APIs › Business & Financial Calculators › Quotation Calculator

Quotation Calculator

Builds a quotation with cost, margin or markup pricing per line, optional validity period and full decimal totals.

POST /v1/business/quotation-calculate $0.01 per call

Specification

Endpoint

POST /v1/business/quotation-calculate

Price

$0.01 per call · tier standard_data

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · scheme exact

Data source

Deterministic decimal arithmetic on caller-supplied input

Timeout

15 seconds

Max request

256 KB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/business/quotation-calculate" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "currency": "USD",
  "lines": [
    {
      "index": 0,
      "description": "Hardware",
      "quantity": "5",
      "cost_per_unit": "800",
      "unit_price": "1066.67",
      "pricing_method": "margin_percent",
      "line_cost": "4000.00",
      "line_price": "5333.35",
      "line_profit": "1333.35",
      "achieved_margin_percent": "25.000234"
    },
    {
      "index": 1,
      "description": "Installation",
      "quantity": "1",
      "cost_per_unit": "1200",
      "unit_price": "1680.00",
      "pricing_method": "markup_percent",
      "line_cost": "1200.00",
      "line_price": "1680.00",
      "line_profit": "480.00",
      "achieved_margin_percent": "28.571429"
    }
  ],
  "totals": {
    "total_cost": "5200.00",
    "subtotal": "7013.35",
    "total_profit": "1813.35",
    "blended_margin_percent": "25.856",
    "tax": "0.00",
    "grand_total": "7013.35"
  },
  "validity": {
    "days": 30,
    "expires_at": "<varies per call>"
  },
  "margin_vs_markup": "Margin is profit as a share of selling price; markup is profit as a share of cost. The achieved margin is recomputed per line so the two cannot be confused."
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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