Kalshi MCP Server

by 9crusherio.github.9crusher/mcp-server-kalshiv0.2.2

MCP server for end-to-end trading on Kalshi prediction markets: discover, research, trade.

30Pythonstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Active21d ago

Install Kalshi MCP server

claude mcp add kalshi-9crusher -e KALSHI_API_KEY='<kalshi-api-key>' -- uvx mcp-server-kalshi

{
  "mcpServers": {
    "kalshi-9crusher": {
      "command": "uvx",
      "args": [
        "mcp-server-kalshi"
      ],
      "env": {
        "KALSHI_API_KEY": "<kalshi-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "kalshi-9crusher": {
      "command": "uvx",
      "args": [
        "mcp-server-kalshi"
      ],
      "env": {
        "KALSHI_API_KEY": "<kalshi-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "kalshi-9crusher": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-server-kalshi"
      ],
      "env": {
        "KALSHI_API_KEY": "<kalshi-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "kalshi-9crusher": {
      "command": "uvx",
      "args": [
        "mcp-server-kalshi"
      ],
      "env": {
        "KALSHI_API_KEY": "<kalshi-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
KALSHI_ENV	—	—	demo (sandbox) or prod (real money)
KALSHI_API_KEY	—	yes	Kalshi API key ID; required only for portfolio/order tools
KALSHI_PRIVATE_KEY_PATH	—	—	Path to your RSA private key .pem; required for authenticated tools
BASE_URL	—	—	Optional explicit REST base override (must include /trade-api/v2)

Freshness

Active — last maintenance signal 21d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-19 · 21d ago · GitHub
Latest release
2026-08-23 · 48d ago · GitHub · v0.2.4
Package published
no data · npm/PyPI
Registry entry updated
2026-07-09 · 3mo ago · official registry · v0.2.2

FAQ

›How do I install the Kalshi MCP server in Claude Code?

Run: claude mcp add kalshi-9crusher -e KALSHI_API_KEY='<kalshi-api-key>' -- uvx mcp-server-kalshi. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Kalshi require an API key?

Yes. It expects KALSHI_API_KEY, of which 1 is a secret.

›Can I use Kalshi as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Kalshi in the official MCP registry?

Yes, as io.github.9crusher/mcp-server-kalshi.