# Services from space-objects.x402tookit.com on Zero

> space-objects.x402tookit.com serves 10 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/space-objects.x402tookit.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/space-objects.x402tookit.com/health.json

## Services

- [Space Objects – JPL Sentry Impact Risk Lookup](https://www.zero.xyz/c/space-objects-jpl-sentry-impact-risk-lookup-2d3b9722/llms.txt): $0.02/call via x402. Checks whether a specific asteroid is on the JPL Sentry impact-risk list and returns its impact probability, Palermo scale, Torino scale, size, and likeliest impact dates.
- [Space Objects – Small Body Lookup](https://www.zero.xyz/c/space-objects-small-body-lookup-c3e114bc/llms.txt): $0.02/call via x402. Retrieves orbital mechanics, physical properties, NEO/hazardous flags, MOID, and discovery data for a named asteroid or comet.
- [Space Objects - Body Close Approaches](https://www.zero.xyz/c/space-objects-body-close-approaches-31f01148/llms.txt): $0.02/call via x402. Returns past and future Earth close-approach events for a specific asteroid or comet by designation, with distances, dates, and uncertainty data.
- [JPL Sentry Impact Risk Table](https://www.zero.xyz/c/jpl-sentry-impact-risk-table-51d3a948/llms.txt): $0.02/call via x402. Returns JPL Sentry-monitored near-Earth objects above a Palermo-scale threshold, with impact probability, Torino level, size, and potential impact years.
- [Space Objects: Orbital Period Calculator (Kepler's Third Law)](https://www.zero.xyz/c/space-objects-orbital-period-calculator-kepler-s-third-law-14b1bd54/llms.txt): $0.02/call via x402. Calculates orbital period from semi-major axis using Kepler's third law, and optionally returns perihelion, aphelion, and orbital speeds given eccentricity.
- [Space Objects Distance Converter](https://www.zero.xyz/c/space-objects-distance-converter-e6cb9237/llms.txt): $0.02/call via x402. Converts a distance value between kilometres, miles, astronomical units, and lunar distances, and returns the equivalent light travel time in seconds.
- [Space Objects – Asteroid Diameter from Absolute Magnitude](https://www.zero.xyz/c/space-objects-asteroid-diameter-from-absolute-magnitude-324112d3/llms.txt): $0.02/call via x402. Calculates asteroid diameter in meters and kilometers from absolute magnitude H and albedo, with optional impact energy in megatons
- [Space Objects Close Approaches](https://www.zero.xyz/c/space-objects-close-approaches-86acfb45/llms.txt): $0.02/call via x402. Returns asteroids and comets passing Earth within a configurable lunar-distance limit over a specified recent or upcoming day window, with distance, speed, and size data.
- [Space Objects Fireball Events](https://www.zero.xyz/c/space-objects-fireball-events-47cad308/llms.txt): $0.02/call via x402. Returns recorded fireball (bolide) events detected by US sensors, including time, location, altitude, speed, and impact energy, sorted newest first.
- [Space Objects: Impact Scale Calculator (Torino & Palermo)](https://www.zero.xyz/c/space-objects-impact-scale-calculator-torino-palermo-d1a12a5c/llms.txt): $0.02/call via x402. Explains Torino scale levels or computes Palermo scale value from impact probability, energy in megatons, and years until impact.

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)