Base URL of the HydraDNS controlplane API. Inside a container, 'localhost' means the container itself, not the host running the controlplane. On Docker Desktop (Mac/Windows) the default below resolves automatically. On plain Docker Engine (Linux) either run the container with --add-host=host.docker.internal:host-gateway, or use --network host with http://localhost:8080 instead. Full instructions: docs/mcp.md in the repo, 'Running it -> As the container image'.
HYDRA_TOKEN
Yes
Bearer token for the HydraDNS API, obtained via `hydra login` or the setup wizard. Grants whatever access the token's account has; MCP_ROLE narrows what the MCP tool layer will call, not what the token itself can do against the API directly. Secret.
MCP_ROLE
No
Permission scope for this MCP session: admin (default, every tool), operator (every mutating tool except toggle_engine), or reporter (read-only tools only). Any unrecognized value safe-defaults to reporter.