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Coinlight Unit Converter
x402
Coinlight Unit Converter is a paid API for AI agents from coinlight-app.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Converts cryptocurrency amounts between human-readable and atomic units for SOL/lamports, ETH/gwei/wei, USDC, and any custom decimal token — bigint-safe.
Price / call$0.005
Success—
StatusUnknown
How this service works
Coinlight charges USDC per API call with the x402 protocol on Solana and Base.
Output
Returns a JSON object with the converted amount in the target unit(s), e.g. the lamport count for a given SOL amount, or the wei equivalent of an ETH value. The result is bigint-safe, meaning full integer precision without floating-point rounding errors, along with metadata identifying the endpoint.
Example use cases
Prepare Solana transaction amount
“I need to send 0.75 SOL in a transaction but the program expects lamports — convert 0.75 SOL to lamports for me.”
Parse ETH gas fee in human units
“I got back a gas fee of 21000000000 gwei from a transaction — convert that to ETH so I can display it to the user.”
USDC DeFi contract amount encoding
“I want to deposit 50 USDC into a smart contract that takes atomic units with 6 decimals — what's 50 USDC in usdc_atomic?”
Technical details
Endpoint
GEThttps://coinlight-app.vercel.app/p/units-convert?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need exact, bigint-safe conversion between cryptocurrency denominations — especially for Solana (SOL/lamports), Ethereum (ETH/gwei/wei), or USDC and other SPL tokens with configurable decimals. Prefer it over manual math when floating-point precision errors would corrupt a transaction amount or contract call.
Side effects
- Missing required 'amount' or 'from' query parameter returns an error
- Unsupported unit type not in the enum returns an error
- Non-numeric 'amount' string causes a parse error
- Missing 'decimals' when using 'units' or 'atomic' from-type may default to 6 or error
- Very large numbers beyond safe integer range may cause unexpected behavior if not handled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"endpoint": "Crypto unit converter"
}
}Tags
x402
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