# Token Holder Observations — CSV Column Statistics

> Token Holder Observations — 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 2026-10-15).

Computes per-column descriptive statistics for a CSV dataset of token holder observations, validating structure and data quality up to 1,000 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-token-holders-column-stats?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-holder-observations-csv-column-statistics-8d0f2e51
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O1gwPjN0Et6NatCa4uWBs

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 token-holder-observations-csv-column-statistics-8d0f2e51 -d '<json body>'
```

Example prompt: Can you run column statistics on this token holder observations CSV — it's comma-delimited, holder counts should be between 0 and 1,000,000, and the only valid token addresses are 'group-a' and 'group-b'? Here's the data: observation_id,observed_on,token_address,holder_count,circulating_tokens\nrecord-a,2026-01-01,group-a,10,2\nrecord-b,2026-01-02,group-b,20,3

## When to prefer this

Choose this endpoint when you need fast, offline column-level statistical profiling and validation of a token holder observations CSV without external data enrichment. It is purpose-built for the token holder domain schema (observation_id, observed_on, token_address, holder_count, circulating_tokens) and supports category allow-listing and numeric range enforcement in a single call for $0.01 USDC. Prefer it over generic CSV validators when you need domain-specific presets and integrated payment via x402.

## Known failure modes

- CSV exceeds 100,000 characters — request rejected with payload too large error
- More than 1,000 rows submitted — validation truncated or rejected
- Cell content exceeds max_cell_length — parsing error returned
- Category values outside allowed_categories list — flagged as validation failures
- Malformed CSV (unmatched quotes, wrong delimiter) — parse error returned
- Numeric values outside declared minimum/maximum bounds — out-of-range flags in output

## How this service works

Token holder observations — Column statistics: Column statistics for Token holder observations. 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

A column statistics report covering each column in the submitted CSV: data type inference, count of non-null values, min/max, mean, distinct value counts, and category validation results — all computed locally without external enrichment, covering up to 1,000 rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "observation_id,observed_on,token_address,holder_count,circulating_tokens\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/token-holder-observations-csv-column-statistics-8d0f2e51/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)