Discovery for MCP is still an unsettled question. An adjacent protocol, A2A, has proposed using /.well-known for discovery. At the rate things are moving this won't be a problem for too much longer.
But yes, currently, you still need to read the docs to know if/where on my server you can find an MCP endpoint.
Also I believe there are some open source directories and Anthropic themselves are planning to launch or have launched a directory, so an NPM for MCPs.
But yes, currently, you still need to read the docs to know if/where on my server you can find an MCP endpoint.