Official MCP RegistryHosted servermcp.arca.build
Arca
Private data vault storing structured data, semantic memory, and skills for AI assistants
Connect to Claude Code
Copyclaude mcp add --transport http arca https://mcp.arca.build/mcpVendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.
Endpoints
- https://mcp.arca.build/mcpstreamable-http
Published in the official MCP registry as “Arca”. Verified through the vendor namespace.