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EVM Unit Converter — Parse and Format Token Amounts
x402
EVM Unit Converter — Parse and Format Token Amounts is a paid API for AI agents from agentresolver.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-18).
Converts EVM token amounts between human-readable decimal and raw base-unit (wei-style) representations for any token with a specified decimal precision.
Price / call$0.005
Success—
StatusUnknown
How this service works
Verify an x402 endpoint before paying: live payTo, USDC quote, network, asset, resource binding, TLS and endpoint safety for $0.001 on Base or Solana.
Output
Returns a JSON object echoing back the mode, input value, and decimals, along with the converted result as a string and a resultKind field indicating whether the output is in 'base-units' (raw integer) or 'decimal' (human-readable) form.
Example use cases
Smart contract token transfer preparation
“I need to send 250 USDC on-chain. Can you convert 250 to its raw integer amount using 6 decimals in parse mode so I can pass it to the contract?”
Display balance from raw blockchain data
“My wallet is showing a raw balance of 1000000000000000000 for an 18-decimal token — can you format that to a human-readable decimal so I know how much ETH-equivalent I actually have?”
DeFi amount validation before signing
“Before I approve this transaction, convert 0.005 WBTC (8 decimals) to base units in parse mode so I can verify the contract is asking for the right amount.”
Technical details
Endpoint
POSThttps://agentresolver.vercel.app/api/evm-unitsWhen to prefer
Use this endpoint when you need a reliable, on-demand conversion between human-readable token amounts and raw EVM base units for any ERC-20 or EVM-compatible token, especially when the token's decimal count varies (e.g. USDC=6, ETH=18, WBTC=8). Prefer this over custom code when working in agent pipelines where introducing arithmetic errors in payment or transfer amounts would be costly.
Side effects
- Invalid mode value (not 'parse' or 'format') returns validation error
- Non-numeric value string causes conversion failure
- Decimals outside 0–255 range rejected by schema
- Floating point precision edge cases may produce unexpected string results
- Payment of 0.005 USDC required per call; missing or invalid payment returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | string | |
| value | string | |
| decimals | integer |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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