io.github.nileshpatil6/telegram-slack-mcp

io.github.nileshpatil6/telegram-slack-mcpv0.2.2Chat & Messaging

Read and reply to your personal Telegram chats and all your Slack workspaces.

The current version, v0.2.2, was published to the official MCP registry on 2026-08-23. It is distributed as telegram-slack-mcp on npm and as telegram-slack-mcp on PyPI, filed under Chat & Messaging by this index, and declares 6 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using io.github.nileshpatil6/telegram-slack-mcp in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-23).

Contracts can change after screening, with no version bump. The gate pins io.github.nileshpatil6/telegram-slack-mcp’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Environment variables

TELEGRAM_API_ID

api_id from https://my.telegram.org (Telegram server only)

TELEGRAM_API_HASH

secret

api_hash from https://my.telegram.org (Telegram server only)

TELEGRAM_ALLOW_SEND

Set to 1 to allow sending Telegram messages as you. Off by default.

SLACK_USER_TOKENS

secret

One Slack user token (xoxp-) per workspace, comma separated (Slack server only)

SLACK_ALLOW_SEND

Set to 1 to allow posting to Slack as you. Off by default.

CHAT_MCP_DATA_DIR

Where the Telegram session is stored. Defaults to ~/.chat-mcp

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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MCP Registry Monitor

io.github.nirholas/mcp-notify

Monitor MCP registry for new servers - Discord Slack notifications alerts

Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "telegram-slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "telegram-slack-mcp"
      ],
      "env": {
        "TELEGRAM_API_ID": "<telegram_api_id>",
        "TELEGRAM_API_HASH": "<your-telegram_api_hash>",
        "TELEGRAM_ALLOW_SEND": "<telegram_allow_send>",
        "SLACK_USER_TOKENS": "<your-slack_user_tokens>",
        "SLACK_ALLOW_SEND": "<slack_allow_send>",
        "CHAT_MCP_DATA_DIR": "<chat_mcp_data_dir>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "telegram-slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "telegram-slack-mcp"
      ],
      "env": {
        "TELEGRAM_API_ID": "<telegram_api_id>",
        "TELEGRAM_API_HASH": "<your-telegram_api_hash>",
        "TELEGRAM_ALLOW_SEND": "<telegram_allow_send>",
        "SLACK_USER_TOKENS": "<your-slack_user_tokens>",
        "SLACK_ALLOW_SEND": "<slack_allow_send>",
        "CHAT_MCP_DATA_DIR": "<chat_mcp_data_dir>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- telegram-slack-mcp

Claude Code (claude mcp add)

claude mcp add --scope user telegram-slack-mcp -- npx -y -- telegram-slack-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user telegram-slack-mcp npx -y -- telegram-slack-mcp

Claude Desktop (uvx)

{
  "mcpServers": {
    "telegram-slack-mcp": {
      "command": "uvx",
      "args": [
        "--",
        "telegram-slack-mcp"
      ],
      "env": {
        "TELEGRAM_API_ID": "<telegram_api_id>",
        "TELEGRAM_API_HASH": "<your-telegram_api_hash>",
        "TELEGRAM_ALLOW_SEND": "<telegram_allow_send>",
        "SLACK_USER_TOKENS": "<your-slack_user_tokens>",
        "SLACK_ALLOW_SEND": "<slack_allow_send>",
        "CHAT_MCP_DATA_DIR": "<chat_mcp_data_dir>"
      }
    }
  }
}

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-nileshpatil6-telegram-slack-mcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.2.2
category: Chat & Messaging
quality: 80 / 100
operator: nileshpatil6

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 963,534). Verify it yourself.

Links

Repository →