"MCP servers built with alternative programming languages" matching MCP servers:

Enables AI agents to access user and message data through MCP resources, providing REST API integration for user management with paginated lists and thread tracking.

Enables Claude to research HubSpot accounts, draft property updates, notes, and owner tasks, and request a human decision tied to the exact proposed change. Approved changes can be applied only after a signed click, with guardrails, retries, and an audit trail.

Enables interaction with Twilio API services including messaging, voice, and Studio flows through Docker deployment. Supports both API Key and Auth Token authentication for managing calls, messages, phone numbers, and automation workflows.

A Model Context Protocol server providing file search and question tools for AI models. Enables keyword search in files with line numbers and integration with external chat services.

Enables AI agents to manage e-commerce operations (products, carts, clients) through WhatsApp via Chatwoot, using MCP tools for inventory, cart, and customer management.

An MCP server that enables AI applications to send text, HTML, and template-based emails using SendGrid. It supports file attachments, CC/BCC recipients, and easy deployment via Python or Docker.

Lets AI assistants list chat rooms, read messages, and send messages on TalkToPlanB, a self-hosted WhatsApp-alternative messenger.

An MCP server that automates HR onboarding tasks including employee management, email, ticketing, meeting scheduling, and leave management, enabling AI agents to handle new-hire workflows from a single prompt.

Enables uploading local files to Slack with a message, supporting channels, DMs, threads, and file titles.

Enables Claude to make outbound phone calls through Vapi API, supporting any call type and language with features like call initiation, result polling, and structured data extraction.

Turns team chat (Slack, Discord, MS Teams, Mattermost) into a living knowledge base - a typed knowledge graph plus auto-generated wiki - exposed to AI agents through a 28-tool MCP server with semantic search, expert finding, and decision tracing.

Enables AI agents and CLI workflows to send push notifications to a user's phone when a task finishes, fails, or needs attention. Exposes a notify_human tool with a markdown-capable message and an optional channel tag, keeping the send key out of the model's context.

Enables AI chat sessions to exchange messages and structured data with each other, preserving provenance and conversation threads, so work in one chat can be reused in another without manual copying.

Lets an AI agent ask its owner first, on their phone, before doing something irreversible: ask_approval blocks until a person answers and distinguishes DENIED from NO ANSWER, so a timeout is never read as consent. send_notification covers one-way alerts with priorities and quiet hours.

A Python bridge for interacting with the macOS Messages app using MCP (Multiple Context Protocol). Simple install using uvx mac-messages-mcp

A paid MCP server that lets AI agents send SMS messages to US phone numbers via x402 micropayments, with automatic compliance and opt-out handling.

Enables AI assistants to draft content such as PR descriptions, tickets, or messages, with a review window for live preview, editing, and approval before submission.

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 read-only access to a single Gmail mailbox, listing emails within a date range and retrieving full headers and body text of individual emails, with deep-link jump URLs for each result.

Lets AI agents notify people through a self-hosted Cue server: per-person budgets for each agent, quiet hours in the recipient's time zone, digests, importance ceilings and human approval with expiry, over push, e-mail, SMS, Telegram, Slack and webhooks.

MCP server that enables AI agents to place real Telegram voice calls and speak a message aloud via TTS, with configurable repeats and call handling.

Discover and connect your agents with other agents via A2A protocol. Share resources for free or fee.

A minimal MCP server for sending Slack messages, supporting both bot and user tokens with concurrent safety and an AI bot signature in user-token mode.

Enables MCP-capable agents to gate their actions behind human consent, checking consent rules and requesting approval via Telegram before proceeding with high-stakes operations.

Enables reading Apple App Store customer reviews, publishing developer responses, and deleting them via the App Store Connect API with a narrow Customer Support role.

A send-only Telegram MCP server enabling agents to message you or named contacts via a Telegram bot, with audit copies to the owner.

Self-hosted, multi-account Gmail MCP server for Claude and Codex over Streamable HTTP, with explicit account aliases, owner-only OAuth, and encrypted credential storage. Supports searching and reading email, creating drafts, and optional sending and label changes.

A read-only MCP server that lets Claude Desktop interact with Apple Mail on macOS via AppleScript. It enables listing mailboxes, searching emails, and reading email content without making network calls.

A Model Context Protocol server that enables LLMs to send, edit, and delete Discord messages using webhooks. It supports text content, rich embeds, and thread interactions with strict Zod-based parameter validation.

Self-hosted digests of your Telegram channels over MCP: AI summaries, the last digest and raw per-channel messages. Works with OpenAI, Anthropic or local Ollama.