# ONE Engine Text Token Alphanumeric Extractor

> ONE Engine Text Token Alphanumeric Extractor is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Extracts or filters alphanumeric tokens from a given text string, returning tokenized alphanumeric content up to 50,000 characters.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/alphanumeric/t3?utm_source=zero.xyz
- Price: $0.001/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-extractor-f79d1301
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GjVWmJB6WLtT4AEjtg7YM

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-extractor-f79d1301 -d '<json body>'
```

Example prompt: Extract all alphanumeric tokens from this text for me: 'Hello, World! This is test #42 — with some special chars & punctuation...' and give me back just the clean alphanumeric pieces.

## When to prefer this

Choose this endpoint when you need a cheap, pay-per-call ($0.001 USDC) alphanumeric tokenization step for agentic pipelines on Base/x402 infrastructure, especially when preprocessing text before downstream NLP, search indexing, or data cleaning tasks. Prefer it over heavier NLP APIs when you only need simple alphanumeric extraction without semantic analysis.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Payment failure via x402/USDC — 402 Payment Required returned
- Empty text input — may return empty token list or validation error
- Malformed JSON request body — 400 Bad Request
- Network timeout on Cloudflare Worker edge — retry recommended

## 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 alphanumeric tokens extracted from the input text, with non-alphanumeric characters removed or used as delimiters. The exact structure is flexible (additionalProperties: true), but typically includes the tokenized result derived from the submitted text.

## 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-extractor-f79d1301/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)