MCP.Market

Marketmaster MCP server

online · 100% uptime
by marketmaster.live·live.marketmaster/mcp·v0.1.4
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Live Kalshi and Polymarket data: EV edges, cross-venue arbitrage, markets, and whale trades.

B79/100grade B
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Safety scan
B79/100

full report

Adoption
New

24 downloads/wk

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Marketmaster tools (6)

write = sends, deletes, buys or posts
  • mm_arbitrageFree

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

  • mm_edgesFree

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

  • mm_marketFree

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

  • mm_marketsFree

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

  • mm_statusFree

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

  • mm_whalesFree

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

Public scan report

scanner v0.1.10 · 2026-10-03 · same rubric, same numbers if you re-run it

1 low
  • Code scan2 source files scanned25/25
  • Live reliabilityremote reachable in 326ms20/20
  • Tool poisoning6 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenanceno repository listed3/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Marketmaster compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
79/100
higher than 58% of 48,255 servers
Tools
6
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
471 ms
faster than 31% of 30,031 servers
Downloads a week
24
more than 10% of 12,191 servers with a package

What its tools let an agent do: 6 read

Install Marketmaster in Claude Code, Cursor or VS Code

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

Marketmaster: common questions

Is Marketmaster MCP server safe?
Mostly: it is graded B (79/100). Read the Marketmaster safety report
How do I install Marketmaster?
It runs remotely at api.marketmaster.live. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Marketmaster need an API key?
Yes. The registry entry asks for MARKETMASTER_API_KEY, Authorization.
Is Marketmaster maintained?
The latest release is v0.1.4.
Is Marketmaster up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Marketmaster?
Servers from other publishers that do the same job: World Monitor MCP server.
How does Marketmaster compare with other MCP servers?
safety score 79/100 (higher than 58% of 48,255 servers); tools 6 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Marketmaster

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