Kalshi Prediction Markets MCP Server

io.github.cejor6/kalshi-mcp-server

Repository Registry

What is the Kalshi Prediction Markets MCP server?

MCP server for Kalshi prediction markets: native RSA-PSS auth, rate limiting, demo/prod safety.

How to install Kalshi Prediction Markets

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

KALSHI_API_KEY_ID
required
Kalshi API key ID from https://kalshi.com/account/profile
KALSHI_PRIVATE_KEY_PATH
Filesystem path to the RSA private key PEM. Set this or KALSHI_PRIVATE_KEY_PEM.
KALSHI_PRIVATE_KEY_PEM
secret
Inline PEM contents, for hosted deploys without filesystem access.
KALSHI_ENV
demo or prod. Defaults to demo for safety.
KALSHI_ALLOW_PROD
Must be 1 for the server to start with KALSHI_ENV=prod. Defaults to 0.
KALSHI_TRADING_ENABLED
Must be 1 for order-placement tools to operate. Read-only by default (0).

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

{
  "mcpServers": {
    "kalshi-mcp-server": {
      "command": "uvx",
      "args": [
        "kalshi-mcp-server"
      ],
      "env": {
        "KALSHI_API_KEY_ID": "<YOUR_KALSHI_API_KEY_ID>",
        "KALSHI_PRIVATE_KEY_PATH": "<YOUR_KALSHI_PRIVATE_KEY_PATH>",
        "KALSHI_PRIVATE_KEY_PEM": "<YOUR_KALSHI_PRIVATE_KEY_PEM>",
        "KALSHI_ENV": "<YOUR_KALSHI_ENV>",
        "KALSHI_ALLOW_PROD": "<YOUR_KALSHI_ALLOW_PROD>",
        "KALSHI_TRADING_ENABLED": "<YOUR_KALSHI_TRADING_ENABLED>"
      }
    }
  }
}

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