PAY-PER-CALL API · USDC SOLANA · NO ACCOUNT

Catch a bad quote
before it costs you.

ProfitKit Quote API turns labor, materials, overhead, payment fees and risk into a defensible price floor. The free endpoint checks margin; the paid endpoint returns a complete three-option proposal.

Run the free checkRead API docs

Deterministic formulas · JSON output · No customer data stored · ES/EN-ready proposal structure

POST /api/v1/quote-check
{
  "quoted": {
    "price": 840,
    "profit": 174.16,
    "marginPct": 21.37,
    "status": "margin_risk"
  },
  "guardrails": {
    "breakEven": 660.45,
    "recommendedListPrice": 880.60
  }
}
FREE CHECK$0.49 PROPOSAL PACKUSDC · SOLANAHTTP 402

LIVE FREE ENDPOINT

Use your numbers. See every guardrail.

The demo calls the public JSON endpoint. It does not request a wallet or store the inputs.

REPRODUCIBLE DEMO$840 quote

Change the inputs and run the same deterministic engine exposed by the API.

DEVELOPER-FIRST

One free endpoint. One paid result.

FREEPOST /api/v1/quote-check

Cost basis, break-even, target-margin price, quote status and warnings.

curl · free check
curl -X POST https://profit-kit-trc20.cpc-luishuerta.chatgpt.site/api/v1/quote-check \
  -H "content-type: application/json" \
  -d '{"hours":12,"hourlyCost":25,"materials":180,"travel":40,"overheadPct":12,"targetMarginPct":25,"riskPct":10,"quotedPrice":840}'

Paid clients receive HTTP 402 payment requirements and retry with a signed payment. The server never receives the buyer's private key.

EVIDENCE, NOT TESTIMONIALS

Trust the calculation you can reproduce.

01

Explicit formula

Every result exposes labor, materials, overhead, risk reserve, payment fee and target margin.

02

Versioned output

Responses include an engine version so integrations can detect future changes.

03

Offline counterpart

The Business Bundle provides editable spreadsheet versions for human review and client work.

TWO PRODUCTS · ONE ENGINE

Automate the check. Keep the editable toolkit.

Use the API for workflows and agents, or buy the five-file Business Bundle for 9 USD.

Get the Business Bundle · 9 USD