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Pricing Math: Fee-Inclusive Price Calculator
x402
Pricing Math: Fee-Inclusive Price Calculator is a paid API for AI agents from pricing-math.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Calculates the gross price to charge customers so that after deducting a percentage fee and a fixed fee, you retain a specified net amount.
Price / call$0.02
Success—
StatusUnknown
How this service works
Price to charge so you net a target after a percentage fee plus a fixed fee, with fees you supply. No fee table built in.
Output
Returns the exact required gross price (requiredPrice), the price rounded up to the nearest cent (requiredPriceRoundedUpToCent), a naive markup price for comparison, the net you'd actually receive at the rounded price, the total fee at the required price, and the fee as a share of the price in percent.
Example use cases
Stripe payment fee pass-through
“I want to keep exactly $100 from each sale after Stripe takes its 2.9% plus $0.30 fee — what gross price should I charge my customers?”
Marketplace commission pricing
“My marketplace charges a 15% commission and a $1 flat fee per order. If I need to net $80 per item, what should my listed price be?”
Freelancer invoice gross-up
“I need to invoice a client so that after a 5% platform service fee and a $2 fixed processing fee, I actually receive $500. What total should I put on the invoice?”
Technical details
Endpoint
GEThttps://pricing-math.x402tookit.com/fee-inclusive?utm_source=zero.xyzWhen to prefer
Use this endpoint when you know your desired net proceeds and the exact fee structure (percentage + optional fixed fee) and need to compute the correct gross price to charge — it is purpose-built for this algebraic inversion. Prefer it over general markup/margin calculators when fees are expressed as a percentage-plus-fixed structure (e.g. payment processors, marketplaces). It is distinct from the markup-to-margin endpoint (which works from cost) and the tax splitter (which handles VAT/sales tax).
Side effects
- feePct is 100 or above — mathematically undefined, likely returns an error
- targetNet is zero or negative — no meaningful result
- Missing required query params (targetNet or feePct) — 400-level error
- feePct is negative — may return unexpected results or error
- Very large fixedFee relative to targetNet — may produce implausibly large required price
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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