# Citation Inventories — String Normalisation + Numeric Interval Filter

> Citation Inventories — String Normalisation + Numeric Interval Filter is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-26).

Normalises string fields and filters rows by a numeric interval for citation inventory records containing reference_count and verified_references, producing two analytical reports for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-06-026?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-26
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/citation-inventories-string-normalisation-numeric-interval-filter-735b51aa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__4B1E4ap7A0h0FaPt36WJ

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 citation-inventories-string-normalisation-numeric-interval-filter-735b51aa -d '<json body>'
```

Example prompt: Take my citation inventory rows and run string normalisation on the document_group field, then filter by reference_count between 5 and 150 — I have about 80 rows covering groups like 'group-a' and 'group-b' and I need the two analytical reports back.

## When to prefer this

Choose this endpoint when you have citation inventory data (up to 200 rows) that needs both string field normalisation and a numeric interval filter applied in a single call, returning two reports at low cost. It is purpose-built for academic/bibliometric citation records with reference_count and verified_references fields, and operates entirely on supplied data with no external lookups, making it deterministic and privacy-safe.

## Known failure modes

- Input array exceeds 200 rows — request rejected
- Missing required fields (row_id, date, reference_count, verified_references) cause validation error
- Date field does not match YYYY-MM-DD pattern — row rejected or error returned
- minimum greater than maximum causes empty filter result or validation error
- Numeric values outside ±1,000,000,000,000 bounds rejected
- Payment of 0.01 USDC not confirmed — request blocked by x402 paywall

## How this service works

Citation inventories — String normalisation + Numeric interval filter: String normalisation + Numeric interval filter for supplied citation inventories records (reference_count, verified_references). 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 covering: (1) string-normalised values for document_group and related string fields across the supplied citation inventory rows, and (2) rows filtered to only those where the selected numeric field (reference_count or verified_references) falls within the specified minimum–maximum interval. Results are computed locally with no external lookups, covering up to 200 input rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "document_group",
     "date",
     "reference_count",
     "verified_references"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "document_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "reference_count": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "verified_references": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "document_group": "group-a",
     "reference_count": 10,
     "verified_references": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "document_group": "group-b",
     "reference_count": 20,
     "verified_references": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "document_group": "group-a",
     "reference_count": 15,
     "verified_references": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "document_group": "group-b",
     "reference_count": 30,
     "verified_references": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "reference_count",
    "verified_references"
   ],
   "type": "string",
   "default": "reference_count"
  },
  "maximum": {
   "type": "number",
   "default": 100,
   "maximum": 1000000000000,
   "minimum": -1000000000000
  },
  "minimum": {
   "type": "number",
   "default": 0,
   "maximum": 1000000000000,
   "minimum": -1000000000000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/citation-inventories-string-normalisation-numeric-interval-filter-735b51aa/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)