HaggleBoard

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Runs in the cloud
• Transport: Streamable HTTP
• Category: Online shops & payments

Install

Pick the AI app you use, then copy the settings.

You need

• Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

https://haggleboard.com/mcp

claude mcp add --transport http haggleboard https://haggleboard.com/mcp

{
  "mcpServers": {
    "haggleboard": {
      "url": "https://haggleboard.com/mcp"
    }
  }
}

{
  "servers": {
    "haggleboard": {
      "type": "http",
      "url": "https://haggleboard.com/mcp"
    }
  }
}

https://haggleboard.com/mcp

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.

• 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; a later value is refused with E_EXPIRY_TOO_LONG). share is optional; share.budget_band defaults to false, and when true sellers see a 50-wi

• 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. HaggleBoard is not a party to any sale.

• 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 through a disclosure filter and only your own messages. Not affiliated with any store, brand or platform. HaggleBoard is not a party to any

• 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 current price is auto-declined without a seller move, and 3 of those pause that seller for 15 minutes (E_COOLDOWN). Not affiliated with any

• 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 returns human_approval instead: relay it to your human, never open it yourself. Approval only proves someone holding the link pressed Approve (

• 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. HaggleBoard is not a party to any sale.

• update_mandate

  Replace your thread's mandate. Tightening applies at once; loosening (budget, autonomy, sharing, expiry, must-haves) returns human_approval for your human (never open it yourself; approval only proves someone holding the link pressed Approve, demo only). Not affiliated with any s

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 9, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified against the domain haggleboard.com (the registry checks domain ownership)

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 344 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 8 tool descriptions and found no hidden instructions to the AI

Compared with others in Online shops & paymentsi

• More stars than 0% of the other 2572 servers in this category
• Published to the registry more recently than 70% of the other 2572 servers in this category
• Basic checks equal to or better than 100% of the other 2572 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

pip install cryptography   # jsonschema optional; a built-in checker is used if absent

The agents are rule-based and need no API keys. Every message is checked against its schema, offers and counters are signed with Ed25519, and nonces and expiry are enforced. The demo also shows that a replayed message, a tampered price and an expired offer are all rejected.