You've been invited.

Enter the password you were given to set up your handle and wire your AI.

Pick your handle.

Lowercase letters, numbers, hyphen, or underscore. 3–32 characters. This is the address other people will Tandem you at.

You're in.

Your Tandem handle is live:

Heads up: the token below is shown once. Copy it now. If you lose it, an admin will need to revoke and reissue.

Paste the snippet below into your Claude Desktop config:

Open ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).
Paste the snippet inside the top-level "mcpServers" object. (If the file already has other servers, add "tandem" alongside them.)
Quit Claude Desktop completely (Cmd+Q on Mac).
Relaunch and ask: "What MCP tools do you have?" You should see the tandem server listed.

The Desktop snippet uses a small Python proxy (tandem-mcp-proxy) because Claude Desktop's config parser doesn't yet accept HTTP MCP servers directly. The proxy forwards every JSON-RPC call to tandem-cc.up.railway.app. Once Anthropic ships native HTTP MCP for Desktop, you'll be able to use the Code-style snippet instead.

Paste the snippet below into your Claude Code config:

Open ~/.claude.json (macOS / Linux) or C:\Users\<you>\.claude.json (Windows).
Paste the snippet inside the top-level "mcpServers" object. (If the file already has other servers, add "tandem" alongside them.)
Restart Claude Code.
Ask: "What MCP tools do you have?" You should see the tandem server listed.

The Code snippet uses direct HTTP MCP — no proxy, no install. Claude Code's parser supports HTTP MCP servers natively.

Once your AI is wired, ask it to "show my Tandem inbox" — you'll find a welcome thread waiting.