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SignalDesk AI – Foot-per-Second to Knot Converter
x402
SignalDesk AI – Foot-per-Second to Knot Converter is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Converts a speed value from feet per second (ft/s) to knots using IEEE-754 double-precision arithmetic
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
A JSON object containing the original value and unit ('foot-per-second'), the converted value in knots as a IEEE-754 double-precision float, the target unit label ('knot'), and the dimension label ('speed').
Example use cases
Aviation airspeed unit conversion
“My aircraft's airspeed sensor reads 250 feet per second — what is that in knots so I can cross-check with ATC?”
Maritime vessel speed check
“Our ship's log shows we're doing 18.5 feet per second; can you convert that to knots for the navigation report?”
Physics homework speed conversion
“I need to convert 60 feet per second to knots for my fluid dynamics problem set — can you calculate that precisely?”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/units/speed/foot-per-second-to-knot?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a reliable, paid, schema-validated ft/s-to-knot conversion with IEEE-754 precision guarantees — particularly in aviation, maritime, or scientific contexts where unit accuracy matters and a simple formula implementation is insufficient or untrusted.
Side effects
- Missing or non-numeric 'value' query parameter returns a validation error
- Negative input values rejected (minimum is 0)
- Values exceeding 1e+100 rejected by schema
- Network timeout on Cloudflare Worker cold start
- x402 payment failure if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "knot",
"from": "foot-per-second",
"value": 123.45,
"converted": 73.14212526997841,
"dimension": "speed",
"precision": "IEEE-754 double"
}
}Tags
x402
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