Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.234 Home All releases olderv2.1.233 v2.1.235newer
Claude Code v2.1.234

claude mcp serve gains transport plumbing, still stdio only

Under the hood
Useful1 Signal3
MCP

The MCP serve command reads transport and port options internally, but stdio is the only choice offered.

Transport and port options are parsed and reported in telemetry, but only stdio is registered and reportable.

What

The MCP server command now reads transport and port options internally and reports the transport in its startup telemetry. The reported value is always stdio, and the command registers only -d, --debug and --verbose, so there is no way to pick another transport on this build.

Evidence

Start the Claude Code MCP server

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.234 →