# CSV Header Contract Validator for Evaluation Run Imports

> CSV Header Contract Validator for Evaluation Run Imports 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).

Validates a declared CSV table schema contract for evaluation run data, checking headers, data types, and constraints across up to 1000 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-evaluations-schema?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/csv-header-contract-validator-for-evaluation-run-imports-77ebc588
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vTbgnkFGMpp_Zy5P78i2P

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 csv-header-contract-validator-for-evaluation-run-imports-77ebc588 -d '<json body>'
```

Example prompt: Can you check whether my evaluation run CSV has the right headers and data? It uses a comma delimiter, has columns evaluation_id, evaluated_on, dataset_id, correct_count, and example_count, and the allowed category values are group-a and group-b.

## When to prefer this

Use this endpoint when you need to validate that a CSV file destined for evaluation run imports conforms to a declared header contract before ingestion. It is purpose-built for evaluation run schemas (evaluation_id, evaluated_on, dataset_id, correct_count, example_count) and supports configurable delimiters, numeric bounds, cell length limits, and category allowlists. Prefer this over generic CSV validators when you need domain-specific evaluation run contract checking at low cost ($0.01 per check) with support for quoted cells.

## Known failure modes

- CSV exceeds 100,000 character limit — request rejected
- CSV contains fewer than 1 row — minLength violation
- Delimiter mismatch causes all data to appear in a single column
- More than 100 allowed_categories supplied — exceeds maxItems
- Cell values exceed max_cell_length threshold — flagged as violation
- Malformed CSV (unclosed quotes, encoding issues) — parse error
- Numeric values outside declared minimum/maximum bounds — flagged

## How this service works

Evaluation run imports — Header contract check: Header contract check for Evaluation run 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 header contract check report.

## Output

Returns a header contract check report detailing whether the CSV's declared headers conform to the expected schema, including any violations such as missing columns, unexpected headers, out-of-range numeric values, oversized cells, or disallowed category values across up to 1000 rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "evaluation_id,evaluated_on,dataset_id,correct_count,example_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/csv-header-contract-validator-for-evaluation-run-imports-77ebc588/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)