Prediction Market Intelligence

markets.lacunaPublished by lacuna.marketsOfficial publisherv1.0.0Updated Oct 24, 2026

Polymarket in your AI: market rules, real fill costs, who is trading, top traders. Read-only.

VerifiedStreamable HTTPWeb executableFinanceData & Analytics

Overview

AI-generated overview

A read-only remote MCP server that lets an assistant search Polymarket markets and inspect prices, order books, trader flow, movers, leaderboards and wallet P&L

What you can do
Search Polymarket markets and events by keyword or link, with outcomes and current prices, and open one market's rules, fees, prices and price history across time windows. Check live order books for an outcome, including spread, depth near the mid and which side is heavier. See trading flow per market or event: dollars traded, net direction, wallet counts and biggest holders, or whale activity across Polymarket. Rank the most-traded open markets by price change over the last hour, day, week or month. Look up Polymarket's trader leaderboard by period and category, and review a wallet's track record, open positions and profit and loss.
When to use it
Useful when someone asks what Polymarket thinks about a topic, how likely an event is, what a market's resolution rules or fees are, how liquid it is, who is buying or selling, what is moving, or how a particular trader has performed. It is read-only, so it suits research and analysis rather than placing trades.
Requirements
A remote MCP endpoint reached over streamable HTTP; no package, environment variables or headers are declared. The manifest declares no authentication, though the endpoint may still require a connection setup. Network access to the remote host is needed.
Before you install
Read-only per the description, so it does not place trades or move funds. It reports public Polymarket market and wallet data, which is sent to and from the remote endpoint. Figures such as prices, depth and profit and loss are market data and should not be treated as financial advice.

Installation

In SourceWeft

  1. Open Prediction Market Intelligence in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/markets.lacuna%2Fprediction-market-intelligence/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

Tools

7

pm_market

Market brief

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 spread, change over 1h/24h/7d/30d with a 30-day range, volume and liquidity, taker fees, the resolution rules verbatim with their named source, and the live resolution status (not proposed / proposed and in its challenge window / disputed / resolved). For a multi-outcome event it lists every outcome and whether the prices add up to 100¢; add outcome to drill into one. Accepts a polymarket.com link or a slug from pm_search.

Parametersmarketrequiredoutcome

pm_book

Order book and fill cost

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, spread, dollar depth near the mid and which side is heavier. With amount it walks the book level by level for a market order (dollars to spend when buying, shares when selling) and returns shares filled, average and worst price, slippage against the mid, Polymarket's taker fee and the breakeven probability.

Parameterssideamountmarketrequiredoutcome

pm_flow

Who is trading

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: dollars traded and net direction per outcome, distinct wallets, the largest trades, the wallets that moved the most money, and for a single market the biggest current holders. With no market: the largest trades across all of Polymarket and the markets drawing that money. Traders appear by public username when they set one; pass a wallet to pm_portfolio for its full track record.

Parametershoursmarketmin_usdoutcome

pm_moves

Biggest price 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 or month, with old and current price, the move in percentage points, 24h volume and the slug for follow-ups (pm_flow shows who moved it). Markets that are merely settling and live sports games are left out unless include_games is true.

Parameterslimitwindowdirectioninclude_gamesmin_volume_24h_usd

pm_leaderboard

Top traders

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, weather, mentions). Returns Polymarket's own leaderboard ranked by profit or by volume, with usernames and wallet addresses to pass to pm_portfolio.

Parametersbylimitperiodcategory

pm_portfolio

Wallet positions

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 traded), open positions with entry and current price, unrealized P&L, exposure grouped by event, settled winnings not yet redeemed, and recent trades. Accepts a 0x wallet address, a polymarket.com profile link or a Polymarket username. Public on-chain data only.

Parameterswalletrequired

Version history

1
  1. v1.0.0LatestOct 13, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.

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