Fat FIRE calculator
Fat FIRE calculator. Same year-by-year compound-growth simulation as the standard FIRE calculator, framed for a higher, more lifestyle-preserving retirement spending target.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
668 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.outpimp.com/fatFireCalculator
| Category | Everything else |
|---|---|
| Provider host | x402.outpimp.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.01 | 668 ms |
Example input (from the provider)
{
"body": {
"currentAge": 30,
"currentAnnualIncome": 300000,
"currentAnnualSpending": 150000,
"currentNetWorth": 700000,
"retirementAnnualSpending": 200000
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"currentAge": {
"description": "Your current age in years.",
"type": "number"
},
"currentAnnualIncome": {
"description": "Current annual take-home income.",
"type": "number"
},
"currentAnnualSpending": {
"description": "Current annual spending.",
"type": "number"
},
"currentNetWorth": {
"description": "Current invested net worth.",
"type": "number"
},
"inflationRate": {
"default": 0.03,
"description": "Expected annual inflation rate, as a fraction. Default 0.03.",
"type": "number"
},
"investmentReturnRate": {
"default": 0.07,
"description": "Expected annual investment return, as a fraction. Default 0.07.",
"type": "number"
},
"retirementAnnualSpending": {
"description": "Target (higher) annual spending in retirement.",
"type": "number"
},
"swr": {
"default": 0.04,
"description": "Safe withdrawal rate, as a fraction. Default 0.04.",
"type": "number"
}
},
"required": [
"currentAge",
"currentAnnualIncome",
"currentAnnualSpending",
"retirementAnnualSpending",
"currentNetWorth"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}