Gives Claude six tools to discover and negotiate at any store that speaks the negotiate.v1 protocol. You can search a directory of compliant merchants, probe domains for protocol support, browse product catalogs, and drive multi-turn price negotiations through a state machine that tracks offers, counteroffers, and session closure. The maintainers run a hosted endpoint at mcp.pier39.ai/mcp if you want zero-install setup, or you can wire the stdio transport into Claude Desktop with uvx. Three stores are live now: the Atlas reference implementation, Skout Organic snacks, and a ticket resale integration in onboarding. If you want Claude to haggle autonomously or build conversational commerce workflows, this is the wire.
claude mcp add --transport stdio sanjana-pier39-negotiate-mcp -- uvx negotiate-mcp