# ONE Engine Text Domain Extraction (t7)

> ONE Engine Text Domain Extraction (t7) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0065/call, status unknown (last checked 2026-10-02).

Extracts domain-related entities or structured information from raw text input up to 50,000 characters.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-extract/domains/t7?utm_source=zero.xyz
- Price: $0.0065/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-t7-6d153c35
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GTKOd5cVL-Y91uRv659Qm

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-t7-6d153c35 -d '<json body>'
```

Example prompt: Extract all domain-related entities from this text for me: 'We partnered with companies at google.com, stripe.com, and several others listed in the report below...' — give me a structured list of everything you find.

## When to prefer this

Choose this endpoint when you need to extract domain-related entities from unstructured text at very low cost ($0.0065 USDC per call) using x402 micropayments on Base. It is well-suited for autonomous agents processing documents, articles, emails, or data dumps where identifying web domains or domain entities is the primary goal. Prefer this over general-purpose LLM extraction when you want a pay-per-call, deterministic, low-overhead API without managing API keys.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty or missing 'text' field — validation error returned
- Payment failure via x402 on Base — 402 response if USDC payment not authorized
- Ambiguous or low-signal text may return sparse or empty extraction results
- Network timeout on Cloudflare Workers edge — transient 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 extracted domain-related entities and structured information derived from the input text. The exact schema is flexible (additionalProperties: true), so the response may include lists of identified domains, entity metadata, or other structured extraction results depending on the text content.

## 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-t7-6d153c35/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)