Read and reply to your personal Telegram chats and all your Slack workspaces.
To add telegram-slack-mcp to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 6 environment variables, listed below.
Install
npx -y telegram-slack-mcp@0.5.1Environment variables
TELEGRAM_API_IDSet in your MCP configTELEGRAM_API_HASHSet in your MCP configTELEGRAM_ALLOW_SENDSet in your MCP configSLACK_USER_TOKENSSet in your MCP configSLACK_ALLOW_SENDSet in your MCP configCHAT_MCP_DATA_DIRSet in your MCP configInstall with your client
claude mcp add telegram-slack --env TELEGRAM_API_ID=<YOUR_TELEGRAM_API_ID> --env TELEGRAM_API_HASH=<YOUR_TELEGRAM_API_HASH> --env TELEGRAM_ALLOW_SEND=<YOUR_TELEGRAM_ALLOW_SEND> --env SLACK_USER_TOKENS=<YOUR_SLACK_USER_TOKENS> --env SLACK_ALLOW_SEND=<YOUR_SLACK_ALLOW_SEND> --env CHAT_MCP_DATA_DIR=<YOUR_CHAT_MCP_DATA_DIR> -- npx -y telegram-slack-mcp@0.5.1
Run this in a terminal to add the server to Claude Code.
What this does
telegram-slack-mcp exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
TELEGRAM_API_ID TELEGRAM_API_HASH TELEGRAM_ALLOW_SEND SLACK_USER_TOKENS SLACK_ALLOW_SEND CHAT_MCP_DATA_DIR
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install telegram-slack-mcp?
Run the Claude Code command in the install section to add telegram-slack-mcp to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with telegram-slack-mcp?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to telegram-slack-mcp as well.
Does telegram-slack-mcp need an API key?
Yes. Before it can run, set these environment variables: TELEGRAM_API_ID, TELEGRAM_API_HASH, TELEGRAM_ALLOW_SEND, SLACK_USER_TOKENS, SLACK_ALLOW_SEND, CHAT_MCP_DATA_DIR. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
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