# Keywords, Topics and Tags Extractor

> Keywords, Topics and Tags Extractor is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-30).

Extracts keywords, topics, and tags from a given text input using AI

## Facts

- Endpoint: POST https://twin.unykorn.org/ai/keywords?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/keywords-topics-and-tags-extractor-a54c08a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5fL2B2zc3EXtr6qOVWxXc

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 keywords-topics-and-tags-extractor-a54c08a1 -d '<json body>'
```

Example prompt: Can you pull out the main keywords, topics, and tags from this article text? Here it is: 'The Federal Reserve raised interest rates by 25 basis points citing persistent inflation in housing and energy sectors, while markets reacted with a brief sell-off before recovering.'

## When to prefer this

Use this endpoint when you need fast, AI-driven keyword and topic extraction from text up to 16,000 characters, especially in automated content pipelines, CMS tagging workflows, or semantic search indexing. Prefer it over generic LLM prompts when you want a consistent, pay-per-call service with predictable output structure for keyword and tag extraction specifically.

## Known failure modes

- Text exceeds 16,000 character limit — request rejected or truncated
- Empty or missing text field — validation error returned
- Payment of $0.003 USDC not fulfilled — 402 Payment Required response
- Ambiguous or very short text may yield sparse or low-quality keyword sets
- Non-English text may produce degraded results depending on model support

## How this service works

Keywords, topics and tags from text — Genesis402 / UnyKorn Operator Network

## Output

A structured list of extracted keywords, topics, and tags derived from the submitted text, useful for content indexing, categorization, SEO tagging, and semantic analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "object",
   "properties": {
    "text": {
     "type": "string",
     "description": "required, up to 16,000 chars"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/keywords-topics-and-tags-extractor-a54c08a1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twin.unykorn.org](https://www.zero.xyz/host/twin.unykorn.org/llms.txt)