# ONE Engine Email Extractor (Text)

> ONE Engine Email Extractor (Text) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-02).

Extracts email addresses from a block of text up to 50,000 characters using a pay-per-call API on Base.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-extract/emails/t4?utm_source=zero.xyz
- Price: $0.0015/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-email-extractor-text-f554a7ea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n4zOHtH-WBRH3Xat7hOMU

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-email-extractor-text-f554a7ea -d '<json body>'
```

Example prompt: Can you pull out all the email addresses from this block of text for me? Here's the content: 'Please reach out to sales@company.com or support@help.org for assistance. Our CEO can be contacted at jane.doe@acme.com.'

## When to prefer this

Choose this endpoint when you need a cheap, fast, pay-per-call email extraction from raw text without setting up NLP infrastructure. At $0.0015 USDC per call, it is cost-effective for high-volume autonomous agent workflows. Prefer this over regex-based self-implementation when reliability and simplicity matter, and when operating within the x402/Base payment ecosystem.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- No email addresses found in input text — returns empty result
- Malformed or missing 'text' field — 400 bad request
- Payment not fulfilled via x402 — 402 Payment Required returned
- Transient worker error — 500 or timeout from Cloudflare Workers runtime

## 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 email addresses found in the input text. The exact structure is open-ended (additionalProperties: true), but expected to include a list or array of extracted email strings.

## 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-email-extractor-text-f554a7ea/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)