Mmcp.market

Mantis MCP server

by Alfred768·io.github.Alfred768/mantis·v1.1.4
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Cross-venue prediction market routing for AI agents with arbitrage, quotes, history, and signals.

C64/100grade C
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Safety scan
C64/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Mantis tools (6, 1 write)

write = sends, deletes, buys or posts
  • execute_urlwrite actionFree

    Get a deep link URL to place a trade on the best venue for a given market. The URL has a referral code embedded so the platform earns commission. Call this to get the URL, then direct the user to open it.

  • get_arbitrageFree

    Find live cross-venue arbitrage opportunities — markets where the same event trades at different prices on Polymarket vs Kalshi vs other venues. Can also estimate fee-normalized net spread for a position size.

  • get_historyFree

    Get historical OHLCV-style prediction market candles over a time range, including the latest stored depth snapshot within each bucket when available. Can also export CSV text or base64-encoded Parquet.

  • get_quoteFree

    Get the live probability, liquidity, and volume for a prediction market across all venues. Can also return venue order book depth and size-aware VWAP/slippage estimates.

  • get_unmet_demandFree

    Find questions that users are searching for but no prediction market exists. Useful for discovering new market creation opportunities or identifying emerging topics with real trading interest.

  • route_marketFree

    Find the best prediction market for a natural-language question or trading intent. Returns the best cross-venue match, current probability, liquidity, and any arbitrage opportunity between venues.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 231ms20/20
  • Tool poisoning6 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityno repository or website to verify2/10
Overall 64/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http mantis https://mantiss.store/mcp
Add to Cursor

Mantis: common questions

Is Mantis MCP server safe?
With care: it is graded C, so read the findings first (64/100). Read the Mantis safety report
How do I install Mantis?
It runs remotely at mantiss.store. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Mantis need an API key?
Yes. The registry entry asks for Authorization.
Is Mantis maintained?
The latest release is v1.1.4.
Is Mantis 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 Mantis?
Servers from other publishers that do the same job: CCXT MCP server and World Monitor MCP server.

Alternatives to Mantis

Same job from other publishers: the closest match first, then the best rated.

  • CCXT
    Official CCXT MCP server - Market data and trading across 100+ exchanges and prediction markets
    A
  • World Monitor
    Live markets, conflicts, country risk, chokepoints, energy, and China decision signals. 75 tools.
    A

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