x-api-key header.
Claude Code
Add the server with your API key as a header, then ask a question in a new session.Other MCP clients
Any client that supports remote MCP servers over Streamable HTTP and lets you set a request header can connect. Addhttps://api.quartr.com/public/mcp as a remote HTTP server and set the x-api-key header to your API key. The configuration usually looks like the .mcp.json example above.
Your own agents and scripts
Agents and scripts you build yourself send thex-api-key header on every request to the server URL, the same way they call the REST API. Most MCP client libraries accept custom headers when you create the transport.

