# 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, $0.01/call, status unknown (last checked 2026-10-02).

Extracts or filters alphanumeric tokens from a given text string, returning tokenized output suitable for downstream processing by autonomous agents.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/alphanumeric/t8?utm_source=zero.xyz
- Price: $0.01/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-5f700814
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YPG1GykHlMFZTjT9Vmhkm

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-5f700814 -d '<json body>'
```

Example prompt: Strip out all special characters and punctuation from this block of text and give me back only the alphanumeric tokens: 'Hello, World! This is a test #123 — with symbols & stuff.'

## When to prefer this

Choose this endpoint when you need a cheap, per-call alphanumeric tokenization step for agent pipelines — especially when preprocessing user input, cleaning log data, or normalizing strings before indexing or further NLP. At $0.01 USDC per call on Base via x402, it is well-suited for high-frequency, low-cost agent workflows that need simple text cleaning without spinning up a full NLP stack.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty text input returns empty token set
- Non-string input types cause validation errors
- Payment failure via x402 results in 402 response before processing begins
- Malformed JSON body returns 400 error

## 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 submitted text, with special characters, punctuation, and whitespace removed or separated. The exact response structure may vary but typically includes arrays or strings of extracted tokens.

## 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-5f700814/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)