# Glossary Coverage Analyzer — Category Frequencies + Two-Measure Correlation

> Glossary Coverage Analyzer — Category Frequencies + Two-Measure Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Computes category-level frequency distributions and two-measure correlation analysis for glossary coverage records (covered_terms vs. required_terms) on up to 200 supplied rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-20-108?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/glossary-coverage-analyzer-category-frequencies-two-measure-correlation-577e3027
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IJxAtEtee3ZfGihHcso8R

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 glossary-coverage-analyzer-category-frequencies-two-measure-correlation-577e3027 -d '<json body>'
```

Example prompt: Can you run a category frequency breakdown and two-measure correlation on my glossary coverage data? I have 4 records: row-1 on 2026-10-01 for group-a with 10 covered_terms and 1 required_terms, row-2 on 2026-10-02 for group-b with 20 covered and 2 required, row-3 on 2026-10-03 for group-a with 15 covered and 3 required, and row-4 on 2026-10-04 for group-b with 30 covered and 4 required.

## When to prefer this

Choose this endpoint when you need two statistical outputs — category frequency distribution and bivariate correlation — on glossary coverage data in a single low-cost call. Ideal when you already have the data locally and just need analytical computation without any external data enrichment, prediction, or live lookup. Best suited for document teams, content compliance workflows, or terminology managers who want quick offline statistics on up to 200 records for $0.01 USDC.

## Known failure modes

- More than 200 rows submitted — exceeds maximum row limit
- Missing required fields (row_id, document_group, date, covered_terms, required_terms) — validation error
- Invalid date format (must be YYYY-MM-DD) — schema rejection
- Null values in both covered_terms and required_terms causing correlation to be undefined
- Payment not included or insufficient USDC — 402 payment required response

## How this service works

Glossary coverage — Category frequencies + Two-measure correlation: Category frequencies + Two-measure correlation for supplied glossary coverage records (covered_terms, required_terms). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Returns two independent analytical reports: (1) category frequencies showing how often each document_group appears in the supplied rows, and (2) a two-measure correlation between covered_terms and required_terms across all rows — both computed locally on the supplied data with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "document_group",
     "date",
     "covered_terms",
     "required_terms"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "covered_terms": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "document_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "required_terms": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "covered_terms": 10,
     "document_group": "group-a",
     "required_terms": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "covered_terms": 20,
     "document_group": "group-b",
     "required_terms": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "covered_terms": 15,
     "document_group": "group-a",
     "required_terms": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "covered_terms": 30,
     "document_group": "group-b",
     "required_terms": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/glossary-coverage-analyzer-category-frequencies-two-measure-correlation-577e3027/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)