# Web Visit Aggregates — Declared Column Projection

> Web Visit Aggregates — 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 and projects declared columns from a CSV of web visit aggregate data, checking schema contract compliance for up to 1000 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-web-visits-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/web-visit-aggregates-declared-column-projection-262aa9cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1FnH_Qmv5gAd84RjrM5HW

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 web-visit-aggregates-declared-column-projection-262aa9cf -d '<json body>'
```

Example prompt: Can you validate my web visit aggregates CSV to make sure its declared columns match the expected contract? Here's the CSV with columns observation_id, observed_on, page_path, visit_count, engaged_count — allowed categories are group-a and group-b, comma-delimited, up to 1000 rows.

## When to prefer this

Choose this endpoint when you need to validate the declared column schema contract of a web visit aggregates CSV specifically — it is purpose-built for the observation_id, observed_on, page_path, visit_count, engaged_count schema with category allowlisting and numeric range checks, at a low per-call cost of $0.01 USDC. Prefer it over generic CSV validators when your data is web visit aggregate data and you need a structured projection report rather than just syntax checking.

## Known failure modes

- CSV exceeds 1000 rows — only first 1000 rows processed
- CSV string exceeds 100,000 character limit — request rejected
- Delimiter mismatch causes parsing errors — wrong delimiter specified
- Cell length exceeds max_cell_length — flagged as violation
- Category values not in allowed_categories list — flagged as invalid
- Malformed CSV (unclosed quotes, inconsistent columns) — parse error returned
- Numeric values outside min/max bounds — flagged in report

## How this service works

Web visit aggregates — Declared column projection: Declared column projection for Web visit aggregates. 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 web visit aggregates CSV, indicating whether each declared column conforms to the schema contract, with row-level findings for up to 1000 rows including any violations of value ranges, cell length limits, or disallowed category values.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "observation_id,observed_on,page_path,visit_count,engaged_count\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/web-visit-aggregates-declared-column-projection-262aa9cf/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)