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Unit Converter API (klymax402)
x402
Unit Converter API (klymax402) is a paid API for AI agents from unit-converter.api.klymax402.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Converts a numeric value from one measurement unit to another across categories like length, weight, temperature, volume, speed, and data.
Price / call$0.003
Success—
StatusUnknown
How this service works
Convert a value between measurement units
Output
The agent receives the converted numeric value in the requested target unit, given the source value and unit provided.
Example use cases
Convert recipe volume measurements
“Can you convert 3.5 cups to milliliters for me? I'm scaling up a recipe and need the exact amount.”
Calculate international shipping weight
“I need to know how many pounds 12.5 kilograms is — I'm filling out a shipping form that only accepts pounds.”
Compare driving speeds across countries
“If I'm driving at 110 kilometers per hour, what is that in miles per hour? I want to know how fast that feels in American speed terms.”
Technical details
Endpoint
GEThttps://unit-converter.api.klymax402.com/api/convertWhen to prefer
Use this endpoint when you need a quick, programmatic unit conversion across common measurement categories (length, weight, temperature, volume, speed, data). Prefer this over manual formulas or LLM-generated math when accuracy and reliability matter.
Side effects
- Unsupported or misspelled unit strings return an error or null result
- Incompatible unit categories (e.g. converting kg to miles) return an error
- Missing required fields (value, from, or to) result in a 400 bad request
- Non-numeric value input causes a validation error
- Payment failure or insufficient funds returns a 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | Target unit (e.g. mi, kg, fahrenheit, gal, km/h, GB) |
| from | string | Source unit (e.g. km, lb, celsius, l, mph, MB) |
| value | number | The numeric value to convert |
| category | string | Optional category hint: length, weight, temperature, volume, speed, data |
Tags
x402
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