Compare the distribution of one categorical column between two datasets
Compare the distribution of one categorical column between two datasets. Reports a category that appeared - which a consumer switching exhaustively on the column has no branch for - a category that vanished, and shares that moved beyond a tolerance. Shares are proportions of all rows including empty ones, so a rising empty rate is visible rather than hidden by renormalisation.
Answers HTTP 429 without x402 payment termsour last check, 2026-10-04
0 of 1checks answered this week
n/amedian answer time
$0.14listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.zfinia.com/x402/v1/categorical-distribution-drift
| Category | Everything else |
|---|---|
| Provider host | api.zfinia.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | no x402 terms | 429 | 238 ms |
Example input (from the provider)
{
"body": {
"after": "status\nopen\nclosed\nclosed\nclosed\ndisputed\ndisputed\n",
"before": "status\nopen\nopen\nopen\nclosed\nclosed\nlegacy\n",
"column": "status",
"share_tolerance": 0.1
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"after": {
"maxLength": 262144,
"type": "string"
},
"before": {
"maxLength": 262144,
"type": "string"
},
"column": {
"maxLength": 256,
"type": "string"
},
"delimiter": {
"maxLength": 1,
"minLength": 1,
"type": "string"
},
"share_tolerance": {
"maximum": 1,
"minimum": 0,
"type": "number"
}
},
"required": [
"before",
"after",
"column"
],
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}