MCP transport method

[Louisfrn]

Hi everyone,

I'm a student and still learning about the different transport methods (SSE vs. stdio) used with MCP servers. I’d appreciate some confirmation on a few hypotheses I’ve developed.

What I Understand So Far (need confirmations)

Does launching the MCP server with mcpo—converting it to HTTP endpoints—make it impossible to connect to a custom MCP client?

• Using mcpo with an SSE-based MCP server:
  Due to the asynchronous and continuous nature of the SSE flow, the REST API generated via mcpo can offer additional features—such as dedicated endpoints for receiving real-time events—which might be more relevant for interactive, live applications.

• Using mcpo with a stdio-based MCP server:
  In contrast, the generated API in this case is ideal for one-off, synchronous request/response interactions. However, it might require extra effort to emulate or manage scenarios that require continuously updated information.

Thanks in advance for your help!