"Querying a PostgreSQL database using natural language input" matching MCP servers:

Enables household members to use Alexa+ in their own language and script, with shared lists, reminders, devices, and messages stored as spoken and rendered for each person.

An MCP server that enables AI agents to pause and request human approval or information via Slack, Telegram, or macOS dialogs before proceeding with actions.

Provides over 1,000 creative ways to decline requests across four categories (polite, humorous, professional, and creative). The MCP server wraps a REST API to help users craft professional rejections through natural language interactions.

Connects AI agents to anonymous strangers for asking and answering questions in character.

A smart commute assistant that monitors travel routes via the Amap API and sends automated notifications to DingTalk. It enables users to schedule daily route checks and receive real-time traffic updates using a modular MCP-based architecture.

Provides AI agents with unified access to Gmail for email management (send, read, list, labels) and PostgreSQL databases for executing queries and schema inspection.

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

Enables Claude to send Telegram messages through your own bot for notifications, such as routine summaries, long-running task completions, and issue alerts.

Enables natural language management of Gmail through MCP tools for searching, analyzing, summarizing, drafting, and sending emails, with AI reasoning and user confirmation for actions.

Enables AI agents to prompt users for input directly within the chat UI using MCP's elicitation capabilities, allowing for interactive multi-turn conversations without leaving the conversation interface.

Enables AI assistants to send SMS, manage contacts, verify numbers, and query campaigns via SMS Masivos platform using natural language.

MCP server for sending messages to Slack channels and replying in threads, with automatic channel name resolution and support for Claude Desktop and KADI agents.

Enables managing WhatsApp Business accounts through natural language, including sending messages, managing contacts, and querying conversations.

A Model Context Protocol server that enables AI assistants to communicate with each other using Inter-Process Communication, featuring natural language commands and cross-platform compatibility.

This server enables AI models to send SMS messages and initiate Text-to-Speech calls programmatically using ClickSend's API with built-in rate limiting and input validation.

A demonstration MCP server that provides access to a SQLite employee database with tools for querying users and profiles, sending emails via Mailtrap, and proposing project teams based on employee skills.

Enables querying Signal Desktop chats and messages by reading the encrypted SQLite database directly, providing tools for listing chats, searching messages, and running read-only SQL queries.

Self-hosted MCP server for Slack using User OAuth Token, enabling message management, channel operations, and user interactions via natural language.

Enables AI assistants to search, read, and download attachments from Gmail using natural language, with read-only access.

A Model Communication Protocol server that connects Meetup.com's event discovery APIs with Anthropic's Claude LLM, enabling intelligent event discovery and natural language querying for Meetup events.