# Payment Imports — Declared Column Projection

> Payment 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 2026-10-20).

Validates a CSV of payment records against a declared column schema contract, checking up to 1000 rows for structural and value conformity.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-payments-projection?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payment-imports-declared-column-projection-99fc9ea2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NnSCrQRPAdwwFuRugwR6l

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 payment-imports-declared-column-projection-99fc9ea2 -d '<json body>'
```

Example prompt: Can you validate this payments CSV for me — it uses a comma delimiter and the columns are payment_id, paid_on, invoice_id, paid_amount, and processing_fee — I need to make sure the paid_amount stays between 0 and 50000 and that invoice_id is only ever 'group-a' or 'group-b'?

## When to prefer this

Choose this endpoint when you need to validate a payment-specific CSV against a declared column contract before importing into a financial or accounting system, especially when you need value-range enforcement (min/max amounts) and categorical field validation (allowed invoice groups). Prefer this over generic CSV validators when your use case is payment record imports with structured schema expectations.

## Known failure modes

- CSV exceeds 100,000 character limit — request rejected
- More than 1000 rows submitted — only first 1000 validated or error returned
- Invalid delimiter specified (not comma, semicolon, or tab) — validation error
- Cell value exceeds max_cell_length — flagged in report
- Numeric values outside minimum/maximum bounds — flagged per row
- Malformed CSV (unclosed quotes, inconsistent columns) — parse error returned
- Empty CSV submitted — error due to minLength:1 constraint

## How this service works

Payment imports — Declared column projection: Declared column projection for Payment 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

Returns a declared column projection report for the submitted CSV, indicating whether each column meets the declared contract — including value range checks (min/max), allowed category membership, cell length limits, and structural parsing results for up to 1000 rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "payment_id,paid_on,invoice_id,paid_amount,processing_fee\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/payment-imports-declared-column-projection-99fc9ea2/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)