Marketmaster MCP Server

by marketmaster Your server? Claim it

answering

Marketmaster is answering right now. Last checked 12 min ago. 185 installs a week from npm. It exposes 6 tools.

Live Kalshi and Polymarket data: EV edges, cross-venue arbitrage, markets, and whale trades.

Installs per day peak 104 · avg 8 · +994% w/w

a month agotoday

Uptime history 5 days of history

5 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

805 ms

Response time

average over 24h

185

Installs / week

npm and PyPI

Nothing serious here today

Today is the operative word: we check Marketmaster every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://api.marketmaster.live/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://api.marketmaster.live/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://api.marketmaster.live/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://api.marketmaster.live/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://api.marketmaster.live/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

arbitrage

mm_arbitrage

Cross-platform price spreads for matched markets — buy-cheap / sell-dear venue per outcome. Indicative, gross of fees and slippage; not guaranteed arbitrage.

edges

mm_edges

Mispriced prediction-market edges (model fair value vs live price), ranked by edge size, across Kalshi and Polymarket.

market

mm_market

A single market's latest snapshot plus any live edges for it.

markets

mm_markets

Latest normalized market snapshots across venues (title, YES/NO price, 24h volume, close time).

status

mm_status

Your API key's tier, rate limits, and current usage.

whales

mm_whales

Recent large real-money trades (whale fills) across venues, newest first.

Endpoints

URL	Transport	State	Latency	Checked
https://api.marketmaster.live/mcp	streamable-http	answering	1097 ms	12 min ago

Alternatives to Marketmaster

same job, measured the same way

Bellwether

by bellwether

Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema.

3 tools answering

Polymarket Kalshi Arbitrage

by oddsrail

Cross-venue prediction markets for AI agents: Polymarket + Kalshi, costed and attributed

local only

Polymarket MCP Server

by mrlarryjohnson111

Live Polymarket data for agents: markets, insider-scored whale trades, leaderboards, wallet P&L

answering

Crosswire — Polymarket & Kalshi Arbitrage

by crosswire-api

Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.

2 tools answering

Prediction Market MCP

by reviewmyemails

Real-time Polymarket and Kalshi data, cross-platform arb detection, strategy signals

38 installs/wk local only

Rivo: Polymarket & Kalshi

by rivo

Polymarket & Kalshi whale trades, ranked traders, backtesting and Autopilot. $15/mo.

answering

Bellwether MCP

by bellwethermetrics

Live prediction market data from Polymarket and Kalshi with VWAP pricing and reportability.

59 installs/wk local only

Mantis

by alfred768

Cross-venue prediction market routing for AI agents with arbitrage, quotes, history, and signals.

6 tools answering

Marketmaster — questions

Answers built from our own checks of this server.

What can Marketmaster do?

It exposes 6 tools, read directly from the server on our last check. Among them: mm_arbitrage, mm_edges, mm_market, mm_markets, mm_status, mm_whales. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Marketmaster working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 805 ms. The bar chart above shows every period we have measured.

How do I connect Marketmaster?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Marketmaster need an API key?

No. Marketmaster completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Marketmaster?

It answers our handshake in 805 ms on average, which is faster than 18% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Marketmaster?

The npm package @marketmaster/mcp was installed 185 times in the last week. Week over week that is +994%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.