Probability density or mass, cumulative probability and quantiles for normal, bi
Probability density or mass, cumulative probability and quantiles for normal, binomial, Poisson and Student t distributions.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
693 msmedian answer time
$0.02listed price per call
$0.02price 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://math-stats.x402tookit.com/distribution
| Category | Everything else |
|---|---|
| Provider host | math-stats.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 693 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"dist": "normal",
"x": 1.96
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"df": {
"description": "t degrees of freedom",
"type": "number"
},
"dist": {
"description": "normal, binomial, poisson or t",
"type": "string"
},
"lambda": {
"description": "Poisson rate",
"type": "number"
},
"mean": {
"description": "Normal mean (default 0)",
"type": "number"
},
"n": {
"description": "Binomial trials",
"type": "number"
},
"p": {
"description": "Probability for a quantile (normal and t only), 0 to 1",
"type": "number"
},
"prob": {
"description": "Binomial success probability",
"type": "number"
},
"sd": {
"description": "Normal standard deviation (default 1)",
"type": "number"
},
"x": {
"description": "Value (k for binomial and poisson)",
"type": "number"
}
},
"required": [
"dist"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"cdf": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"distribution": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"parameters": {
"properties": {
"mean": {
"type": [
"null",
"number"
]
},
"sd": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"pdf": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"survival": {
"type": [
"null",
"number"
]
},
"twoSidedTailProbability": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"x": {
"type": [
"null",
"number"
]
},
"zScore": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}