# Audio Mastering — String Normalisation + Base-100 Series

> Audio Mastering — String Normalisation + Base-100 Series is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-02).

Runs string normalisation and base-100 indexing on up to 200 audio mastering records (integrated LUFS and true peak dB), producing 2 analytical reports locally.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-creative-15-030?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/audio-mastering-string-normalisation-base-100-series-17eddddb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jXsfYqVyGaBcrmawW69YL

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 audio-mastering-string-normalisation-base-100-series-17eddddb -d '<json body>'
```

Example prompt: Take these 50 audio mastering records with integrated_lufs and true_peak_db values across two asset groups — run string normalisation and a base-100 series on the integrated_lufs field, starting from index 0, and give me the two reports.

## When to prefer this

Choose this endpoint when you have up to 200 audio mastering records with integrated LUFS or true peak dB values and need both string normalisation and a base-100 trend index in a single low-cost call ($0.01 USDC). It is ideal for offline/batch analytical workflows where no live lookup, external prediction, or streaming data is required.

## Known failure modes

- Submitting more than 200 rows returns a validation error
- Missing required fields (row_id, date, integrated_lufs, true_peak_db) causes rejection
- Invalid date format (not YYYY-MM-DD) triggers a pattern validation error
- base_index out of range (>= number of rows) may produce undefined behaviour
- Null values in numeric fields may affect index computation or produce partial results
- Non-numeric values passed for integrated_lufs or true_peak_db are rejected by schema

## How this service works

Audio mastering — String normalisation + Base-100 series: String normalisation + Base-100 series for supplied audio mastering records (integrated_lufs, true_peak_db). 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: one covering string-normalised representations of the selected field (integrated_lufs or true_peak_db) and one covering a base-100 index series relative to the specified base_index row, computed locally across up to 200 supplied audio mastering records.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "asset_group",
     "date",
     "integrated_lufs",
     "true_peak_db"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "asset_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "true_peak_db": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "integrated_lufs": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "asset_group": "group-a",
     "true_peak_db": 1,
     "integrated_lufs": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "asset_group": "group-b",
     "true_peak_db": 2,
     "integrated_lufs": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "asset_group": "group-a",
     "true_peak_db": 3,
     "integrated_lufs": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "asset_group": "group-b",
     "true_peak_db": 4,
     "integrated_lufs": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "integrated_lufs",
    "true_peak_db"
   ],
   "type": "string",
   "default": "integrated_lufs"
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/audio-mastering-string-normalisation-base-100-series-17eddddb/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)