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MCP verified BSD-3-Clause Self-run

Mcp Tg

mcp-lexfrei-mcp-tg · by lexfrei

MCP server for Telegram Client API (MTProto)

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Install

$ agentstack add mcp-lexfrei-mcp-tg

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

Verified badge

Passed review? Show it. Paste this badge into your README, it links to the public security report.

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/mcp-lexfrei-mcp-tg)

Reliability & compatibility

✓ Security review passed
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Declared compatibility

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Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

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How agent discovery & health will work →
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About

mcp-tg

MCP server for Telegram Client API (MTProto). Provides 78 tools, 4 resources, 3 prompts, and argument completions for comprehensive Telegram account management.

Uses gotd/td for MTProto protocol — this is a user account client, not a bot.

📖 Full documentation: mcp-tg.lexfrei.dev

Install

Homebrew (macOS, Linux) — also installs a brew services unit for the shared HTTP daemon:

brew install lexfrei/tap/mcp-tg

Container:

docker pull ghcr.io/lexfrei/mcp-tg:latest

Binary: darwin, linux and windows archives for amd64 and arm64 are on the releases page, each covered by a keyless cosign signature over checksums.txt.

Details for every path: Installation.

Quickstart

Get an app id and hash from my.telegram.org — the public builds carry no credentials — then register the server:

claude mcp add mcp-tg --env TELEGRAM_APP_ID=12345 --env TELEGRAM_APP_HASH=your_app_hash -- mcp-tg

On the first tool call the server asks for the phone and login code right in the client, and the session lands in the OS keychain. To keep the 2FA password out of the MCP client, run mcp-tg login in a terminal once instead — see Authentication.

Running many agent sessions or several MCP clients? A server process per session adds up — run one shared HTTP daemon instead: brew services start mcp-tg, then claude mcp add --transport http mcp-tg http://127.0.0.1:8787 --scope user. See Transport modes.

Or skip the steps entirely: tell your agent to read Agent Setup and it does the rest.

Documentation

Everything lives at mcp-tg.lexfrei.dev:

Contributing

The site is built from docs/ with MkDocs Material and deploys on every push to master. Dependencies are locked in requirements-docs.txt (pinned and hashed; edit requirements-docs.in and recompile). To preview locally:

pip install --requirement requirements-docs.txt
mkdocs serve

Parts of the docs are pinned against the code by cmd/mcp-tg/docs_contract_test.go — the tool list, the annotation census, the search filter values and the parseMode contract fail the test suite when they drift from what the server actually registers. Keep the heading and bullet shapes when editing those pages.

License

BSD 3-Clause License

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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