# Procurement Research — String Normalisation + Equal-Width Histogram

> Procurement Research — String Normalisation + Equal-Width Histogram is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Normalises string fields and computes an equal-width histogram for quoted_amount or quoted_units across up to 200 procurement records, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-11-031?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/procurement-research-string-normalisation-equal-width-histogram-983ad870
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mXCTtigyamoNm8crPdK4Z

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 procurement-research-string-normalisation-equal-width-histogram-983ad870 -d '<json body>'
```

Example prompt: Can you normalise the string fields and generate a 10-bin equal-width histogram on quoted_amount for these procurement records — I have about 80 rows covering vendor quotes from groups like 'Alpha Corp' and 'Beta Ltd' with dates in 2024?

## When to prefer this

Choose this endpoint when you need both string normalisation and a numeric frequency histogram on procurement data (quoted_amount or quoted_units) in a single 0.01 USDC call, with no external data sources or live lookups — ideal for offline analysis of up to 200 supplier quote records where you want two complementary analytical views at once.

## Known failure modes

- More than 200 rows submitted — request rejected, max is 200
- Missing required fields (row_id, date, quoted_amount, quoted_units) — validation error
- bins value outside 1–30 range — schema validation failure
- All values for the selected field are null — histogram cannot be computed
- Malformed date strings not matching YYYY-MM-DD pattern — validation error
- Payment of 0.01 USDC not completed — 402 response

## How this service works

Procurement research — String normalisation + Equal-width histogram: String normalisation + Equal-width histogram for supplied procurement research records (quoted_amount, quoted_units). 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 reports: (1) string normalisation results for the procurement records, and (2) an equal-width histogram showing bin edges, bin labels, and row counts per bin for the selected numeric field (quoted_amount or quoted_units), based entirely on the supplied 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",
     "quoted_amount",
     "quoted_units"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "quoted_units": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "company_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "quoted_amount": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "quoted_units": 1,
     "company_group": "group-a",
     "quoted_amount": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "quoted_units": 2,
     "company_group": "group-b",
     "quoted_amount": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "quoted_units": 3,
     "company_group": "group-a",
     "quoted_amount": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "quoted_units": 4,
     "company_group": "group-b",
     "quoted_amount": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "quoted_amount",
    "quoted_units"
   ],
   "type": "string",
   "default": "quoted_amount"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/procurement-research-string-normalisation-equal-width-histogram-983ad870/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)