# ONE Engine Text Token Alphanumeric Top-10 Extractor

> ONE Engine Text Token Alphanumeric Top-10 Extractor 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 alphanumeric tokens from a block of text, up to 50,000 characters.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/alphanumeric/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-alphanumeric-top-10-extractor-1ef44198
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NbL3qIdHGxb8LkB-X7rUa

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-alphanumeric-top-10-extractor-1ef44198 -d '<json body>'
```

Example prompt: Can you extract the top 10 alphanumeric tokens from this article text I'm pasting? Here it is: [paste up to 50,000 characters of text].

## When to prefer this

Choose this endpoint when you need a fast, cheap ($0.03 per call) way to extract the top alphanumeric tokens from a text block of up to 50,000 characters, especially in autonomous agent pipelines that use x402 micropayments on Base. Prefer it over heavier NLP services when you only need simple token frequency extraction without deep semantic analysis.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty text input — may return empty token list or error
- Non-alphanumeric-only text (e.g. pure symbols) — may return empty or minimal results
- Payment failure via x402 — 402 response if USDC payment not processed
- Network/worker timeout for very large inputs near the limit

## 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 alphanumeric tokens extracted from the input text, likely ranked by frequency or relevance. The exact structure is open (additionalProperties: true), but typically includes a list of tokens and possibly their counts or scores.

## 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-alphanumeric-top-10-extractor-1ef44198/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)