Use this service before importing CSV to check data quality
Use this service before importing CSV to check data quality: missing cells, duplicate rows, required columns and declared string, integer, number, boolean or date types. Provide raw CSV with unique headers; comma, semicolon and tab delimiters supported. Max 1 MiB UTF-8, 10000 data rows and 100 columns. No URL fetching. Invalid business data returns valid=false.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
881 msmedian answer time
$0.003listed price per call
$0.003price 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.coregroupimmo.com/v1/csv/analyze
| Category | Everything else |
|---|---|
| Provider host | api.coregroupimmo.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.003 | 881 ms |
Example input (from the provider)
{
"body": {
"requiredColumns": [
"name"
],
"text": "name,age\nAlice,30",
"types": {
"age": "integer"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"delimiter": {
"enum": [
",",
";",
"\t"
],
"type": "string"
},
"requiredColumns": {
"items": {
"maxLength": 256,
"minLength": 1,
"type": "string"
},
"maxItems": 100,
"type": "array",
"uniqueItems": true
},
"text": {
"description": "Raw CSV, at most 1 MiB UTF-8, 10000 data rows, 100 columns; unique non-empty headers.",
"maxLength": 1048576,
"type": "string"
},
"types": {
"additionalProperties": {
"enum": [
"string",
"integer",
"number",
"boolean",
"date"
],
"type": "string"
},
"maxProperties": 100,
"propertyNames": {
"maxLength": 256,
"minLength": 1,
"not": {
"enum": [
"__proto__",
"constructor",
"prototype"
]
},
"type": "string"
},
"type": "object"
}
},
"required": [
"text"
],
"type": "object"
},
"bodyType": {
"const": "json",
"type": "string"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"additionalProperties": false,
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"result": {
"additionalProperties": false,
"properties": {
"counts": {
"additionalProperties": {
"minimum": 0,
"type": "integer"
},
"type": "object"
},
"errors": {
"items": {
"additionalProperties": false,
"properties": {
"code": {
"type": "string"
},
"column": {
"minimum": 0,
"type": "integer"
},
"row": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"code"
],
"type": "object"
},
"maxItems": 20,
"type": "array"
},
"truncated": {
"type": "boolean"
},
"valid": {
"type": "boolean"
}
},
"required": [
"valid",
"counts",
"errors",
"truncated"
],
"type": "object"
},
"service": {
"const": "core-csv-analyzer",
"type": "string"
}
},
"required": [
"service",
"result"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
}