# ONE Engine Text Hashtag Extractor

> ONE Engine Text Hashtag Extractor is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).

Extracts relevant hashtags from a given block of text using a pay-per-call API on Base via x402.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/hashtags/t6?utm_source=zero.xyz
- Price: $0.004/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-hashtag-extractor-2f69fae4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QqMuw5-BIXifrA1hx1ZmA

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-hashtag-extractor-2f69fae4 -d '<json body>'
```

Example prompt: Can you extract hashtags from this article text for me? Here's the content: 'Artificial intelligence is transforming how businesses operate, from automating workflows to generating insights from data at scale.'

## When to prefer this

Choose this endpoint when you need fast, low-cost hashtag extraction from arbitrary text in an autonomous agent pipeline — especially when operating on Base with x402 micropayments. Ideal for content workflows that generate social posts, articles, or marketing copy and need programmatic tagging without a heavy NLP service subscription.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty text input — may return empty hashtag list or error
- Payment failure via x402 on Base — 402 response if USDC payment not completed
- Ambiguous or very short text — may return generic or low-quality hashtags
- 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

Returns an object containing extracted or suggested hashtags derived from the input text, likely as an array of hashtag strings or a structured tag list relevant to the content's topics and themes.

## 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-hashtag-extractor-2f69fae4/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)