Official MCP RegistryHosted servermcp.withone.ai

One

Connect AI agents to 250+ apps through a single MCP server with managed authentication.

Connect to Claude Code

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claude mcp add --transport http one https://mcp.withone.ai

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 “One”. Verified through the vendor namespace.