# Contract Renewal Inventories — Adjacent Row Changes + Secondary-Measure Weighted Mean

> Contract Renewal Inventories — Adjacent Row Changes + Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Computes adjacent row changes and secondary-measure weighted mean analytics on supplied contract renewal inventory records (expiring_contracts, renewed_contracts) for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-20-159?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/contract-renewal-inventories-adjacent-row-changes-secondary-measure-cfdd8ddd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pLonXLlk5xpZ9ahtz3pAh

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-adjacent-row-changes-secondary-measure-cfdd8ddd -d '<json body>'
```

Example prompt: Run adjacent row changes and secondary-measure weighted mean analysis on my contract renewal inventory data — I have rows for group-a and group-b from 2026-10-01 to 2026-10-04, with expiring_contracts values of 10, 20, 15, 30 and renewed_contracts of 1, 2, 3, 4, and I want the primary field set to expiring_contracts.

## When to prefer this

Choose this endpoint when you need fast, local statistical analysis on a batch of contract renewal inventory records and specifically want both adjacent row change deltas and a weighted mean computation in a single call. It is ideal when you have up to 200 pre-collected rows and do not need live lookups, predictions, or external data enrichment. Prefer it over general-purpose analytics tools when working within the x402 micropayment ecosystem at low cost ($0.01 USDC for two reports).

## Known failure modes

- Rows array exceeds 200 items — returns error or truncates
- Missing required fields (row_id, date, expiring_contracts, renewed_contracts) — validation error
- Invalid date format (not YYYY-MM-DD) — schema validation failure
- Null values in numeric fields may affect weighted mean calculation
- Payment of 0.01 USDC not provided — request rejected
- Invalid 'field' enum value — schema validation error

## How this service works

Contract renewal inventories — Adjacent row changes + Secondary-measure weighted mean: Adjacent row changes + Secondary-measure weighted mean 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

Two independent analytical reports for the supplied dataset (up to 200 rows): (1) adjacent row changes showing period-over-period deltas for the selected measure, and (2) a secondary-measure weighted mean summarizing the dataset. Results are computed locally using shared analytical engines with no external lookups or predictions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "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-adjacent-row-changes-secondary-measure-cfdd8ddd/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)