# Saylor Innovations Exoplanet Lookup (NASA Exoplanet Archive)

> Saylor Innovations Exoplanet Lookup (NASA Exoplanet Archive) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-01).

Looks up detailed exoplanet data by planet or host star name from the NASA Exoplanet Archive, returning discovery metadata, orbital parameters, physical properties, and stellar characteristics.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/exoplanets/lookup?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-exoplanet-lookup-nasa-exoplanet-archive-76fa8fe1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MnF3ujuwUfPWmdNqrXoy7

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability saylor-innovations-exoplanet-lookup-nasa-exoplanet-archive-76fa8fe1
```

Example prompt: Can you look up the details for TRAPPIST-1 from the NASA Exoplanet Archive — I want to know the discovery year and method, orbital periods, planet radii and masses, equilibrium temperatures, and how far away it is in light years?

## When to prefer this

Choose this endpoint when you need structured, authoritative NASA Exoplanet Archive data about a specific known exoplanet or host star system — including orbital mechanics, physical dimensions, thermal properties, and stellar context. Prefer it over general web search when you need machine-readable, consistently formatted fields rather than prose descriptions. Best for applications needing discovery provenance (year, method, facility) alongside physical parameters in a single call.

## Known failure modes

- Planet or star name not found in the NASA Exoplanet Archive returns found:false with count:0 and empty planets array
- Misspelled or ambiguous planet names may return no results or unexpected matches
- Names with special characters or spaces may need exact formatting (e.g. 'Kepler-186 f' not 'Kepler186f')
- Newly discovered exoplanets not yet ingested into the archive will return no results
- HTTP 402 Payment Required if x402 payment header is missing or incorrect

## How this service works

Exoplanet Lookup (NASA Exoplanet Archive). Exoplanet lookup (NASA Exoplanet Archive) by planet or host star (TRAPPIST-1, Kepler-186 f, 51 Peg b): discovery year, method and facility, orbital period, radius and mass in Earths, equilibrium temperature, insolation, host star type and temperature, and distance in light years. Public domain.

## Output

Returns a JSON object with a 'found' boolean, a count of matching planets, and an array of planet objects. Each planet object includes discovery year, discovery method, discovery facility, orbital period, radius and mass in Earth units, equilibrium temperature, insolation flux, host star spectral type and effective temperature, and distance to the system in light years.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "name": {
       "type": "string",
       "description": "planet or host star name, e.g. TRAPPIST-1 or Kepler-186 f (query)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "found"
     ],
     "properties": {
      "count": {
       "type": "number"
      },
      "found": {
       "type": "boolean"
      },
      "planets": {
       "type": "array",
       "items": {
        "type": "object"
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-exoplanet-lookup-nasa-exoplanet-archive-76fa8fe1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)