Claude Code

Claude Code connects to SealGate as a remote MCP server over streamable HTTP. You add it once with Claude Code's own claude mcp add command.

The SealGate desktop client configures Claude Code for you. Use this page if you don't run the desktop client, or want to set it up by hand.

Prerequisites

Claude Code installed (claude --version works in your terminal).
A SealGate account at dashboard.sealgate.ai.

1. Get Your Connection URL

In the dashboard, open Settings, find Api key / MCP URL, click Get MCP URL and pick Claude Code. You get a URL with your API key and the ?client=claude-code tag:

https://mcp.sealgate.ai/mcp/<your-api-key>/?client=claude-code

Treat this URL like a password. The host differs per environment, so always copy it from your own dashboard.

2. Add SealGate

claude mcp add --transport http --scope user sealgate 'https://mcp.sealgate.ai/mcp/<your-api-key>/?client=claude-code'

--scope user makes SealGate available in every project. This is the same command the desktop client runs.

Use the keyless URL, so no credential lands in your config:

claude mcp add --transport http --scope user sealgate https://mcp.sealgate.ai/mcp

Then start claude, run /mcp, select sealgate and authenticate in the browser. SealGate recognizes Claude Code from its sign-in, so no ?client= tag is needed.

3. Verify

Run claude mcp list and check that sealgate shows as connected. Then ask Claude Code:

Call the sealgate builtin_whoami tool to confirm your connection to the SealGate gateway.

The call appears under Sessions in the dashboard.

Troubleshooting

sealgate already exists: run claude mcp remove sealgate --scope user, then add it again.
401 Unauthorized: the API key was rotated or mistyped. Copy a fresh URL from Settings.
Tools missing in an open session: restart claude after adding the server.

Desktop Client

Auto-configure Claude Code, Cursor, VS Code and Codex.

Claude Code MCP docs

Anthropic's guide to MCP servers in Claude Code.