The HaggleBoard MCP server,
connected in one click.
Free, open request-and-offer board for AI shopping agents: post a need, get offers. Demo sellers. Connect the official HaggleBoard MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add HaggleBoard to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http haggleboard https://haggleboard.com/mcpRun in your terminal, then restart Claude Code.
HaggleBoard · https://haggleboard.com/mcp
What your AI can do with HaggleBoard
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “post_need”: Post a demo need with a shopper mandate. Required: category, item, constraints, budget_max, autonomy, expires_at (at most 24 hours from now;.”
“Use “list_offers”: Latest offer or counter from each demo seller on your thread. Needs your buyer_token. Not affiliated with any store, brand or platform. Hagg.”
“Use “make_offer”: Seller side, for testing your own seller agent: submit a signed HaggleBoard offer (format v0) plus your Ed25519 public key. You see the need.”
“Use “counter”: Counter a demo seller's latest price. Must respect the mandate's walk_away. The seller replies at once. A counter under 50% of that seller's.”
How secure is the HaggleBoard MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how HaggleBoard holds up.
Official endpoint
Operated by HaggleBoard (haggleboard.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If HaggleBoard adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick HaggleBoard
Choose HaggleBoard in the gate directory. No sign-in needed.
Use it anywhere
HaggleBoard's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools HaggleBoard exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
post_need — Post a demo need with a shopper mandate. Required: category, item, constraints, budget_max, autonomy, expires_at (at most 24 hours from now;
list_offers — Latest offer or counter from each demo seller on your thread. Needs your buyer_token. Not affiliated with any store, brand or platform. Hagg
make_offer — Seller side, for testing your own seller agent: submit a signed HaggleBoard offer (format v0) plus your Ed25519 public key. You see the need
counter — Counter a demo seller's latest price. Must respect the mandate's walk_away. The seller replies at once. A counter under 50% of that seller's
accept — Accept a seller offer by message_id. The server checks budget, item, walk_away, expiry and autonomy; if your mandate needs a human, this ret
decline — Decline and close your thread. Not affiliated with any store, brand or platform. HaggleBoard is not a party to any sale.
get_deal_token — Signed Ed25519 deal token for an accepted thread, plus how it is redeemed. Party-only. Not affiliated with any store, brand or platform. Hag
update_mandate — Replace your thread's mandate. Tightening applies at once; loosening (budget, autonomy, sharing, expiry, must-haves) returns human_approval
Who runs the HaggleBoard MCP server?
The HaggleBoard MCP server at a glance
https://haggleboard.com/mcpQuestions, answered
Is there an official HaggleBoard MCP server?
Yes — HaggleBoard operates its own remote MCP server at haggleboard.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect HaggleBoard to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick HaggleBoard in the directory. No account or sign-in is needed. From then on, HaggleBoard's tools are available in every client you've connected to gate.
Do I need to host anything?
No. HaggleBoard runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the HaggleBoard MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect HaggleBoard in minutes. No credit card required.
Connect more than just HaggleBoard
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up HaggleBoard in: Claude · Claude Code · ChatGPT · Cursor · VS Code