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Delx Commerce — Base USDC Decimal Rounding
x402
Delx Commerce — Base USDC Decimal Rounding is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Validates and normalizes a USDC amount string to 6-decimal Base USDC precision, returning the rounded value and conformance result.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with the raw integer USDC amount, the formatted decimal string, a boolean indicating whether the amount fits within 6 decimal places, the number of fractional digits, and a verifiable evidence block including input hash and confirmation that no data is retained and no external calls were made.
Example use cases
Pre-flight check before USDC transfer
“I'm about to send 1.0000001 USDC on Base — can you verify if that amount is representable with 6 decimal places and what the exact rounded value will be?”
Validating agent-generated payment amount
“My agent calculated a fee of 0.0000001234 USDC — check whether that fits into Base USDC's 6-decimal precision before I try to submit the transaction.”
Normalizing user-entered token amount
“A user typed in '2.500000000001' as their USDC amount — can you normalize it to the 6-decimal Base USDC format and tell me if it conforms?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/base-usdc-decimal-rounding?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to preflight-check or normalize a USDC amount before submitting an EVM transaction on Base, especially when deterministic, auditable rounding with verifiable delivery is required. Prefer it over manual calculation when you need a signed evidence record confirming no data retention.
Side effects
- Invalid or non-numeric amount string returns an error
- Amount string exceeding 8192 characters rejected
- Malformed JSON body returns 400
- Payment not received results in 402 response blocking execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| amount | string | Amount supplied to Base USDC Decimal Rounding; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"raw": "1000",
"amount": "0.001000",
"fits_six_decimals": true,
"fractional_digits": 6
},
"schema": "delx/util-base-usdc-decimal-rounding/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "7df2f11804e0c841c0289c3480df8b5b401744e62702bb9731b22eaac70967ab",
"external_calls": 0
},
"operation": "evm_preflight:base_usdc_decimal_rounding"
}
}Tags
x402
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