"filesystem" matching MCP servers:

Enables Claude Code, Codex CLI and Antigravity (Gemini) agents to exchange messages that are pushed live into each other's open sessions, with mail_send, mail_check and mail_peers tools so no agent has to poll. Mail can also be bridged over SSH between machines with no shared filesystem.

Enables two or more Claude Code terminals on the same machine to communicate by registering and sending messages via the local filesystem.

A unified MCP server that combines GitHub, local Git, Slack, web fetching, persistent memory, and filesystem tools into a single configuration entry, with dangerous capabilities like shell execution disabled by default.

Enables MCP clients to call all 185 Telegram Bot API methods over stateless Streamable HTTP at /mcp, including rich messages, meta-mode, Zod validation, rate limiting, and retries. It runs as a Cloudflare Worker, supporting Bot API operations by file_id, URL, or bytes while local-filesystem-dependent features return errors.