Index onlineMerchant portal
Api Endpoint

Sindri

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.

Open interactive test console

Offering

Provider
ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Financial Analysis
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/fatFireCalculator
MIME type
Not provided
First seen
2026-10-16T01:50:38.788Z
Last seen
Tags
fat FIRE, retirement planning, financial independence

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x548eFd4f4d4A5C3669dbb4CBB2B1A637FeeEc5F6"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "APer2AbhckyMWyJanW2MZ2eRLcpL9Lmhks8rkmXfqjRG"
  }
]

Observed health

Status
Reachable
Latest latency
25 ms
Average latency
44 ms
HTTP status
405
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "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 schema

{
  "$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"
}