[BUG] `claude mcp add --transport streamable-http` fails with "Invalid transport type" error

Resolved 💬 4 comments Opened Apr 12, 2026 by patbl Closed Apr 12, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

claude mcp add does not accept streamable-http as a transport type, despite it being documented in the official Claude Code docs and referenced by third-party MCP integrations.

What Should Happen?

claude mcp add --transport streamable-http asana https://mcp.asana.com/v2/mcp (from https://code.claude.com/docs/en/mcp) shouldn't error.

Steps to Reproduce

$ claude mcp add --transport streamable-http asana https://mcp.asana.com/v2/mcp
Invalid transport type: streamable-http. Must be one of: stdio, sse, http

Claude Model

None

Is this a regression?

I don't know

Claude Code Version

2.1.101

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

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