# ONE Engine Text Token Mentions Extractor (Top 10)

> ONE Engine Text Token Mentions Extractor (Top 10) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).

Extracts the top 10 most frequently mentioned tokens or terms from a block of text up to 50,000 characters.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/mentions/t10?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-text-token-mentions-extractor-top-10-3decc3d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XhQoi7l2mBTOV_9JPvGAh

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-text-token-mentions-extractor-top-10-3decc3d4 -d '<json body>'
```

Example prompt: Scan this 10,000-word earnings call transcript and pull out the top 10 most mentioned tokens or terms so I can see what topics dominated the conversation.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call solution to rank the most frequently occurring tokens in a text body without running a full NLP pipeline. It is ideal for autonomous agents needing quick frequency-based term extraction at low cost ($0.03 per call) on Base via x402, especially when you don't need semantic clustering or entity recognition — just raw mention counts.

## Known failure modes

- Text exceeding 50,000 characters may be rejected or truncated
- Empty or whitespace-only text may return empty results or an error
- Payment failure via x402 on Base will block the request
- Ambiguous tokenization boundaries may affect token count accuracy
- Non-English or mixed-language text may produce unexpected token segmentation

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

Returns a JSON object containing the top 10 most frequently mentioned tokens from the submitted text, likely including each token and its mention count or rank, enabling downstream frequency analysis or topic summarization.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text up to 50000 characters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-text-token-mentions-extractor-top-10-3decc3d4/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)