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MCP Directory CURATED DIRECTORY
693 MCP servers indexed
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MCP Server

MCP Server

Also called: MCP 服务端 · MCP 服务器

A service that exposes tools, resources, and prompt templates over MCP for agents to call — the largest category of project in this directory.

MCP ServerToolsResourcesPrompts
Schematic (simplified)

Responsibilities

An MCP server: declares which capabilities it provides (for clients to discover on connect), receives requests such as tools/call, performs the actual work (query a database, call an API, read/write files), and returns results in the protocol's format. It can be a local process or a remote HTTP service.

Boundary and risk

The server determines *what the agent can touch*. So when evaluating an MCP server, look at: the scope of permissions it requests, whether it reaches sensitive data, whether tool side effects are reversible, and whether error handling is clear. This site's FMRS score covers exactly these — reliability, security, maintenance, documentation, setup.

Common misconceptions

  • An MCP server is not a model and contains no model — it is only the tool provider the model calls via a client.
  • "Installed an MCP server" does not mean safe: its permissions and data boundary need separate review.

Related terms

MCP (Model Context Protocol) MCP (Model Context Protocol)MCP Client MCP ClientTool Manifest Tool ManifestCapability Discovery Capability Discovery

Sources

  1. Model Context Protocol — Server concepts
  2. MCP — Example servers

Compiled 2026-08-29 · This glossary is compiled from public papers, official specifications, and common industry definitions, and is updated as the field evolves. Corrections welcome.