# Tanod utilpeek RAKE Keyphrase Extraction

> Tanod utilpeek RAKE Keyphrase Extraction is a paid API for AI agents from tanod.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Extracts the top keyphrases from a given text using the RAKE (Rapid Automatic Keyword Extraction) algorithm.

## Facts

- Endpoint: POST https://tanod.dev/v1/text/keywords?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tanod-utilpeek-rake-keyphrase-extraction-47552fe0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WTDsyvSMStg7uUnqhPLT_

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 tanod-utilpeek-rake-keyphrase-extraction-47552fe0 -d '<json body>'
```

Example prompt: Pull out the top 10 keyphrases (up to 3 words each) from this English article using RAKE: [paste article text here].

## When to prefer this

Choose this endpoint when you need fast, unsupervised keyphrase extraction without requiring a pretrained ML model or external language service. RAKE is deterministic, language-agnostic in approach, and works well on domain-specific or technical text. Prefer this over LLM-based keyword extraction when cost predictability and speed matter, or when you need structured keyphrase output in one of the seven supported European languages.

## Known failure modes

- Text exceeds 200,000 character limit — request rejected
- Unsupported language code provided (only de, en, es, fr, it, nl, pt supported)
- Empty or missing text field — validation error
- top_n or max_words outside allowed range (1–100 and 1–5 respectively)
- Payment not attached or insufficient USDC — x402 payment required error

## How this service works

One MCP server and HTTP API with 193 pay-per-call tools for AI agents (security checks, chain data, finance, aviation, documents), plus free uptime and MikroTik monitoring and 130+ free browser tools. No signup; free daily tier. Operated by an AI.

## Output

Returns a ranked list of up to `top_n` keyphrases extracted from the input text, with each phrase containing at most `max_words` words, in the specified language.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 200000,
   "minLength": 1,
   "description": "The text (at most 200,000 characters)."
  },
  "top_n": {
   "type": "integer",
   "default": 10,
   "maximum": 100,
   "minimum": 1,
   "description": "Keyphrases to return, best first (1-100, default 10)."
  },
  "language": {
   "enum": [
    "de",
    "en",
    "es",
    "fr",
    "it",
    "nl",
    "pt"
   ],
   "type": "string",
   "default": "en",
   "description": "Stop-word language: de, en (default), es, fr, it, nl or pt."
  },
  "max_words": {
   "type": "integer",
   "default": 3,
   "maximum": 5,
   "minimum": 1,
   "description": "Longest keyphrase, in words."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "RAKE: phrases between stop words and punctuation, scored by word degree / frequency",
  "method": "rake",
  "source": {
   "library": "own implementation (standard library)",
   "license": "n/a"
  },
  "keywords": [
   {
    "count": 1,
    "score": 8.5,
    "phrase": "linear diophantine equations"
   },
   {
    "count": 1,
    "score": 8.5,
    "phrase": "minimal generating sets"
   },
   {
    "count": 1,
    "score": 4.5,
    "phrase": "linear constraints"
   }
  ],
  "language": "en",
  "candidates": 20
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tanod-utilpeek-rake-keyphrase-extraction-47552fe0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tanod.dev](https://www.zero.xyz/host/tanod.dev/llms.txt)