# marketmaster.live MCP server (slim)

> marketmaster.live MCP server, an MCP server by marketmaster.live, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Live Kalshi and Polymarket data: EV edges, cross-venue arbitrage, markets, and whale trades.

- Full: https://www.anchorterminal.com/tools/marketmaster-mcp.md (~850 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/tools/marketmaster-mcp.json · canonical https://www.anchorterminal.com/tools/marketmaster-mcp
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

# marketmaster.live MCP server

> Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: MCP server, by marketmaster.live (https://marketmaster.live/developers)
- Category: Data providers (https://www.anchorterminal.com/categories/data-providers.md)
- Listed because: It's published in the registry under marketmaster.live, a namespace the registry only gives to whoever proves they control that domain.
- What the official MCP registry says: Live Kalshi and Polymarket data: EV edges, cross-venue arbitrage, markets, and whale trades.

## Facts

- MCP registry: `live.marketmaster/mcp` 0.1.4
- Endpoint: https://api.marketmaster.live/mcp (streamable HTTP)
- Package: npm `@marketmaster/mcp` (stdio)
- Website: https://marketmaster.live/developers
- npm downloads a week: 31
- Registry entry updated: 2026-09-15

## Tools

- Tools it lists (6, about 650 tokens of context, `tools/list` without credentials, checked 2026-10-04 22:25 UTC):
  - `mm_edges` (read-only): Mispriced prediction-market edges (model fair value vs live price), ranked by edge size, across Kalshi and Polymarket.
  - `mm_markets` (read-only): Latest normalized market snapshots across venues (title, YES/NO price, 24h volume, close time).
  - `mm_market` (read-only): A single market's latest snapshot plus any live edges for it.
  - `mm_arbitrage` (read-only): Cross-platform price spreads for matched markets — buy-cheap / sell-dear venue per outcome. Indicative, gross of fees and slippage; not guaranteed arbitrage.
  - `mm_whales` (read-only): Recent large real-money trades (whale fills) across venues, newest first.
  - `mm_status` (read-only): Your API key's tier, rate limits, and current usage.
- How its tools read to an agent (0 errors, 5 warnings, 1 note, about 650 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):
  - warn TC11 mm_arbitrage: 2 parameters without a description: limit, offset
  - warn TC11 mm_edges: 4 parameters without a description: category, limit, offset, platform
  - warn TC11 mm_market: 1 parameter without a description: source
  - warn TC11 mm_markets: none of its 4 parameters has a description
  - warn TC11 mm_whales: 3 parameters without a description: limit, offset, source
  - note TC24 server: 6 of 6 tools have no outputSchema

- JSON: https://www.anchorterminal.com/api/v1/tools/marketmaster-mcp.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming