Api Endpoint

Saylor Innovations Radioactive

Radioactive decay calculator from initial amount, half-life and elapsed time - remaining amount and decay constant

Open interactive test console

Offering

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

Endpoint context

URL
https://saylorinnovations.com/api/radiation/decay
MIME type
Not provided
First seen
2026-10-16T01:51:51.176Z
Last seen
Tags
radiation, radioactive-decay, half-life, calculator

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": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7"
  }
]

Observed health

Status
Healthy
Latest latency
156 ms
Average latency
1042 ms
HTTP status
402
Last checked
Reachability
100% over 8 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": {
    "method": {
      "enum": [
        "GET",
        "POST",
        "PUT",
        "PATCH",
        "DELETE",
        "HEAD"
      ],
      "type": "string"
    },
    "queryParams": {
      "properties": {
        "elapsed": {
          "description": "required finite number greater than or equal to 0 (query)",
          "type": "string"
        },
        "half_life": {
          "description": "required finite number greater than 0 (query)",
          "type": "string"
        },
        "initial": {
          "description": "required finite number greater than 0 (query)",
          "type": "string"
        },
        "unit": {
          "description": "required unit label, 1-24 letters such as seconds, days, or years; use consistently (query)",
          "type": "string"
        }
      },
      "required": [
        "initial",
        "half_life",
        "elapsed",
        "unit"
      ],
      "type": "object"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "POST",
            "PUT",
            "PATCH",
            "DELETE",
            "HEAD"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "elapsed": {
              "description": "required finite number greater than or equal to 0 (query)",
              "type": "string"
            },
            "half_life": {
              "description": "required finite number greater than 0 (query)",
              "type": "string"
            },
            "initial": {
              "description": "required finite number greater than 0 (query)",
              "type": "string"
            },
            "unit": {
              "description": "required unit label, 1-24 letters such as seconds, days, or years; use consistently (query)",
              "type": "string"
            }
          },
          "required": [
            "initial",
            "half_life",
            "elapsed",
            "unit"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "decay_constant_per_unit": {
              "description": "Decay constant per unit",
              "type": "number"
            },
            "decayed_amount": {
              "description": "Decayed amount",
              "type": "number"
            },
            "elapsed": {
              "type": "number"
            },
            "formula": {
              "description": "Formula used for the calculation",
              "type": "string"
            },
            "half_life": {
              "description": "Half life",
              "type": "number"
            },
            "half_lives_elapsed": {
              "description": "Half lives elapsed",
              "type": "number"
            },
            "initial_amount": {
              "description": "Initial amount",
              "type": "number"
            },
            "mean_lifetime": {
              "description": "Mean lifetime",
              "type": "number"
            },
            "remaining_amount": {
              "description": "Remaining amount",
              "type": "number"
            },
            "remaining_fraction": {
              "description": "Remaining fraction",
              "type": "number"
            },
            "remaining_percent": {
              "description": "Remaining, as a percentage",
              "type": "number"
            },
            "scope_note": {
              "description": "What this data covers and what it leaves out",
              "type": "string"
            },
            "unit": {
              "description": "Unit of measure",
              "type": "string"
            }
          },
          "required": [
            "initial_amount",
            "half_life",
            "elapsed",
            "unit",
            "half_lives_elapsed",
            "remaining_amount",
            "decayed_amount",
            "remaining_percent",
            "scope_note"
          ],
          "type": "object"
        },
        "type": {
          "const": "json",
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}