UnscrambleKey

UnscrambleKey MCP server

UnscrambleKey is a hosted, read-only Model Context Protocol server for English word tools. An AI assistant can use it to unscramble a rack of letters, find anagrams, solve a Wordle position, fit a crossword pattern, list words by length or letters and score a word in Scrabble or Words With Friends. In hosts that support MCP Apps (ChatGPT, Claude) it shows the words grouped by length, the Wordle board and a tap-a-word points card.

• Website: https://unscramblekey.com
• MCP endpoint: https://unscramblekey.com/api/mcp (Streamable HTTP, no sign-in)
• Documentation: https://unscramblekey.com/app
• Official MCP Registry name: com.unscramblekey/unscramblekey

This repository holds the public server description, icons and connection instructions. The server itself is hosted at unscramblekey.com, so there is nothing to install or run locally.

Tools

All tools are read-only.

Tool	What it does
unscramble_letters	Every word a rack of letters can make, grouped by length, common first, with scores and optional blanks and filters
find_anagrams	The words that use all the letters exactly once, plus the count of shorter words
solve_wordle	The words still possible after your guesses and the ten best next guesses
solve_pattern	Words that fit a crossword-style pattern such as A_E
word_list	Dictionary words by length, start, end or contained letters, a page at a time
score_word	Whether a word is valid, common or rare, and its Scrabble and Words With Friends points

• Scoring is scrabble (default) or wwf; blanks in a rack are _ or ?.
• Offensive words are hidden unless include_offensive is set. Results come a page at a time with a cursor.

Connect

ChatGPT and Claude

Add a custom connector with the URL https://unscramblekey.com/api/mcp and choose no authentication.

Claude Desktop, Cursor and other MCP clients

{
  "mcpServers": {
    "unscramblekey": {
      "url": "https://unscramblekey.com/api/mcp"
    }
  }
}

Clients that only launch local servers can connect through a bridge such as mcp-remote:

{
  "mcpServers": {
    "unscramblekey": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://unscramblekey.com/api/mcp"]
    }
  }
}

Try asking

• "Unscramble the letters LISTEN."
• "I guessed CRANE in Wordle: C gray, R yellow, A gray, N gray, E green. What next?"
• "Which words fit A_E?"
• "Is QUIZ a word, and how many points is it in Scrabble?"

On the website

• Word unscrambler

Screenshots

Unscramble	Wordle	Pattern

Privacy and support

• Privacy: https://unscramblekey.com/privacy/
• Terms: https://unscramblekey.com/terms/
• Support: https://unscramblekey.com/contact/ or [email protected]

UnscrambleKey has no accounts. The letters and words sent from the chat reach the server so it can look them up; they are not stored by UnscrambleKey, and the hosting provider keeps standard request logs for a short time.

To report a problem, open an issue in this repository or write to [email protected].

License

The text and icons in this repository are released under the MIT License. The UnscrambleKey website, its content and brand are not covered by it.