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SignalDesk AI – Kilometer to Foot Converter
x402
SignalDesk AI – Kilometer to Foot 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 2026-10-09).
Converts a numeric length value from kilometers to feet 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 in kilometers, the converted result in feet as a double-precision float, the source unit ('kilometer'), the target unit ('foot'), the dimension type ('length'), and a precision note ('IEEE-754 double').
Example use cases
Marathon distance in feet
“How many feet is 42.195 kilometers? I need the marathon distance converted to feet.”
Engineering project measurement conversion
“Convert 3.5 kilometers to feet for a bridge specification I'm working on.”
Hiking trail length conversion
“The trail is listed as 8 kilometers — can you tell me how long that is in feet?”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/units/length/kilometer-to-foot?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, precise, single-value kilometer-to-foot conversion with a structured JSON response. It is purpose-built for this specific unit pair, so prefer it over general-purpose math or LLM-based conversion when deterministic IEEE-754 precision and a machine-readable result are required.
Side effects
- Missing or non-numeric 'value' query parameter returns an error
- Negative values are rejected (minimum: 0)
- Values exceeding 1e+100 are rejected (maximum enforced by schema)
- Non-GET HTTP methods return 405
- Payment not provided or insufficient USDC results in 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "foot",
"from": "kilometer",
"value": 123.45,
"converted": 405019.68503937,
"dimension": "length",
"precision": "IEEE-754 double"
}
}Tags
x402
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