SandiMorse

SandiMorse MCP server

SandiMorse is a hosted, read-only Model Context Protocol server for Morse code and the Indonesian Pramuka (scout) codes. An AI assistant can use it to translate text to Morse and back, look up a letter with ways to remember it, write or read a message in a scout code and run Morse practice rounds. In hosts that support MCP Apps (ChatGPT, Claude) it also shows an interactive widget with a sound player and a lamp that blinks the code.

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

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

Tools

All tools are read-only.

Tool	What it does
translate_morse	Text to Morse and Morse to text, with a letter-by-letter breakdown, signal timing, a sound player and a lamp
morse_chart	The Morse chart (A to Z, 0 to 9, punctuation) or one character with its code, dot and dash counts and memory tips
encode_scout_code	A message written in one of 16 scout codes; kotak, rumput and semaphore come back as pictures
decode_scout_code	A coded message read back to text in 11 of the codes, with the key used
morse_practice	Ten Morse practice questions with answers: letter to code, code to letter, words, listening or mixed
list_codes	The 17 codes with name, what each is, its key, an example and a link to its page

• Answers follow the language argument, Indonesian (id, default) or English (en).
• Drawn codes (kotak 1 to 3, rumput, semaphore) can be written but not read back from text.

Connect

ChatGPT and Claude

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

Claude Desktop, Cursor and other MCP clients

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

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

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

Try asking

• "Translate SOS HALO into Morse code."
• "Show me the Morse code for K and how to remember it."
• "Write PRAMUKA SIAP in Kotak 3."
• "Decode this ROT13 message: CENZHXN"
• "Terjemahkan halo ke sandi morse."

On the website

• Morse code translator (English)
• Kode morse (Indonesian)

Screenshots

Translate	Kotak code	Practice

Privacy and support

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

SandiMorse has no accounts. The text sent from the chat is used to compute the answer and is not stored by SandiMorse; 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 SandiMorse website, its content and brand are not covered by it.