# Services from aviation-calc.x402tookit.com on Zero

> aviation-calc.x402tookit.com serves 9 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/aviation-calc.x402tookit.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/aviation-calc.x402tookit.com/health.json

## Services

- [Aviation Calculators – Fuel, Time & Distance (E6B)](https://www.zero.xyz/c/aviation-calculators-fuel-time-distance-e6b-50a0339e/llms.txt): $0.02/call via x402. Solves E6B flight computer arithmetic for any two of distance, groundspeed, and time, plus fuel burn, reserve fuel, and range calculations.
- [Aviation Glide Ratio Calculator](https://www.zero.xyz/c/aviation-glide-ratio-calculator-2ca0dfcd/llms.txt): $0.02/call via x402. Calculates glide distance, time, and sink rate from altitude above ground, glide ratio, and optional airspeed and wind components.
- [Aviation Calculators – True Airspeed, Mach & Equivalent Airspeed](https://www.zero.xyz/c/aviation-calculators-true-airspeed-mach-equivalent-airspeed-a0871f75/llms.txt): $0.02/call via x402. Calculates true airspeed (TAS), Mach number, and equivalent airspeed (EAS) from calibrated airspeed, pressure altitude, and outside air temperature.
- [Aviation Density Altitude Calculator](https://www.zero.xyz/c/aviation-density-altitude-calculator-661de54e/llms.txt): $0.02/call via x402. Calculates density altitude (exact and rule-of-thumb) from field elevation, altimeter setting, and outside air temperature, with a performance flag.
- [Aviation Wind Triangle Calculator (E6B)](https://www.zero.xyz/c/aviation-wind-triangle-calculator-e6b-744db5c0/llms.txt): $0.02/call via x402. Computes E6B wind triangle solutions: wind correction angle and heading/groundspeed for a given course, or track and groundspeed for a given heading flown.
- [Aviation Turn & Hold Pattern Calculator](https://www.zero.xyz/c/aviation-turn-hold-pattern-calculator-7fa36e21/llms.txt): $0.02/call via x402. Computes turn rate, radius, bank angle, and load factor from true airspeed, plus holding pattern leg length, width, and time.
- [Aviation Wind Components Calculator](https://www.zero.xyz/c/aviation-wind-components-calculator-25ec9cd5/llms.txt): $0.02/call via x402. Calculates headwind/tailwind and left/right crosswind components from wind direction, speed, and runway heading, including gust components and crosswind limit comparison.
- [Aviation Calculators – ISA Atmosphere](https://www.zero.xyz/c/aviation-calculators-isa-atmosphere-8366f7b0/llms.txt): $0.02/call via x402. Returns International Standard Atmosphere properties at a given pressure altitude: temperature, pressure, density, speed of sound, and optional ISA deviation from actual OAT.
- [Aviation Pressure Altitude Calculator](https://www.zero.xyz/c/aviation-pressure-altitude-calculator-af935b6a/llms.txt): $0.02/call via x402. Calculates pressure altitude from field elevation and altimeter setting (inHg or hPa), returning both the exact ISA result and the 1000 ft/inHg rule-of-thumb approximation.

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

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