Index onlineMerchant portal
Api Endpoint

Sindri

Coast FIRE calculator. Computes the lump sum needed today, invested with zero further contributions, to grow into your full retirement number by your target retirement age, plus (given an ongoing monthly contribution) a year-by-year projection of when your actual trajectory crosses that lump sum.

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/coastFireCalculator
MIME type
Not provided
First seen
2026-10-16T01:50:38.788Z
Last seen
Tags
coast 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
53 ms
Average latency
134 ms
HTTP status
405
Last checked
Reachability
100% over 13 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"
        },
        "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"
        },
        "monthlyContribution": {
          "default": 0,
          "description": "Ongoing monthly contribution toward currentNetWorth. Default 0.",
          "type": "number"
        },
        "retirementAge": {
          "default": 67,
          "description": "Target traditional retirement age. 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",
        "currentNetWorth",
        "retirementAnnualSpending"
      ],
      "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"
            },
            "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"
            },
            "monthlyContribution": {
              "default": 0,
              "description": "Ongoing monthly contribution toward currentNetWorth. Default 0.",
              "type": "number"
            },
            "retirementAge": {
              "default": 67,
              "description": "Target traditional retirement age. 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",
            "currentNetWorth",
            "retirementAnnualSpending"
          ],
          "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"
}