"A guide to PostgreSQL architecture and internals" matching MCP servers:

Fetches category data from a Q&A service API and returns a markdown summary grouped by category.

Enables AI-driven customer support ticket processing, including classification, response generation, and automated email sending and Google Sheets logging.

A comprehensive MCP server for managing Zendesk Support, Talk, Chat, and Guide products, providing tools for tickets, users, organizations, search, and more.

Chia Health MCP – let AI agents guide patients from medication browsing to prescription delivery. 30 tools covering eligibility checks, medical intake, consent signing, provider review, Stripe ACP checkout, and ongoing care management. Covers GLP-1 weight loss (semaglutide, tirzepatide) and longevity treatments. HIPAA-compliant. All prescriptions evaluated by US-licensed providers across 50 states

Enables AI agents to manage Google Business Profile reviews, including a filterable review inbox, per-location stats, and honest review-request campaigns.

A single MCP server that provides a provider-neutral 14-tool contract for telephony operations (calls, SMS, recordings, transcripts, and number lifecycle), supporting hosted, fully local, or bring-your-own-key backends.

CallHub MCP is a Python-based tool that allows you to interact with the CallHub API through Claude. This tool provides a comprehensive set of functions for managing contacts, phonebooks, agents, teams, campaigns, and other CallHub resources.

An AI operations agent that reads from your own PostgreSQL database and policy documents, provides grounded answers with citations, and exposes read-only tools to external MCP clients while keeping writes behind a human approval gate.

Enables agents to search answered tickets, ask new questions, and answer waiting questions on the shared help desk, while providing read-only observation of visits.

This MCP server provides a single read-only tool to query official CPFL (electric utility) bill download data via a hosted, prepaid service without requiring platform credentials.

A remote MCP server for Zammad, enabling ticket management, search, and OAuth authentication.

Provides a Model Context Protocol server for WhatsApp, enabling session management, webhook normalization, and tenant-based message operations through a public API and private control plane.

Enables AI assistants to interact with the NinjaOne platform for managing devices, organizations, alerts, and tickets through a decision-tree tool-loading architecture.

Enables AI assistants to search and retrieve support tickets, add notes, close tickets, and access SLA policies through MCP tools, resources, and prompts over Streamable HTTP.

Enables AI assistants to manage customer support for a fictional candle shop, including order lookup, customer file access, and safe refund processing with server-side safety rules.

A connector that surfaces ~50 tools from 10+ integrated business systems (CRM, finance, support) via MCP, enabling an AI assistant to securely query and operate on correlated office data.

Enables to search, view, and interact with Intercom contacts and conversations, including sending customer-visible replies and internal notes.

Connects AI assistants to the Five9 cloud contact center, enabling them to manage campaigns, agents, IVR flows, and monitor call statistics through a secure, zero-dependency MCP server.

Enables MCP clients to manage and monitor a Five9 cloud contact center, including running campaigns, supervising agents, checking DNC lists, and building IVR call flows.

Enables interaction with WhatsApp Business tools and services through a unified API.