Classify text or JSON into categories with AI
Classify text or JSON into categories with AI: sentiment analysis, topic, intent detection, urgency triage, or a custom taxonomy. Returns labels with confidence scores and reasoning.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
1336 msmedian answer time
$0.005001listed price per call
$0.005001price 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://web-production-2d1051.up.railway.app/v1/classify
| Category | Everything else |
|---|---|
| Provider host | web-production-2d1051.up.railway.app |
| Networks | eip155:8453 |
| 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 |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.005001 | 1336 ms |
Example input (from the provider)
{
"body": {
"explain": true,
"input": "The new API is incredibly fast and the documentation is excellent.",
"preset": "sentiment"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"explain": {
"description": "Include reasoning string. Default: true",
"type": "boolean"
},
"input": {
"description": "Text or JSON string to classify",
"type": "string"
},
"input_type": {
"description": "text (default) or json",
"enum": [
"text",
"json"
],
"type": "string"
},
"multi_label": {
"description": "Return ranked list of all labels. Default: false",
"type": "boolean"
},
"preset": {
"description": "Classification preset. Default: sentiment",
"enum": [
"sentiment",
"topic",
"intent",
"urgency",
"custom"
],
"type": "string"
},
"taxonomy": {
"description": "Custom label list (required when preset=custom, 2\u201320 labels)",
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"input"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"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"
}