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Unit Converter
x402
Unit Converter is a paid API for AI agents from x402.agentindex.world, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).
Converts a numeric value from one unit of measurement to another (e.g., miles to kilometers, Fahrenheit to Celsius)
Price / call$0.001
Success—
StatusUnknown
How this service works
Convert a value between units of length, mass, volume or temperature (C/F/K).
Output
Returns a JSON object with the converted numeric value and the target unit label (e.g., {"unit": "km", "value": 1.609344})
Example use cases
Running distance conversion
“I just ran 10 kilometers — how many miles is that?”
Cooking recipe unit swap
“My recipe calls for 250 milliliters of milk, but I only have a measuring cup in fluid ounces — how much is that?”
Temperature unit conversion
“It's going to be 38 degrees Celsius tomorrow — what is that in Fahrenheit?”
Technical details
Endpoint
GEThttps://x402.agentindex.world/unit/convert?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to perform a quick, pay-per-call unit conversion without setting up a local library — ideal for one-off conversions in automated pipelines where accuracy and low latency matter and the x402 micropayment model is already in use.
Side effects
- Unsupported or unrecognized unit strings return an error
- Incompatible unit categories (e.g., converting miles to kilograms) return an error
- Missing required parameters (value, from_unit, to_unit) result in a bad request
- Malformed numeric value (non-numeric input) causes a validation failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| value | number | |
| to_unit | string | |
| from_unit | string |
Output
Schema · Response
{
"type": "json",
"example": {
"unit": "km",
"value": 1.609344
}
}Tags
x402
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