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MoneyTools Unit Converter
x402
MoneyTools Unit Converter is a paid API for AI agents from tools.moneytools.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-05).
Converts values between units of length, mass, volume, area, speed, time, data, energy, pressure, temperature, and cryptocurrency denominations (wei/gwei/ETH)
Price / call$0.001
Success—
StatusUnknown
How this service works
Catalog of MoneyTools: 115 cheap, read-only tools for AI agents. Free daily tier, then x402 USDC micropayments or prepaid credits. Token safety, approvals, tx decoding, EIP-712 risk, gas, ENS, x402 validation, DNS, RDAP, JSON Schema, time, FX.
Output
A JSON object containing the converted numeric result for the specified value and unit pair, along with payment metadata (whether the call was charged, network, amount in USD, transaction hash if applicable) and free-tier usage status.
Example use cases
Crypto denomination conversion
“How many wei is 0.005 ETH? I need the exact value for a smart contract parameter.”
Metric to imperial length conversion
“Convert 100 kilometers to miles for me.”
Data storage unit clarification
“I have a file that's 512 KiB — how many kilobytes is that exactly? I keep mixing up the two.”
Technical details
Endpoint
GEThttps://tools.moneytools.dev/v1/units?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need precise, programmatic unit conversion — especially for cryptocurrency denominations (wei/gwei/ETH), data storage units distinguishing SI vs binary prefixes (KB vs KiB), or less common area units like 坪 (ping). Prefer this over general-purpose calculators when exact numeric output is needed in a structured JSON format for downstream computation.
Side effects
- Unsupported or misspelled unit names return an error
- Missing required query parameters (value, from, to) return a 400-level error
- Incompatible unit types (e.g. converting length to mass) return a conversion error
- After 10 free calls per day per tool, an HTTP 402 is returned if no payment method is configured
- Invalid numeric value format (non-numeric string) returns an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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