# ONE Engine Text-to-Hashtags Extractor

> ONE Engine Text-to-Hashtags Extractor 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 relevant hashtags from a given text input (up to 50,000 characters) via a pay-per-call API on Base using x402.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/hashtags/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-to-hashtags-extractor-0ff4bc43
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xlg1tuz45vqxO38xO9k0o

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-to-hashtags-extractor-0ff4bc43 -d '<json body>'
```

Example prompt: Can you pull out the best hashtags from this text for me? Here's the content: 'Excited to launch our new sustainable coffee line made from single-origin beans, ethically sourced from small farms in Colombia and Ethiopia.'

## When to prefer this

Choose this endpoint when you need fast, cheap, per-call hashtag extraction from text without subscribing to a full NLP platform. It's ideal for autonomous agents processing variable volumes of social content, blog posts, or marketing copy at $0.0007 per call using x402 micropayments on Base — no monthly commitment required.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected
- Insufficient USDC balance or x402 payment failure — 402 Payment Required response
- Empty or whitespace-only text input — may return empty hashtag list or error
- Network timeout on Cloudflare Workers edge — transient 5xx error
- Ambiguous or very short text — may return low-quality or generic hashtags

## How this service works

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

## Output

Returns a JSON object containing an array or set of extracted hashtags derived from the input text, suitable for use in social media posts, content tagging, or SEO enrichment.

## 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-to-hashtags-extractor-0ff4bc43/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)