# Save Files — String Normalisation + Explicit Missing-Value Fill

> Save Files — String Normalisation + Explicit Missing-Value Fill is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).

Normalises string fields and fills missing numeric values (save_kb or write_ms) in up to 200 save-file records, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-game-13-037?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/save-files-string-normalisation-explicit-missing-value-fill-e60bc4fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_20lj6XASajYPS7V3h4-Mz

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 save-files-string-normalisation-explicit-missing-value-fill-e60bc4fb -d '<json body>'
```

Example prompt: I have 150 save file records with some missing save_kb values — can you normalise the strings and fill those nulls using the median method, with fields like row_id, game_area, date, save_kb, and write_ms?

## When to prefer this

Choose this endpoint when you have up to 200 save-file records with mixed string inconsistencies and null numeric values (save_kb or write_ms) and need both normalisation and imputation in a single low-cost call. It is ideal for offline batch data-quality workflows on game save data where no live lookup or external enrichment is required.

## Known failure modes

- Exceeding 200 rows returns a validation error
- Missing required fields (row_id, game_area, date) causes row rejection
- Numeric values outside allowed range (±1,000,000,000,000) are rejected
- Invalid date format (non-YYYY-MM-DD) causes schema validation failure
- Specifying an unsupported fill method or field enum value returns an error
- Empty rows array is rejected (minItems: 1)

## How this service works

Save files — String normalisation + Explicit missing-value fill: String normalisation + Explicit missing-value fill for supplied save files records (save_kb, write_ms). 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 analytical reports covering (1) string normalisation results for text fields and (2) explicit missing-value fill results for the chosen numeric field (save_kb or write_ms), applied to up to 200 submitted save-file rows using local engines — no external lookups or predictions.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/save-files-string-normalisation-explicit-missing-value-fill-e60bc4fb/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)