# ONE Engine Word Bigram Tokenizer

> ONE Engine Word Bigram Tokenizer 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 all consecutive word bigrams (two-word pairs) from input text, returning tokenized n-gram data for NLP and text analysis tasks.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/word-bigrams/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-word-bigram-tokenizer-4f618e94
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qmqdPFyJFyInhMHZhh5PN

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-bigram-tokenizer-4f618e94 -d '<json body>'
```

Example prompt: Extract all word bigrams from this text for me: 'The quick brown fox jumps over the lazy dog and the dog barked back.'

## When to prefer this

Choose this endpoint when you need a cheap, fast, pay-per-call bigram extraction primitive for agentic NLP pipelines — particularly when you want no infrastructure overhead and are already using x402 micropayments on Base. Ideal for preprocessing steps in search indexing, feature engineering, or text analytics where you need raw bigram tokens without a full NLP framework.

## Known failure modes

- Text exceeding 50,000 characters may be rejected or truncated
- Empty or whitespace-only text may return an empty bigram list
- Payment failure via x402 results in 402 response before processing
- Malformed JSON body returns 400 error
- Non-English or heavily punctuated text may yield unexpected tokenization results

## How this service works

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

## Output

A JSON object containing the extracted word bigrams from the input text — consecutive two-word pairs derived by sliding a window of size 2 across the tokenized words. May include bigram arrays or frequency maps depending on the API implementation.

## 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-word-bigram-tokenizer-4f618e94/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)