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Steward ISS Position API
x402
Steward ISS Position API is a paid API for AI agents from pay.brianbooms.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-02).
Returns the International Space Station's current latitude, longitude, altitude, and velocity computed in real-time from public TLEs via SGP4 propagation
Price / call$0.01
Success—
StatusUnknown
How this service works
Use when an agent needs the ISS's position right now — latitude, longitude, altitude, and velocity propagated locally from public CelesTrak TLEs (SGP4), not a stale cached fix. Derived positions only; raw TLEs are never served. Optional format=geojson returns a GeoJSON Feature. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited.
Output
A JSON object (or GeoJSON Feature if format=geojson is requested) containing the ISS's current latitude, longitude, altitude (km), and velocity (km/s), propagated locally using SGP4 from the latest public CelesTrak TLEs at call time.
Example use cases
Live ISS map overlay
“Can you grab the ISS's current latitude, longitude, and altitude as a GeoJSON feature so I can pin it on my real-time world map?”
ISS visibility check for stargazers
“What's the ISS's current position — latitude, longitude, and altitude — so I can figure out if it's passing over my area right now?”
Orbital telemetry dashboard widget
“Fetch the current ISS coordinates including altitude and velocity in plain JSON so I can display them on my space-tracking dashboard.”
Technical details
Endpoint
GEThttps://pay.brianbooms.com/api/v1/data/iss-now?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fresh, propagated ISS position rather than a cached fix — it computes position locally via SGP4 at call time. Prefer it over generic ISS APIs when you need GeoJSON output directly or when freshness matters for near-real-time map overlays or pass predictions. It is a paid endpoint ($0.01 USDC via x402) so factor that in for high-frequency polling.
Side effects
- Stale TLE data if CelesTrak has not updated recently, leading to slightly inaccurate positions
- Payment failure or 402 response if USDC balance is insufficient
- Invalid format parameter value returns an error or falls back to default JSON
- Service downtime on pay.brianbooms.com returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| format | string | Optional: geojson for a GeoJSON Feature; omit for plain JSON. Example: geojson |
Tags
x402
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