# Case Study Word Frequency Analyzer

> Case Study Word Frequency Analyzer 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).

Counts and returns word frequencies for a supplied case study document in Markdown or plain text

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-writing-case-study-word-frequency?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/case-study-word-frequency-analyzer-a5f561c8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6FhDJYqrTgWdtfiOodCjh

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 case-study-word-frequency-analyzer-a5f561c8 -d '<json body>'
```

Example prompt: Can you analyze the word frequencies in this case study text I have — it covers the challenge, solution, and results sections — and give me a breakdown of how often each word appears?

## When to prefer this

Choose this endpoint when you need deterministic, reproducible word frequency counts specifically for case study documents formatted in Markdown or plain text, and want a lightweight $0.01 per-call computation without any generative AI involvement or hallucination risk.

## Known failure modes

- Text exceeds 20,000 character limit — request rejected
- Empty or missing text field — no frequencies returned
- Malformed request body — API returns error
- Payment not included or invalid — x402 payment required error

## How this service works

Case study - Word frequencies: Word frequencies for Case study. Supplied Markdown or plain text, up to 20,000 characters. Deterministic processing and document templates; no generative prose or fact checking. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded word frequencies deliverable.

## Output

A bounded word frequency deliverable listing each unique word found in the supplied case study text along with its occurrence count, derived through deterministic processing with no generative prose or fact-checking.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "default": "## Challenge\nExample 1 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Solution\nExample 2 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Results\nExample 3 content.\nTODO: review the supplied document by 2026-10-10.",
   "maxLength": 20000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/case-study-word-frequency-analyzer-a5f561c8/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)