# Course Grade Imports — CSV Column Statistics

> Course Grade Imports — CSV Column Statistics is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Computes per-column descriptive statistics for a CSV of course grade import data, validating up to 1000 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-grades-column-stats?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/course-grade-imports-csv-column-statistics-7cdcb053
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hAHAMLZ8Be2AfwStTOM5P

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 course-grade-imports-csv-column-statistics-7cdcb053 -d '<json body>'
```

Example prompt: Can you run column statistics on my course grade imports CSV? It uses a comma delimiter, and the valid course groups are 'group-a' and 'group-b'. Here's the data: result_id,graded_on,course_id,earned_points,possible_points followed by my rows.

## When to prefer this

Choose this endpoint when you need fast, specialized column-level statistical profiling of a course grade import CSV — particularly when you want to validate category fields, enforce numeric bounds, and get a structured report without any external data enrichment. Best suited for pre-import data quality checks on education gradebook CSVs up to 1000 rows.

## Known failure modes

- CSV exceeds 100,000 character limit — request rejected
- More than 1000 rows submitted — validation fails
- Invalid delimiter specified (not comma, semicolon, or tab) — schema error
- Cell length exceeds max_cell_length setting — parsing error
- Numeric values outside declared minimum/maximum bounds flagged or rejected
- Malformed CSV (unmatched quotes, inconsistent columns) — parse error
- Empty CSV string submitted — minimum length violation

## How this service works

Course grade imports — Column statistics: Column statistics for Course grade 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 column statistics report.

## Output

Returns a per-column statistics report for the submitted CSV, including numeric summaries (min, max, mean, count) and category validation results for each column, covering up to 1000 rows with support for quoted cells.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "result_id,graded_on,course_id,earned_points,possible_points\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/course-grade-imports-csv-column-statistics-7cdcb053/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)