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Weight & Mass Unit Converter
x402
Weight & Mass Unit Converter is a paid API for AI agents from 87-106-119-237.sslip.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Converts a non-negative weight or mass value between 11 common units (mg, g, kg, oz, lb, st, carat, tonne, short_ton, long_ton, ug) with deterministic precision.
Price / call$0.002
Success—
StatusUnknown
How this service works
Convert a non-negative weight or mass value between common units. Use this deterministic endpoint when an agent needs a precise unit conversion.
Output
Returns a JSON object containing the original value, source unit, target unit, and the converted result as a string — e.g. {"value": "175", "from_unit": "lb", "to_unit": "kg", "result": "79.3787"}
Example use cases
Recipe ingredient unit conversion
“I have a recipe that calls for 8 oz of flour but my kitchen scale only measures in grams — can you convert 8 oz to grams for me?”
Shipping weight calculation
“I need to know how many kilograms 2.5 short tons is — can you convert that for me so I can fill out the freight form?”
Gemstone weight in carats
“My jeweler says this diamond weighs 0.35 grams — how many carats is that?”
Technical details
Endpoint
GEThttps://87-106-119-237.sslip.io/api/convert-weightWhen to prefer
Use this endpoint when you need a deterministic, precise weight or mass unit conversion across common units including metric (mg, g, kg, tonne), imperial (oz, lb, st, short_ton, long_ton), and specialty units (carat, microgram). Prefer it over general-purpose LLM math when exactness matters (e.g. shipping, lab, cooking, jewelry). Avoid if the unit you need is not in the supported enum list.
Side effects
- Missing required query parameter (value, from_unit, or to_unit) returns an error
- Negative weight value rejected — only non-negative values accepted
- Invalid unit string not in the accepted enum returns an error
- Non-numeric value string causes a parsing error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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