ToolAssay

Simple statutory interest on a principal at the cited statutory-interest series

Simple statutory interest on a principal at the cited statutory-interest series rate (Actual/365 simple). A series with no numeric rate is refused free

Answeringour last check, 2026-10-10
1 of 1checks answered this week
1813 msmedian answer time
$0.05listed price per call
$0.05price 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://usaref.dev/v1/answers/statutory-interest

CategoryEverything else
Provider hostusaref.dev
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

DayResultHTTPAskedTime
2026-10-10 valid payment request 402$0.05 1813 ms

Example input (from the provider)

{
  "body": {
    "country": "bs",
    "days": 30,
    "principal": 1000
  },
  "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": {
            "country": {
              "description": "ISO country code that holds a statutory-interest series on this brand",
              "enum": [
                "bs",
                "ca",
                "cr",
                "do",
                "gt",
                "hn",
                "mx",
                "pa",
                "sv",
                "us"
              ],
              "type": "string"
            },
            "days": {
              "description": "Day-count days, finite and greater than 0. Supply this, or from and to. If both are sent they must agree.",
              "type": "number"
            },
            "from": {
              "description": "Period start, inclusive (YYYY-MM-DD, UTC). With `to`: day count is to \u2212 from. `to` is exclusive.",
              "format": "date",
              "type": "string"
            },
            "principal": {
              "description": "Principal in the country's own currency, finite and greater than 0",
              "type": "number"
            },
            "receipt": {
              "description": "Optional. true adds an Ed25519 answer receipt on a paid 200, incluedd in this price. Not a certified extract.",
              "type": "boolean"
            },
            "to": {
              "description": "Period end, exclusive (YYYY-MM-DD, UTC).",
              "format": "date",
              "type": "string"
            }
          },
          "required": [
            "country",
            "principal"
          ],
          "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": {
          "properties": {
            "day_count_basis": {
              "description": "actual/365_simple \u2014 no jurisdiction compounding",
              "type": "string"
            },
            "days": {
              "type": "number"
            },
            "disclaimer": {
              "type": "string"
            },
            "interest": {
              "description": "principal \u00d7 (rate/100) \u00d7 (days/365), rounded to 2 decimal places",
              "type": "number"
            },
            "limitations": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "principal": {
              "type": "number"
            },
            "provenance": {
              "description": "The statutory instrument the answer rests on: effective_from, last_confirmed, official source URL, notes",
              "type": "object"
            },
            "rate": {
              "description": "Headline statutory-interest series rate, percent, after derived materialization",
              "type": "number"
            },
            "rate_unit": {
              "type": "string"
            },
            "receipt": {
              "description": "Only when receipt=true on a paid 200. kind answer_receipt. Verify at /certified/public-key.",
              "type": "object"
            },
            "status": {
              "enum": [
                "ok"
              ],
              "type": "string"
            },
            "workings": {
              "type": "string"
            }
          },
          "required": [
            "status",
            "rate",
            "interest",
            "workings"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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