MCP Servers

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.

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.

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.