$0.01
per call · USD Coin on Base
FIRE (Financial Independence, Retire Early) calculator. Projects year-by-year net worth growth to determine how many years until your portfolio can sustainably fund retirement spending at a given safe withdrawal rate — precise compound-growth simulation an LLM cannot reliably run mentally. incomeGrowthRate is deflated by inflationRate internally. Past retirementAge the simulation draws down retirementAnnualSpending with no further income.
Endpoint
POST https://x402.outpimp.com/fireCalculator3
Calls / 30d
1
Unique payers / 30d
Aug 30
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://x402.outpimp.com/fireCalculator", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"currentAge": 30,
"currentAnnualIncome": 80000,
"currentAnnualSpending": 50000,
"currentNetWorth": 200000,
"retirementAnnualSpending": 40000
}),
});
const data = await res.json();curl -X POST \
"https://x402.outpimp.com/fireCalculator" \
-H "Content-Type: application/json" \
-d '{"currentAge":30,"currentAnnualIncome":80000,"currentAnnualSpending":50000,"currentNetWorth":200000,"retirementAnnualSpending":40000}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"data": {
"fireNumber": 1000000,
"netWorthTrajectory": [
{
"netWorth": 200000,
"year": 0
}
],
"params": {
"currentAge": 30,
"currentAnnualIncome": 80000,
"currentAnnualSpending": 50000,
"currentNetWorth": 200000,
"employerMatchPercent": 0,
"incomeGrowthRate": 0,
"inflationRate": 0.03,
"investmentReturnRate": 0.07,
"pretaxAnnualIncome": 80000,
"retirementAge": 67,
"retirementAnnualSpending": 40000,
"swr": 0.04
},
"projectedAge": 57,
"yearsToFI": 27
},
"ok": true
}Payment details
0x548efd4f4d4a5c3669dbb4cbb2b1a637feeec5f6USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Developer Tools and the homepage with a featured placement.
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