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Which MCP servers are Lacuna's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-27

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Whose server it is
  • Registry namemarkets.lacuna/prediction-market-intelligenceverified in the MCP registry

The registry name sits under lacuna.markets. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-27
  • Stateanswerschecked 2026-10-27
  • Tools7
  • Server calls itselfprediction-market-intelligence
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-27 the server answered initialize and tools/list without a sign-in. First answer in 295 ms.

Should an agent connect itConnect it
  • Its tools do every use case we checked: Check a market's resolution rules before buying; Estimate the real cost of an order at a given size; Track where money is flowing in a market.

Once connected

  • For "Check a market's resolution rules before buying", the likely first call is pm_market.
  • For "Estimate the real cost of an order at a given size", the likely first call is pm_book.
  • For "Track where money is flowing in a market", the likely first call is pm_flow.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 7, the first on 2026-10-27
  • INITE MCP score100 of 100answers 100 · does the job 100 · definitions 100 · context 100 · connects 100
  • What an agent can do with it3 of 3 use cases
  • Answered100% of days7 of 7 daily checks
  • Median first answer257 ms
  • Space in an agent's context≈ 2,063 tokensthe definitions of all its tools (7), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results0 of 7 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · Check a market's resolution rules before buying
  • can do · Estimate the real cost of an order at a given size
  • can do · Track where money is flowing in a market

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers7 tools · read 2026-10-27
  • pm_search

    Use this first when the user asks what Polymarket thinks about a topic, how likely something is, or names a market without a link. Searches every Polymarket market by keyword (Polymarket's own full-text search) or by a polymarket.com link…

  • pm_market

    Use this when the user asks about one Polymarket market or event: its price, what exactly decides how it resolves, whether an outcome has been proposed or disputed, when it ends, its fees, or how it has moved. Returns prices, bid/ask and…

  • pm_book

    Use this when the user asks how liquid a Polymarket market is, how much a trade of a given size would really cost, how far it would move the price, or what the order book looks like. Returns the live book for one outcome: best levels…

  • pm_flow

    Use this when the user asks who is buying or selling a Polymarket market, why its price moved, where the money is going, who the biggest holders are, or (with no market) what the whales are doing across Polymarket. For a market or event…

  • pm_moves

    Use this when the user asks what is moving, trending or changing on Polymarket, what moved overnight or this week, or for the biggest gainers and losers. Ranks the 300 most-traded open markets by price change over the last hour, day, week…

  • pm_leaderboard

    Use this when the user asks who the best or biggest Polymarket traders are, who made the most money today, this week, this month or all time, or who leads in a category (politics, sports, crypto, economics, finance, culture, tech…

  • pm_portfolio

    Use this when the user asks what a Polymarket trader or wallet holds, how good a trader is, or wants to size up a wallet seen in pm_flow. Returns the track record (all-time and 30-day profit and loss, volume, leaderboard rank, markets…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "prediction-market-intelligence": {
      "type": "http",
      "url": "https://mcp.lacuna.markets/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http lacuna https://mcp.lacuna.markets/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.lacuna.markets/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.