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Ethereum Unit Converter (24K Labs)
x402
Ethereum Unit Converter (24K Labs) is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Converts amounts between Ethereum denominations (wei, kwei, mwei, gwei, szabo, finney, ether) using exact integer/decimal arithmetic with no floating-point errors.
Price / call$0.002
Success—
StatusUnknown
How this service works
Convert amounts between Ethereum denominations (wei, kwei, mwei, gwei, szabo, finney, ether) with exact integer/decimal math -- no float error.
Output
Returns the converted amount as an exact value (using integer or decimal math to avoid floating-point precision loss), along with the source and target denomination labels.
Example use cases
Gas fee display in DeFi dashboard
“I have a gas fee of 21000000000000 wei from a transaction — can you convert that to gwei so I can display it in a human-readable format?”
Smart contract value verification
“My smart contract returned 2500000000000000000 wei — convert that to ether so I can verify the user is being charged 2.5 ETH.”
Wallet UI denomination formatting
“The user entered 0.0025 ether in the send field. Convert that to wei so I can pass the exact integer value to the blockchain transaction.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/v1/eth-unit-convertWhen to prefer
Use this endpoint when you need precise, float-error-free Ethereum denomination conversions in agent workflows, smart contract UIs, transaction displays, or DeFi tooling. Prefer this over implementing conversion logic manually to avoid common floating-point precision bugs with large wei values.
Side effects
- Invalid denomination name provided — returns error indicating unsupported unit
- Non-numeric or malformed amount input — returns validation error
- Missing required fields (amount or unit) — returns 400-level error
- Negative or zero amounts may be rejected depending on validation rules
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| from | string | |
| value | string |
Output
Schema · Response
{
"type": "json",
"example": {
"wei": "1500000000000000000",
"result": "1500000000"
}
}Tags
x402
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