Who actually creates MCP servers and where do they come from?

Anyone can create an MCP server implementation. Often, the service providers themselves will publish their own official MCP implementations. For example, AWS might release an official MCP server with tools for their various services, and the same is true for many other vendors. There is also a growing community of third-party MCP servers contributed by individual developers and open source projects. This open ecosystem is one of MCP's strengths: instead of waiting for a single company to integrate every service, anyone can build and share an MCP server that the rest of the community can use.