# Language Routing – Low-Confidence Review Queue

> Language Routing – Low-Confidence Review Queue is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Identifies and surfaces low-confidence predictions from a naive-Bayes language classifier (English/French/Spanish/other) for human review, given up to 200 labelled text records with predicted probabilities.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-ml-language-routing-review-queue?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/language-routing-low-confidence-review-queue-a6f91878
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RzEWYdKAwBAJ53jjSeZEh

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 language-routing-low-confidence-review-queue-a6f91878 -d '<json body>'
```

Example prompt: I have 50 labelled text records with their actual languages, predicted labels (english/french/spanish/other), and the four-class probability arrays from my naive-Bayes classifier — can you run them through the low-confidence review queue so I can see which predictions are too uncertain to trust?

## When to prefer this

Choose this endpoint when you have a local language classification pipeline (English/French/Spanish/other) using a naive-Bayes or similar baseline model and want to systematically identify which predictions are uncertain enough to warrant human review. It is well-suited for small-to-medium batch evaluation (up to 200 records) without needing a hosted model or foundation-model infrastructure. Prefer it over general ML evaluation tools when your specific use case is language routing quality assurance and you need a structured low-confidence queue deliverable.

## Known failure modes

- More than 200 records supplied — input truncated or rejected
- Probability arrays not summing to 1 or not containing exactly 4 values — validation error
- Missing required fields (id, text, actual, predicted, probabilities) in any record — schema rejection
- Enum values outside allowed set (english/french/spanish/other) — validation failure
- Payment not completed via x402 — endpoint returns 402 Payment Required

## How this service works

Language routing - Low-confidence review queue: Low-confidence review queue for Language routing. 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 low-confidence review queue deliverable.

## Output

A bounded deliverable containing a review queue of records where the naive-Bayes language classifier's predictions are low-confidence, drawn from up to 200 supplied labelled text records. Each queued item includes its ID, text, actual label, predicted label, and probability scores, helping users identify which classifications need human review or further investigation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "records": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "id",
     "text",
     "actual",
     "predicted",
     "probabilities"
    ],
    "properties": {
     "id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "text": {
      "type": "string",
      "default": "",
      "maxLength": 1000
     },
     "actual": {
      "enum": [
       "english",
       "french",
       "spanish",
       "other"
      ],
      "type": "string"
     },
     "predicted": {
      "enum": [
       "english",
       "french",
       "spanish",
       "other"
      ],
      "type": "string"
     },
     "probabilities": {
      "type": "array",
      "items": {
       "type": "number",
       "default": 0,
       "maximum": 1,
       "minimum": 0
      },
      "default": [],
      "maxItems": 4,
      "minItems": 4
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "id": "example-0-0",
     "text": "english sample document number 0 for this supplied dataset.",
     "actual": "english",
     "predicted": "english",
     "probabilities": [
      0.8,
      0.06666666666666667,
      0.06666666666666667,
      0.06666666666666667
     ]
    },
    {
     "id": "example-0-1",
     "text": "english sample document number 1 for this supplied dataset.",
     "actual": "english",
     "predicted": "english",
     "probabilities": [
      0.8,
      0.06666666666666667,
      0.06666666666666667,
      0.06666666666666667
     ]
    },
    {
     "id": "example-0-2",
     "text": "english sample document number 2 for this supplied dataset.",
     "actual": "english",
     "predicted": "english",
     "probabilities": [
      0.8,
      0.06666666666666667,
      0.06666666666666667,
      0.06666666666666667
     ]
    },
    {
     "id": "example-1-0",
     "text": "french sample document number 0 for this supplied dataset.",
     "actual": "french",
     "predicted": "french",
     "probabilities": [
      0.06666666666666667,
      0.8,
      0.06666666666666667,
      0.06666666666666667
     ]
    },
    {
     "id": "example-1-1",
     "text": "french sample document number 1 for this supplied dataset.",
     "actual": "french",
     "predicted": "french",
     "probabilities": [
      0.06666666666666667,
      0.8,
      0.06666666666666667,
      0.06666666666666667
     ]
    },
    {
     "id": "example-1-2",
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/language-routing-low-confidence-review-queue-a6f91878/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)