# ONE Engine Word Frequency Analyzer (Tier 5, 1024-word window)

> ONE Engine Word Frequency Analyzer (Tier 5, 1024-word window) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0048/call, status unknown (last checked 2026-10-12).

Analyzes the first 1024 words of a text input to build a word frequency distribution with Tier 5 diagnostic enrichment.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v11/text-analysis/word-frequency/p7/t5?utm_source=zero.xyz
- Price: $0.0048/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-word-frequency-analyzer-tier-5-1024-word-window-7b8dc93d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rKiS-z4_K61VO7sLgz7o9

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 one-engine-word-frequency-analyzer-tier-5-1024-word-window-7b8dc93d -d '<json body>'
```

Example prompt: Analyze this blog post and give me a word frequency breakdown for the first 1024 words — I want to see which terms appear most often and how many times each one shows up.

## When to prefer this

Choose this endpoint when you need a fast, deterministic, pay-per-call word frequency computation on a bounded text window (up to 1024 words) without setting up your own NLP pipeline. It is especially suitable for AI agents that need lightweight term-frequency signals for preprocessing, content auditing, or vocabulary analysis at low cost ($0.0048 per call). Prefer it over heavier NLP APIs when you only need counts and basic diagnostics rather than semantic embeddings or deep language understanding.

## Known failure modes

- Empty or missing text body returns an error or empty frequency map
- Text shorter than expected may yield sparse results with low diagnostic value
- Non-UTF-8 or malformed input encoding may cause parsing errors
- Payment failure via x402 prevents endpoint access
- Rate limiting or quota exhaustion may return 402 or 429 responses

## How this service works

Deterministic local text analysis utility: Build word frequencies from first N words; parameter=1024. Tier 5/10 provides progressively richer diagnostics.

## Output

Returns a structured word frequency map covering the first 1024 words of the submitted text, listing each unique token alongside its occurrence count, ranked by frequency. Tier 5 enrichment adds progressively richer diagnostic signals such as statistical summaries, vocabulary diversity metrics, or distribution insights beyond bare counts.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-word-frequency-analyzer-tier-5-1024-word-window-7b8dc93d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)