Switchboard

What it is

Switchboard is an MCP gateway server that aggregates multiple MCP backends into a single unified endpoint. Point your AI client at one URL and get access to all your MCP servers — with session persistence, built-in diagnostics, and network tools.

Why it exists

The MCP ecosystem is growing fast, which means you now have twelve MCP servers running on twelve ports and every AI client needs to be configured to talk to all of them individually. Switchboard sits in front of the chaos and presents one clean /mcp endpoint. Configure once, connect everything.

What makes it different

Single endpoint aggregation. All your MCP backends, one URL. Switchboard routes tool calls to the right backend and merges capability listings. Your AI client sees one server with all the tools.

Session persistence. MCP sessions survive reconnects and backend restarts. The session bouncer remembers who you are.

Built-in diagnostics. Health checks, latency tracking, and connection status for every backend. Know which MCP server is being flaky before your AI client times out.

Network tools included. Ships with built-in ping, DNS lookup, and port check tools. Because the first thing you do when something breaks is check if the network works.

Streamable HTTP transport. Implements the MCP Streamable HTTP transport spec over JSON-RPC 2.0. Modern, efficient, and compatible with the latest MCP clients.

The name

A switchboard routes connections between parties. Telephone operators used to sit at switchboards connecting callers. Switchboard connects AI clients to MCP servers. Same energy, fewer headsets.