Negotiate Mcp
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.
- tools
- 5
- transport
- STDIO
- last updated
- May 3, 2026
Tools
5 toolsPublic tool metadata for what this MCP can expose to an agent.
discover_storeProbe a domain to check if it's negotiable. Returns the protocol descriptor.
Probe a domain to check if it's negotiable. Returns the protocol descriptor.
No parameter schema in public metadata yet.
list_productsEnumerate negotiable products at the store.
Enumerate negotiable products at the store.
No parameter schema in public metadata yet.
start_negotiationOpen a chat session with the merchant agent.
Open a chat session with the merchant agent.
No parameter schema in public metadata yet.
send_messageSend one shopper turn.
Send one shopper turn.
No parameter schema in public metadata yet.
read_historyRead the running history of a session.
Read the running history of a session.
No parameter schema in public metadata yet.
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negotiate-mcp
Model Context Protocol (MCP) server for the negotiate.v1 protocol. Once installed in Claude Desktop, Cowork, Claude Code, or any other MCP-aware client, your Claude gains five native tools for negotiating with any negotiate.v1-compliant store.
What you get
| Tool | Purpose |
|---|---|
discover_store(domain) | Probe a domain to check if it's negotiable. Returns the protocol descriptor. |
list_products(domain) | Enumerate negotiable products at the store. |
start_negotiation(domain, product_id) | Open a chat session with the merchant agent. |
send_message(next_url, message) | Send one shopper turn. |
read_history(history_url) | Read the running history of a session. |
The agent uses these like a human would use a browser: discover the store, pick a product, start a chat, send turns until the deal closes.
mcp-name: io.github.sanjana-pier39/negotiate-mcp
Install
Details
- Repository
- github.com/sanjana-pier39/negotiate-mcp
- Package
negotiate-mcp- Transport
- STDIO
- Registry
- MCP registry, active