# Meeting Topic Confusion Matrix

> Meeting Topic Confusion Matrix is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Computes a confusion matrix for meeting topic classification (planning/progress/decision/review) from up to 200 labelled text records

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-ml-meeting-topic-confusion?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/meeting-topic-confusion-matrix-10923841
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iPRBVe7EueZ42GdQ1vkBI

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 meeting-topic-confusion-matrix-10923841 -d '<json body>'
```

Example prompt: Evaluate my meeting topic classifier by computing a confusion matrix — I have 50 labelled records with actual and predicted labels across planning, progress, decision, and review categories. Here are the records: [{id: 'r1', text: 'Let us plan the Q3 roadmap', actual: 'planning', predicted: 'planning'}, ...]

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call confusion matrix evaluation for a 4-class meeting topic classifier without standing up your own ML evaluation infrastructure. Ideal for small validation sets up to 200 records where you want a quick, cheap assessment of planning/progress/decision/review classification quality.

## Known failure modes

- Records array exceeds 200 items — request rejected or truncated
- Missing required fields (id, text, actual, predicted) on any record causes validation error
- Invalid enum values for actual or predicted fields (must be planning/progress/decision/review)
- Empty records array returns trivial or error response
- Payment not included or insufficient — x402 payment required at $0.01 USDC

## How this service works

Meeting topic - Confusion matrix: Confusion matrix for Meeting 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 confusion matrix deliverable.

## Output

A bounded confusion matrix deliverable showing how predicted meeting topic labels (planning, progress, decision, review) compare against actual labels across up to 200 supplied records, enabling per-class error analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "records": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "id",
     "text",
     "actual",
     "predicted"
    ],
    "properties": {
     "id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "text": {
      "type": "string",
      "default": "",
      "maxLength": 1000
     },
     "actual": {
      "enum": [
       "planning",
       "progress",
       "decision",
       "review"
      ],
      "type": "string"
     },
     "predicted": {
      "enum": [
       "planning",
       "progress",
       "decision",
       "review"
      ],
      "type": "string"
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "id": "example-0-0",
     "text": "planning sample document number 0 for this supplied dataset.",
     "actual": "planning",
     "predicted": "planning"
    },
    {
     "id": "example-0-1",
     "text": "planning sample document number 1 for this supplied dataset.",
     "actual": "planning",
     "predicted": "planning"
    },
    {
     "id": "example-0-2",
     "text": "planning sample document number 2 for this supplied dataset.",
     "actual": "planning",
     "predicted": "planning"
    },
    {
     "id": "example-1-0",
     "text": "progress sample document number 0 for this supplied dataset.",
     "actual": "progress",
     "predicted": "progress"
    },
    {
     "id": "example-1-1",
     "text": "progress sample document number 1 for this supplied dataset.",
     "actual": "progress",
     "predicted": "progress"
    },
    {
     "id": "example-1-2",
     "text": "progress sample document number 2 for this supplied dataset.",
     "actual": "progress",
     "predicted": "progress"
    },
    {
     "id": "example-2-0",
     "text": "decision sample document number 0 for this supplied dataset.",
     "actual": "decision",
     "predicted": "decision"
    },
    {
     "id": "example-2-1",
     "text": "decision sample document number 1 for this supplied dataset.",
     "actual": "decision",
     "predicted": "decision"
    },
    {
     "id": "example-2-2",
     "text": "decision sample document number 2 for this supplied dataset.",
     "actual": "decision",
     "predicted": "decision"
    },
    {
     "id": "example-3-0",
     "text": "review sample document number 0 for this supplied dataset.",
     "actual": "review",
     "predicted": "review"
    },
    {
     "id": 
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/meeting-topic-confusion-matrix-10923841/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)