# Maintenance Imports — Declared Column Projection

> Maintenance Imports — Declared Column Projection 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).

Validates a declared CSV contract for maintenance import data, checking column structure, value ranges, and category membership for up to 1000 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-maintenance-projection?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/maintenance-imports-declared-column-projection-9d6979f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VY8ykMfZrqDwg_BU2olA1

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 maintenance-imports-declared-column-projection-9d6979f0 -d '<json body>'
```

Example prompt: Can you validate this maintenance CSV against its declared column contract — check that maintenance_id, performed_on, asset_id, labour_hours, and parts_cost columns are correct, that labour_hours is between 0 and 500, parts_cost between 0 and 10000, and asset_id is one of group-a or group-b? Here's the CSV data.

## When to prefer this

Choose this endpoint when you need to validate a maintenance-specific CSV import file against a declared column contract before loading it into a system, especially when you need to enforce numeric ranges for fields like labour_hours and parts_cost, restrict asset_id values to a known set of categories, and get a structured validation report — all without any external data enrichment.

## Known failure modes

- CSV exceeds 1000 rows — only first 1000 are processed
- CSV exceeds 100,000 character limit — request rejected
- Malformed CSV with unbalanced quotes — parsing error returned
- Delimiter mismatch — columns not parsed correctly if wrong delimiter specified
- Cell length exceeds max_cell_length — flagged as violation
- Numeric values outside min/max bounds — reported as range violations
- Category values not in allowed_categories — reported as membership violations

## How this service works

Maintenance imports — Declared column projection: Declared column projection for Maintenance imports. Validate a declared CSV table contract, up to 1000 rows. Quoted cells supported; no external enrichment. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one CSV declared column projection report.

## Output

A declared column projection report indicating whether the CSV conforms to the declared contract, including per-column type checks, numeric range validation results, category membership checks for categorical columns, cell length violations, and any row-level errors found across up to 1000 rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "maintenance_id,performed_on,asset_id,labour_hours,parts_cost\nrecord-a,2026-01-01,group-a,10,2\nrecord-b,2026-01-02,group-b,20,3",
   "maxLength": 100000,
   "minLength": 1
  },
  "maximum": {
   "type": "number",
   "default": 1000000000000,
   "maximum": 1000000000000,
   "minimum": -1000000000000
  },
  "minimum": {
   "type": "number",
   "default": -1000000000000,
   "maximum": 1000000000000,
   "minimum": -1000000000000
  },
  "delimiter": {
   "enum": [
    ",",
    ";",
    "\t"
   ],
   "type": "string",
   "default": ","
  },
  "max_cell_length": {
   "type": "integer",
   "default": 1000,
   "maximum": 5000,
   "minimum": 1
  },
  "allowed_categories": {
   "type": "array",
   "items": {
    "type": "string",
    "default": "",
    "maxLength": 100,
    "minLength": 1
   },
   "default": [
    "group-a",
    "group-b"
   ],
   "maxItems": 100,
   "minItems": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/maintenance-imports-declared-column-projection-9d6979f0/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)