# Contract Renewal Inventories — Equal-Width Histogram + Two-Measure Correlation

> Contract Renewal Inventories — Equal-Width Histogram + 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 2026-10-16).

Runs an equal-width histogram and a two-measure Pearson correlation on up to 200 rows of contract renewal inventory data (expiring_contracts, renewed_contracts) and returns both reports for a flat $0.01 USDC.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-20-171?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/contract-renewal-inventories-equal-width-histogram-two-measure-69fca96d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JfOC5w0sYzNDN0HuSvq1A

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 contract-renewal-inventories-equal-width-histogram-two-measure-69fca96d -d '<json body>'
```

Example prompt: I have 120 rows of contract renewal data with expiring_contracts and renewed_contracts columns — can you run an equal-width histogram on expiring_contracts using 8 bins, plus a correlation between expiring_contracts and renewed_contracts, and give me both reports?

## When to prefer this

Choose this endpoint when you have contract renewal tabular data (expiring and renewed counts) you want to analyze locally without any external data enrichment, live lookups, or prediction. It is ideal for getting two statistical reports — a histogram and a correlation — in a single inexpensive call ($0.01 USDC) on datasets up to 200 rows. Prefer it over generic analytics APIs when you need fast, deterministic, privacy-respecting computation on your own supplied rows with no side effects.

## Known failure modes

- Exceeds 200-row limit — payload rejected
- Invalid date format (not YYYY-MM-DD) causes row validation failure
- Bin count outside 1–30 range returns schema validation error
- Null values in both measure columns may produce undefined correlation
- Empty rows array is rejected (minItems: 1)
- Missing required fields (row_id, date, expiring_contracts, renewed_contracts) cause row-level errors
- Payment failure via x402 prevents processing

## How this service works

Contract renewal inventories — Equal-width histogram + Two-measure correlation: Equal-width histogram + Two-measure correlation for supplied contract renewal inventories records (expiring_contracts, renewed_contracts). 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) an equal-width histogram showing bin edges, counts, and frequencies for the chosen field (expiring_contracts or renewed_contracts) across the supplied rows, and (2) a two-measure correlation report (e.g. Pearson r) between expiring_contracts and renewed_contracts — both computed locally from the uploaded data, with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bins": {
   "type": "integer",
   "default": 5,
   "maximum": 30,
   "minimum": 1
  },
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "company_group",
     "date",
     "expiring_contracts",
     "renewed_contracts"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "company_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "renewed_contracts": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "expiring_contracts": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "company_group": "group-a",
     "renewed_contracts": 1,
     "expiring_contracts": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "company_group": "group-b",
     "renewed_contracts": 2,
     "expiring_contracts": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "company_group": "group-a",
     "renewed_contracts": 3,
     "expiring_contracts": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "company_group": "group-b",
     "renewed_contracts": 4,
     "expiring_contracts": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "expiring_contracts",
    "renewed_contracts"
   ],
   "type": "string",
   "default": "expiring_contracts"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/contract-renewal-inventories-equal-width-histogram-two-measure-69fca96d/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)