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Delx Commerce — Percent Return Calculator
x402
Delx Commerce — Percent Return Calculator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Calculates the percentage return (gain or loss) between a starting and ending value
Price / call$0.003
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 containing the original start value, end value, and the computed return_percent as a number (e.g. 10 for a 10% gain), along with a schema identifier string.
Example use cases
Stock trade return calculation
“I bought a stock at $45.50 and sold it at $62.75 — what was my percentage return on that trade?”
Portfolio performance measurement
“My portfolio started the year at $120,000 and is now worth $134,500. What's my percent return so far this year?”
Price increase analysis
“A product used to cost $8.99 and now costs $11.49. What's the percentage price increase?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/return-pct?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, verifiable, pay-per-call percent return calculation without writing your own math logic — ideal for agents that handle financial data, portfolio tracking, or price comparison and need an auditable, on-chain-paid utility function.
Side effects
- Missing start or end value results in a validation error
- Non-numeric inputs may cause a 400 bad request
- Division by zero if start value is 0
- Payment failure via x402 if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| end | number | Ending value for percent return. |
| start | number | Starting value for percent return. |
Output
Schema · Response
{
"type": "json",
"example": {
"end": 110,
"start": 100,
"schema": "delx/util-return-pct/v1",
"return_percent": 10
}
}Tags
x402
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