONE.","Not flagged controversial by the archive.","…1 more"],"name":"TRAPPIST-1 e","host":"TRAPPIST-1","discoveryYear":2017,"discoveryMethod":"Transit","orbitalPeriodDays":6.101013,"semiMajorAxisAu":0.02925,"radiusEarth":0.92,"sizeClass":"Earth-size","massEarth":0.692,"massIsMinimum":false,"equilibriumTempK":249.7,"insolationEarth":0.646,"controversial":false,"discoveryFacility":"Multiple Observatories","eccentricity":0.0051,"densityGcc":4.901605,"transitDetected":true,"transitDepthPercent":0.5012,"star":{"name":"TRAPPIST-1","spectralType":"M8.0 V","temperatureK":2566,"radiusSolar":0.1192,"massSolar":0.0898,"luminosityLog10Solar":-3.25727,"metallicity":0.052,"ageGyr":7.6,"planetsInSystem":7,"starsInSystem":1},"distanceParsecs":12.42988881,"distanceLightYears":40.54,"skyPosition":{"raDeg":346.6263919,"decDeg":-5.0434618},"earthRatios":{"radius":0.92,"mass":0.692,"density":0.8887,"densityGcc":4.9,"surfaceGravity":0.8176,"escapeVelocityKmS":9.701,"escapeVelocityRatio":0.8673},"habitableZone":{"luminositySolar":0.000553,"luminositySource":"archive luminosity (log10 solar)","orbitAu":0.02925,"orbitSource":"archive semi-major axis","insolationEarth":0.646,"conservativeZoneAu":[0.0256,0.0508],"optimisticZoneAu":[0.0194,0.0528],"position":"INSIDE_CONSERVATIVE_ZONE","starTempInModelRange":false},"habitableZoneNote":null,"degraded":false,"notChecked":["planets the archive lists as not confirmed or retracted","the archive's other parameter sets for the same planet (this uses its composite best values)","…2 more"],"source":"NASA Exoplanet Archive (Caltech/IPAC)","sourceUrl":"https://exoplanetarchive.ipac.caltech.edu","asOf":"2026-10-11T08:48:47.866Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/planet"}}]}}},"/transit-depth":{"get":{"operationId":"transit_depth","summary":"Transit depth (Rp/Rs squared) in percent and ppm from planet and star radius, plus duration if period and star mass are given.","description":"Transit depth (Rp/Rs squared) in percent and ppm from planet and star radius, plus duration if period and star mass are given.","tags":["exoplanet","transit","astronomy","photometry","calculator"],"parameters":[{"name":"planetRadius","in":"query","required":true,"description":"Planet radius value, 0.01 to 1000","schema":{"type":"number"}},{"name":"planetUnit","in":"query","required":false,"description":"earth (default) or jupiter","schema":{"type":"string"}},{"name":"starRadiusSolar","in":"query","required":true,"description":"Star radius in solar radii, 0.05 to 1000","schema":{"type":"number"}},{"name":"periodDays","in":"query","required":false,"description":"Orbital period in days (with starMassSolar) for the duration","schema":{"type":"number"}},{"name":"starMassSolar","in":"query","required":false,"description":"Star mass in solar masses (with periodDays)","schema":{"type":"number"}},{"name":"impactParameter","in":"query","required":false,"description":"Impact parameter 0 (central) to 1 (default 0)","schema":{"type":"number"}}],"responses":{"200":{"description":"The answer.","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":["null","string"]},"summary":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"planetRadiusKm":{"type":["null","number"]},"starRadiusKm":{"type":["null","number"]},"radiusRatio":{"type":["null","number"]},"depthFraction":{"type":["null","number"]},"depthPercent":{"type":["null","number"]},"depthPpm":{"type":["null","number"]},"formula":{"type":["null","string"]},"semiMajorAxisAu":{"type":["null","number"]},"transitDurationHours":{"type":["null","number"]},"transitDurationFormula":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"source":{"type":["null","string"]},"asOf":{"type":["null","string"]},"disclaimer":{"type":["null","string"]}}},"example":{"verdict":"COMPUTED","summary":"A 1 earth-radius planet crossing a 1 solar-radius star blocks 0.00841% of the light (84.1 ppm). The transit lasts about 13.1 hours at impact parameter 0 (orbit 1 au).","reasons":["Radii use IAU nominal equatorial values: Earth 6378.1 km, Jupiter 71492 km, Sun 695700 km."],"planetRadiusKm":6378.1,"starRadiusKm":695700,"radiusRatio":0.0091679,"depthFraction":0.00008405,"depthPercent":0.008405,"depthPpm":84.05,"formula":"depth = (Rp / Rs)^2","semiMajorAxisAu":1,"transitDurationHours":13.1,"transitDurationFormula":"T = (P / pi) asin( sqrt((Rs + Rp)^2 - (b Rs)^2) / a )","degraded":false,"notChecked":["limb darkening, which deepens the real centre-of-transit dip by tens of percent","starspots, flares and other stars blended into the light curve","…2 more"],"source":"computed locally","asOf":"2026-10-11T08:48:48.123Z","disclaimer":"Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting."}}}},"400":{"description":"A parameter was missing or out of range."},"402":{"description":"Payment Required"},"502":{"description":"The upstream source failed or timed out."}},"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.0200"},"protocols":[{"x402":{"network":"eip155:8453","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/transit-depth"}},{"x402":{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/transit-depth"}},{"x402":{"network":"eip155:137","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/transit-depth"}},{"x402":{"network":"eip155:42161","scheme":"exact","currency":"USDC","endpoint":"https://exoplanets-nasa.x402tookit.com/transit-depth"}}]}}}}}