Api Endpoint

Sindri

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.

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/fireCalculator
MIME type
Not provided
First seen
2026-10-16T01:50:38.788Z
Last seen
Tags
FIRE calculator, retirement planning, financial independence

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
39 ms
Average latency
290 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": {
        "assetAllocations": {
          "description": "Optional multi-asset breakdown, e.g. [{name:\"Stocks\",percent:0.9,returnRate:0.08},{name:\"Cash\",percent:0.1,returnRate:0.005}] for a 90% stocks / 10% cash portfolio. Percentages must sum to 1 (within 1%). When provided, the weighted-average return replaces investmentReturnRate.",
          "items": {
            "properties": {
              "name": {
                "description": "Label for this asset class (e.g. \"Stocks\", \"Bonds\", \"Cash\", \"Other\"). Required.",
                "type": "string"
              },
              "percent": {
                "description": "Fraction of the portfolio in this asset class (0-1).",
                "type": "number"
              },
              "returnRate": {
                "description": "Expected annual return for this asset class, as a fraction.",
                "type": "number"
              }
            },
            "required": [
              "name",
              "percent",
              "returnRate"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "currentAge": {
          "description": "Your current age in years (0-100).",
          "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"
        },
        "employerMatchPercent": {
          "default": 0,
          "description": "Employer retirement-account match, as a fraction of pretaxAnnualIncome (0-1). Default 0.",
          "type": "number"
        },
        "incomeGrowthRate": {
          "default": 0,
          "description": "Expected annual (nominal) income growth rate, as a fraction. Default 0. Deflated by inflationRate before use, same as investmentReturnRate.",
          "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 (e.g. 0.07). Default 0.07. Ignored if assetAllocations is provided.",
          "type": "number"
        },
        "pretaxAnnualIncome": {
          "description": "Pre-tax annual salary, used only to compute employerMatchPercent. Default: same as currentAnnualIncome.",
          "type": "number"
        },
        "retirementAge": {
          "default": 67,
          "description": "Age at which you stop earning income and switch to drawing down retirementAnnualSpending each year (between currentAge and 100). Default 67.",
          "type": "number"
        },
        "retirementAnnualSpending": {
          "description": "Expected 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": {
            "assetAllocations": {
              "description": "Optional multi-asset breakdown, e.g. [{name:\"Stocks\",percent:0.9,returnRate:0.08},{name:\"Cash\",percent:0.1,returnRate:0.005}] for a 90% stocks / 10% cash portfolio. Percentages must sum to 1 (within 1%). When provided, the weighted-average return replaces investmentReturnRate.",
              "items": {
                "properties": {
                  "name": {
                    "description": "Label for this asset class (e.g. \"Stocks\", \"Bonds\", \"Cash\", \"Other\"). Required.",
                    "type": "string"
                  },
                  "percent": {
                    "description": "Fraction of the portfolio in this asset class (0-1).",
                    "type": "number"
                  },
                  "returnRate": {
                    "description": "Expected annual return for this asset class, as a fraction.",
                    "type": "number"
                  }
                },
                "required": [
                  "name",
                  "percent",
                  "returnRate"
                ],
                "type": "object"
              },
              "type": "array"
            },
            "currentAge": {
              "description": "Your current age in years (0-100).",
              "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"
            },
            "employerMatchPercent": {
              "default": 0,
              "description": "Employer retirement-account match, as a fraction of pretaxAnnualIncome (0-1). Default 0.",
              "type": "number"
            },
            "incomeGrowthRate": {
              "default": 0,
              "description": "Expected annual (nominal) income growth rate, as a fraction. Default 0. Deflated by inflationRate before use, same as investmentReturnRate.",
              "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 (e.g. 0.07). Default 0.07. Ignored if assetAllocations is provided.",
              "type": "number"
            },
            "pretaxAnnualIncome": {
              "description": "Pre-tax annual salary, used only to compute employerMatchPercent. Default: same as currentAnnualIncome.",
              "type": "number"
            },
            "retirementAge": {
              "default": 67,
              "description": "Age at which you stop earning income and switch to drawing down retirementAnnualSpending each year (between currentAge and 100). Default 67.",
              "type": "number"
            },
            "retirementAnnualSpending": {
              "description": "Expected 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"
}