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SignalDesk AI – Foot to Millimeter Converter
x402
SignalDesk AI – Foot to Millimeter 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 numeric length value from international feet to millimeters 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
Returns a JSON object with the original value in feet, the converted value in millimeters, the source and target unit labels, the dimension ('length'), and a precision note ('IEEE-754 double'). Example: {from: 'foot', to: 'millimeter', value: 123.45, converted: 37627.56, dimension: 'length', precision: 'IEEE-754 double'}.
Example use cases
Engineering blueprint dimension conversion
“I need to convert 12.75 feet to millimeters for a structural drawing — can you do that?”
Sports measurement metric conversion
“The long jump record is 29.4 feet — what is that in millimeters?”
Manufacturing part specification conversion
“Our part spec says 0.083 feet — convert that to millimeters so I can enter it in the metric CAD system.”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/units/length/foot-to-millimeter?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a reliable, deterministic foot-to-millimeter conversion with IEEE-754 double precision and a structured JSON response. It is well-suited for programmatic pipelines, engineering tools, or agent workflows that need guaranteed numeric precision and a bounded execution environment. Prefer alternatives if you need batch conversion, bidirectional unit lookup, or support for other unit pairs.
Side effects
- Missing 'value' query parameter returns a validation error
- Negative input values are rejected (minimum: 0)
- Extremely large values may lose floating-point precision beyond IEEE-754 double range
- Non-numeric input for value causes schema validation failure
- Payment failure (x402) results in 402 response before conversion is attempted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "millimeter",
"from": "foot",
"value": 123.45,
"converted": 37627.56,
"dimension": "length",
"precision": "IEEE-754 double"
}
}Tags
x402
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