# Knowledge Topic Classifier – Supplied-Group Evaluation

> Knowledge Topic Classifier – Supplied-Group Evaluation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Evaluates a supplied set of up to 200 labelled text records for knowledge-topic classification (setup/usage/troubleshooting/reference), broken down by user-defined groups, using local naive-Bayes baselines.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-ml-knowledge-topic-group-evaluation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/knowledge-topic-classifier-supplied-group-evaluation-8a08bcb7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J22uv4bxr7-zC_L1aUeCS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability knowledge-topic-classifier-supplied-group-evaluation-8a08bcb7 -d '<json body>'
```

Example prompt: Evaluate my knowledge-topic classifier predictions — I have 150 labelled records, each tagged with actual and predicted categories (setup, usage, troubleshooting, or reference) and split into groups 'A' and 'B'. Give me a breakdown of how well the predictions match actuals for each group.

## When to prefer this

Choose this endpoint when you have a small, pre-labelled dataset of knowledge-topic documents (up to 200 records) segmented into user-defined groups, and you want a quick, cheap ($0.01 USDC) evaluation of classifier predictions against actuals with a naive-Bayes baseline — without needing to train or host any model. Prefer it over general ML evaluation platforms when your labels are in the specific setup/usage/troubleshooting/reference taxonomy and you want group-level breakdowns in a single API call.

## Known failure modes

- More than 200 records submitted — exceeds the bounded evaluation limit
- Records missing required fields (id, text, actual, predicted, group) — validation error
- Labels outside the allowed enum (setup, usage, troubleshooting, reference) — rejected
- Empty records array — no evaluation possible
- Malformed JSON payload — request rejected
- Payment not completed via x402 protocol — endpoint not executed

## How this service works

Knowledge topic - Supplied-group evaluation: Supplied-group evaluation for Knowledge topic. Up to 200 supplied labelled text records. Local dataset tools, evaluation and small naive-Bayes baselines; no hosted model or foundation-model training. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded supplied-group evaluation deliverable.

## Output

Returns a bounded evaluation deliverable containing per-group classification metrics (e.g. accuracy, per-class breakdown) for the supplied labelled records, along with a naive-Bayes baseline comparison. No hosted model is trained; results are computed locally from the provided actual and predicted labels across the defined groups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "records": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "id",
     "text",
     "actual",
     "predicted",
     "group"
    ],
    "properties": {
     "id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "text": {
      "type": "string",
      "default": "",
      "maxLength": 1000
     },
     "group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "actual": {
      "enum": [
       "setup",
       "usage",
       "troubleshooting",
       "reference"
      ],
      "type": "string"
     },
     "predicted": {
      "enum": [
       "setup",
       "usage",
       "troubleshooting",
       "reference"
      ],
      "type": "string"
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "id": "example-0-0",
     "text": "setup sample document number 0 for this supplied dataset.",
     "group": "a",
     "actual": "setup",
     "predicted": "setup"
    },
    {
     "id": "example-0-1",
     "text": "setup sample document number 1 for this supplied dataset.",
     "group": "b",
     "actual": "setup",
     "predicted": "setup"
    },
    {
     "id": "example-0-2",
     "text": "setup sample document number 2 for this supplied dataset.",
     "group": "a",
     "actual": "setup",
     "predicted": "setup"
    },
    {
     "id": "example-1-0",
     "text": "usage sample document number 0 for this supplied dataset.",
     "group": "a",
     "actual": "usage",
     "predicted": "usage"
    },
    {
     "id": "example-1-1",
     "text": "usage sample document number 1 for this supplied dataset.",
     "group": "b",
     "actual": "usage",
     "predicted": "usage"
    },
    {
     "id": "example-1-2",
     "text": "usage sample document number 2 for this supplied dataset.",
     "group": "a",
     "actual": "usage",
     "predicted": "usage"
    },
    {
     "id": "example-2-0",
     "text": "troubleshooting sample document number 0 for this supplied dataset.",
     "group": "a",
     "actual": "troubleshooting",
     "predicted": "troubleshooting"
    },
    {
     "id": "example-2-1",
     "text": "troubleshooting sample document number 1 for this supplied dataset.",
     "group": "b",
     "actual": "troubleshooting",
     "predicted": "troubleshooting"
    },
    {
     "id": "example-2-2",
     "text": "troubleshooting sample document number 2 for this suppli
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/knowledge-topic-classifier-supplied-group-evaluation-8a08bcb7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)