Porter is gentler and more common. Lancaster is aggressive and creates much shorter stems (sometimes stripping prefixes/suffixes completely).

Does it help with RAG?

Yes! Stemming documents before embedding them reduces vector dimensionality and increases recall for different word variations.

Does it do tokenization?

Yes, it automatically tokenizes the string, stems each word, and rejoins them for your convenience.

Stemmer & Lemmatizer Engine MCP Connector for Claude

A+

Porter and Lancaster local text stemming. Reduce vocabulary size exactly and deterministically before feeding text to a vector database.

1 tools Official Updated Jun 28, 2026 Official Vinkius Partner

More Details Connect to Claude

Stemming reduces words to their root or base form (e.g., 'running' to 'run'). This is critical for preparing text for vector search, RAG, or topic modeling. Rather than asking an LLM to manually stem thousands of words (which wastes tokens and risks semantic alteration), this engine applies mathematically proven Porter or Lancaster algorithms natively local to clean and reduce your entire text corpus in one fast operation.

nlpstemminglemmatizationtext-preprocessingvector-searchtokenization

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_irXfMdMMaEZGVkqPil2LsPCgt9v0l0ULTfqQ1ZDs/mcp

② Claude Code (terminal)

claude mcp add --transport http stemmer-lemmatizer-engine https://edge.vinkius.com/vk_preview_irXfMdMMaEZGVkqPil2LsPCgt9v0l0ULTfqQ1ZDs/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "stemmer-lemmatizer-engine": {
      "url": "https://edge.vinkius.com/vk_preview_irXfMdMMaEZGVkqPil2LsPCgt9v0l0ULTfqQ1ZDs/mcp"
    }
  }
}

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