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SignalDesk AI – Foot-per-Second to Mile-per-Second Converter
x402
SignalDesk AI – Foot-per-Second to Mile-per-Second 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 to miles per second 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 feet per second), the converted value (in miles per second as a double-precision float), the source and target unit labels, and the measurement dimension ('speed') along with the precision descriptor 'IEEE-754 double'.
Example use cases
Rocketry speed unit normalization
“I have a rocket's exhaust velocity measured at 5280 feet per second — can you convert that to miles per second for my calculations?”
Athletics pace conversion
“A sprinter ran at 32 feet per second during a race, what is that in miles per second?”
Physics homework speed conversion
“For my physics problem I need to express 1000 feet per second in miles per second — can you work that out?”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/units/speed/foot-per-second-to-mile-per-second?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, deterministic, pay-per-call conversion from feet per second to miles per second with IEEE-754 double precision and no rate-limit concerns. Prefer it over general-purpose math libraries when operating in an agent workflow that already integrates x402 micropayments and needs a simple, auditable unit-conversion microservice.
Side effects
- Missing or non-numeric 'value' query parameter returns an error or bad-request response
- Negative input value is rejected (minimum is 0 per schema)
- Value exceeding 1e+100 is rejected per schema maximum
- Payment not provided or insufficient triggers x402 payment-required response
- Network or Cloudflare Worker timeout on overloaded infrastructure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "mile-per-second",
"from": "foot-per-second",
"value": 123.45,
"converted": 0.02338068181818182,
"dimension": "speed",
"precision": "IEEE-754 double"
}
}Tags
x402
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