# ONE Engine Text Domain Extraction (T2)

> ONE Engine Text Domain Extraction (T2) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0007/call, status unknown (last checked 2026-10-02).

Extracts domain entities or structured domain-related information from a block of text up to 50,000 characters.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-extract/domains/t2?utm_source=zero.xyz
- Price: $0.0007/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-domain-extraction-t2-c1597482
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6KFaxaSreCbGzUoLmM5Pa

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-domain-extraction-t2-c1597482 -d '<json body>'
```

Example prompt: Can you extract all the domain names mentioned in this text for me? Here's the content: 'Our partners include teams at openai.com, anthropic.com, and deepmind.google — check their sites for more info.'

## When to prefer this

Choose this endpoint when you need a low-cost, pay-per-call extraction of domain entities from text as part of an autonomous agent workflow on Base/x402. At $0.0007 USDC per call it is extremely cheap for high-volume pipelines. Prefer it over general-purpose LLM extraction when you want a deterministic, structured API response rather than a language model's free-form output.

## Known failure modes

- Text exceeding 50,000 characters may be rejected or truncated
- Empty or whitespace-only text may return empty results
- No domains present in text returns an empty or null result set
- Payment failure via x402 protocol prevents the call from completing
- Malformed JSON request body returns a 400 error
- Rate limiting or quota exhaustion may return 429 errors

## How this service works

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

## Output

A JSON object containing extracted domain entities or structured domain-related information found within the submitted text. The exact schema is open-ended (additionalProperties: true), so the response may include arrays of domain strings, metadata about each domain, or other domain-related fields depending on the service 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-text-domain-extraction-t2-c1597482/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)