# Token Pool Observations — Calendar Date Check

> Token Pool Observations — Calendar Date Check 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).

Validates calendar date fields in a CSV table of token pool observations, checking up to 1000 rows for date format and range compliance.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-csv-token-pools-dates?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-pool-observations-calendar-date-check-87ce0c2d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sLo2QrBuT5nbkPZXQ-usv

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-pool-observations-calendar-date-check-87ce0c2d -d '<json body>'
```

Example prompt: Can you run a calendar date check on my token pool observations CSV — it uses a comma delimiter and dates should all fall between 2024-01-01 and 2026-12-31? I want to catch any rows where the observed_on field has bad or out-of-range dates.

## When to prefer this

Choose this endpoint when you need to validate specifically the calendar date fields in a token pool observations CSV (columns like observed_on) for format correctness and range compliance, without any external enrichment. It is purpose-built for the token pool observation schema and is cost-effective at $0.01 USDC per report for batch validation up to 1000 rows.

## Known failure modes

- CSV exceeds 1000 rows — only up to 1000 rows are validated
- CSV string exceeds 100,000 character limit — request rejected
- Invalid delimiter specified — must be comma, semicolon, or tab
- Date column values cannot be parsed — report flags entire column as invalid
- Cell length exceeds max_cell_length — cell may be rejected or truncated
- Empty CSV input — validation fails with minimum length error

## How this service works

Token pool observations — Calendar date check: Calendar date check for Token pool 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 calendar date check report.

## Output

A calendar date check report for the submitted token pool observations CSV, indicating which rows have valid or invalid date values, flagging format errors, out-of-range dates, and any other date-column anomalies across up to 1000 rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "csv": {
   "type": "string",
   "default": "observation_id,observed_on,pool_address,liquidity_usd,volume_usd\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-pool-observations-calendar-date-check-87ce0c2d/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)