Official MCP RegistryHosted servermcp.quackr.io

Quackr

Phone number verification, OTP testing, and temporary number services via Quackr.

Connect to Claude Code

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claude mcp add --transport http quackr https://mcp.quackr.io/

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 “Quackr”. Verified through the vendor namespace.