{"version":"2.1.234","anchor":"claude-mcp-serve-gains-transport-plumbing-still-stdio-only","canonical_anchor":"claude-mcp-serve-gains-transport-plumbing-still-stdio-only","heading":"claude mcp serve gains transport plumbing, still stdio only","tier":"internal","area":"MCP","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.234\/e\/claude-mcp-serve-gains-transport-plumbing-still-stdio-only","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.234","markdown":"### `claude mcp serve` gains transport plumbing, still stdio only\n\nThe MCP serve command reads transport and port options internally, but stdio is the only choice offered.\n\n**What**\n\nThe 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.\n\n**Evidence**\n\n`Start the Claude Code MCP server`\n\n- Area: MCP\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 3\/5\n- Present in the build but not switched on"}