An approved Claude Code MCP call is stopped when a redirect changes the destination, then allowed only after scheme, host, port, TLS identity, and resolved network range match the transport binding

Claude Code approved one MCP server. The request went somewhere else.

An MCP approval can bind to a tool name while DNS, redirects, proxies, and service discovery send the request elsewhere. Pin the transport identity at dispatch time.

August 31, 2026 · 5 min · 918 words · Thomas De Vos
Read Claude Code approved one MCP server. The request went somewhere else.