MCP (Model Context Protocol) server that makes LLMs write poetry that actually rhymes. It provides tools for Czech rhymes using the rymovac.cz API.

Enhance your favourite AI to write actually good poetry.

Add this server to your Claude Desktop/Cursor configuration:

{
  "mcpServers": {
    "rymovac": {
      "command": "npx",
      "args": ["-y", "@rymovac/mcp"]
    }
  }
}

The server provides:

Find Czech rhymes for a given word or phrase.

Parameters:

• word (required): The word or phrase to find rhymes for
• count (optional): Number of rhymes to return (1-50, default: 10)
• from (optional): Starting index for pagination (default: 0)

Check if two Czech words, phrases, verses, or poem rows rhyme.

Parameters:

• word1 (required): The first Czech word, phrase, verse, or poem row to compare
• word2 (required): The second Czech word, phrase, verse, or poem row to compare

A comprehensive guide for writing Czech poems using the rhyme finder.

Parameters:

• theme (optional): Theme or topic for the poem
• verses (optional): Number of verses/stanzas (default: 4)

For better results in poetry generating, use this LLM prompt:

When writing poetry, always follow the following.

Content:
- Plan a narrative arc that builds to a surprising conclusion
- Develop a surprising twist, punchline, or deeper message
- Consider unexpected angles or ironic perspectives on the topic
- Consider misdirection - lead readers one way, then reveal something unexpected

Format:
- If user not tell otherwise, use rhyme scheme AABB and write 1-2 stanzas.

Focus on Rhymes:
- BEFORE writing each stanza, find suitable rhyming pairs
- First look for rhymes for thematic words using the provided tool, search for words in multiple forms as "bratr", "bratře", "bratříček", ...
- Then use the found rhymes to write meaningful stanza
- Verify that the written lines actually rhyme using rhyme-checking tools. Do not compare only last words, but the whole lines
- Only then write complete verses around these rhymes

Grammar:
- Always check grammar. If incorrect or sound weird, rewrite

Before writing the poem, ALWAYS VERIFY:
- That grammar is flawless !!!
- That the line pairs actually rhymes using rhyme-checking tool !!!
- That it makes sense !!!

npm install
npm run build
npm run start

• npm run build - Build TypeScript to JavaScript
• npm start - Start the production server
• npm run inspect - Start and testing with MCP Inspector
• npm run watch - Watch mode for TypeScript compilation only

Add this to configuration:

{
  "mcpServers": {
    "rymovac": {
      "command": "node",
      "args": ["/path/to/rymovac-mcp/dist/index.js"]
    }
  }
}

You can test the MCP server using the official MCP Inspector (https://modelcontextprotocol.io/legacy/tools/inspector):

npm run inspect

1. Update version in package.json
2. npm publish

This project is licensed under the MIT License - see the LICENSE file for details.