# Property Listing Imports — Spreadsheet Formula Flags

> Property Listing Imports — Spreadsheet Formula Flags is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Validates a CSV of property listing data and reports cells containing spreadsheet formula injections (e.g. cells starting with =, +, -, @).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-properties-formula-flags?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/property-listing-imports-spreadsheet-formula-flags-3c4663ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-drVUXaSY2Y5gJNsAkS4r

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 property-listing-imports-spreadsheet-formula-flags-3c4663ac -d '<json body>'
```

Example prompt: Check this property listing CSV for spreadsheet formula flags — it uses comma delimiters and has columns listing_id, listed_on, region_id, asking_price, and floor_area_sqm; the allowed region categories are group-a and group-b, and prices should be between 0 and 5000000.

## When to prefer this

Use this endpoint when you need to detect spreadsheet formula injection vulnerabilities (CSV injection) in property listing CSV files specifically, especially before importing user-supplied or third-party CSV data into a system. It is purpose-built for the property listing domain with columns like listing_id, listed_on, region_id, asking_price, and floor_area_sqm, and supports category allow-listing and numeric range checks in addition to formula flagging. Prefer this over generic CSV validators when you need a combined formula-injection scan plus structural validation for real estate import workflows.

## Known failure modes

- CSV exceeds 100,000 character limit — request rejected
- More than 1000 rows submitted — only up to 1000 rows processed
- Invalid delimiter specified — must be comma, semicolon, or tab
- Cell content exceeds max_cell_length limit
- Malformed CSV (unclosed quotes, inconsistent columns) — parse error returned
- Empty CSV string submitted — validation error

## How this service works

Property listing imports — Spreadsheet formula flags: Spreadsheet formula flags for Property listing 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 spreadsheet formula flags report.

## Output

A formula flags report identifying which cells in the submitted property listing CSV contain spreadsheet formula patterns (e.g. values starting with =, +, -, @, or similar injection characters), along with row/column positions and category or range validation issues — up to 1000 rows processed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "listing_id,listed_on,region_id,asking_price,floor_area_sqm\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/property-listing-imports-spreadsheet-formula-flags-3c4663ac/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)