# ONE Engine Text Token Identifier Extraction

> ONE Engine Text Token Identifier Extraction 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 token identifiers (t3) from a block of text using a pay-per-call utility API on Base via x402.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/identifiers/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-identifier-extraction-af31acd3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CbXKEW3Zb0FX-sSEYI_wX

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-identifier-extraction-af31acd3 -d '<json body>'
```

Example prompt: Can you extract all the token identifiers from this text for me: 'The transaction involved tokens ABC-001, XYZ-999, and DEF-042, all processed on the Base network.'

## When to prefer this

Choose this endpoint when you need a low-cost, pay-per-call solution to extract token identifiers from text as part of an autonomous agent pipeline, especially when operating on Base with x402 micropayment infrastructure. Ideal for high-volume, programmatic text processing where per-call cost efficiency matters.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected with validation error
- Malformed or missing 'text' field in request body — 400 Bad Request
- Payment failure via x402 on Base — 402 Payment Required
- No identifiable token identifiers found in text — empty result set returned
- Service unavailable or Cloudflare Worker timeout — 5xx error

## 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 token identifiers found within the input text, structured for downstream agent processing.

## 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-identifier-extraction-af31acd3/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)