Official MCP RegistryHosted serverwww.onlyworlds.comv1.0.0

OnlyWorlds

Read and write typed fictional worlds (22 linked element types) via the OnlyWorlds open standard.

Connect to Claude Code

Copy

claude mcp add --transport http onlyworlds https://www.onlyworlds.com/mcp

Vendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.

Endpoints

Published in the official MCP registry as “com.onlyworlds/mcp”. Verified through the vendor namespace.