MCP Servers

MarkItDown-MCP is the MCP server in Microsoft's MarkItDown repository. Its `convert_to_markdown(uri)` tool converts local files, web pages, or data URIs into Markdown for LLM workflows.

Serena is an open-source MCP toolkit for coding agents. It uses language servers or an optional JetBrains backend to provide symbol search, reference lookup, rename, and structured code editing, with official setup for Codex CLI and App.

A Python MCP application framework for building servers, clients, and interactive apps through one API, with stdio and Streamable HTTP transports.

Google's open-source database MCP server and custom-tool framework connects many databases to MCP clients while letting operators constrain agent actions through prebuilt or parameterized tools.

MCP Inspector is the official Model Context Protocol debugging tool. Its Web, CLI, and TUI clients connect to MCP servers and inspect tools, resources, prompts, transports, authentication, and MCP Apps.

Bytebase’s open-source database MCP server connects six database engines and exposes object discovery and SQL execution over stdio or HTTP.

An official Grafana MCP server that lets compatible AI clients discover dashboards and data sources, query Prometheus metrics and Loki logs, and work with alerts, incidents, and OnCall flows within existing Grafana permissions, with read-only, query-free, and network-hardening controls.

MCPHub is a self-hosted gateway between AI clients and multiple MCP servers, combining endpoint aggregation, group routing, access control, credential isolation, runtime logs, and optional vector-based smart routing.

A native Go MCP server that exposes Kubernetes and OpenShift resources, pod diagnostics, events, Helm operations, and optional ecosystem toolsets, with controls for read-only access, denied resources, and RBAC-scoped identities.

OpenAI's self-hosted client for connecting private or localhost MCP servers to ChatGPT, Codex, the Responses API, and AgentKit through Secure MCP Tunnel without exposing the MCP listener to the public internet.