What is the Casafari MCP gateway, and what does `list_servers` do?

The gateway is the Casafari MCP server: it signs you in, checks your rights on every call, and forwards each tool to the service that owns it; list_servers is a tool of the gateway itself.

list_servers takes no input. It returns every tool group your account can use, with each group's title, description, and usage instructions (for example, which tool to start with). Call it before you use a product for the first time.

tools/list already returns only the tools your subscription covers, and rights are checked again on every call, so a subscription change takes effect on your next request. If tools/list is empty or a tool is missing, your subscription doesn't cover it.

See: Gateway and list_servers.