Radioactive decay calculator from initial amount, half-life and elapsed time
Radioactive decay calculator from initial amount, half-life and elapsed time - remaining amount and decay constant
Answeringour last check, 2026-10-18
1 of 1checks answered this week
427 msmedian answer time
$0.01listed price per call
$0.01price 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
GET https://saylorinnovations.com/api/radiation/decay
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.01 | 427 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"elapsed": "90",
"half_life": "30",
"initial": "100",
"unit": "years"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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"
}