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Api Endpoint

Saylor Innovations Irregular Ca

Calculate annualized XIRR for dated, irregular cash flows supplied as JSON, returning dates, count, net cash flow, day span, decimal and percentage return, NPV residual, formula, convergence method, and a clear mathematical-not-investment-advice scope note.

Open interactive test console

Offering

Provider
saylorinnovations.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Financial Analysis
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://saylorinnovations.com/api/finance/xirr
MIME type
application/json
First seen
2026-10-16T01:51:51.176Z
Last seen
Tags
Finance, xirr, cagr, rule-of-72, cashflow

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: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3
0.01 USDC
Atomic price: 10000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 4
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 5
10000 atomic units
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB · Scheme: exact
Payment option 6
103158 atomic units
Atomic price: 103158 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: So11111111111111111111111111111111111111112 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "10000",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "10000",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
    "amount": "10000",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "So11111111111111111111111111111111111111112",
    "amount": "103158",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7"
  }
]

Observed health

Status
Healthy
Latest latency
156 ms
Average latency
326 ms
HTTP status
402
Last checked
Reachability
100% over 10 checks

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

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "cashflows": {
          "type": "string",
          "description": "required URL-encoded JSON array such as [{\"amount\":-1000,\"date\":\"2025-01-01\"},{\"amount\":1100,\"date\":\"2026-03-01\"}] (query)"
        }
      },
      "required": [
        "cashflows"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "json"
    },
    "example": {
      "type": "object",
      "properties": {
        "found": {
          "type": "boolean",
          "description": "True when the lookup matched a record"
        },
        "cashflow_count": {
          "type": "number",
          "description": "Number of cashflow"
        },
        "first_date": {
          "type": "string",
          "description": "First date"
        },
        "last_date": {
          "type": "string",
          "description": "Last date"
        },
        "net_cashflow": {
          "type": "number",
          "description": "Net cashflow"
        },
        "xirr_decimal": {
          "type": "number",
          "description": "Xirr decimal"
        },
        "xirr_percent": {
          "type": "number",
          "description": "Xirr, as a percentage"
        },
        "day_span": {
          "type": "number",
          "description": "Day span"
        },
        "npv_at_xirr": {
          "type": "number",
          "description": "Npv at xirr"
        },
        "formula": {
          "type": "string",
          "description": "Formula used for the calculation"
        },
        "convergence": {
          "type": "string"
        },
        "scope_note": {
          "type": "string",
          "description": "What this data covers and what it leaves out"
        }
      },
      "required": [
        "found",
        "cashflow_count",
        "first_date",
        "last_date",
        "xirr_percent",
        "formula",
        "scope_note"
      ]
    }
  },
  "required": [
    "type"
  ]
}