Kalshi Prediction Markets MCP

A self-hosted Model Context Protocol server for Kalshi prediction markets that enables LLM agents to interact with trading data and execute trades. It features native RSA-PSS authentication, token-bucket rate limiting, and safety controls including a two-step prepare/confirm order flow. The server provides 26 tools and 4 resources, supporting both read-only demo modes and production trading with explicit opt-in flags.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by cejor6

You need:get a demo key at demo.kalshi.co

Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

Popularity 3 GitHub stars

What you can do with it

Query tradeable markets and find liquid markets
Place trades on prediction market outcomes
Monitor live market data via WebSocket
Retrieve orderbook information for specific tickers

Source and maintenance

Community listingRegistry 0.1.8MIT

mcp-registry: io.github.cejor6/kalshi-mcp-server@0.1.8 Source repository

Last repository push: Nov 1, 2026, 5:04 PM UTC
Latest release: v0.1.12
Maintenance checked: Nov 2, 2026, 4:54 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

ghcr.io/cejor6/kalshi-mcp-server:0.1.8

oci

ghcr.io/cejor6/kalshi-mcp-server:0.1.8 package definition

{
  "transport": "stdio",
  "identifier": "ghcr.io/cejor6/kalshi-mcp-server:0.1.8",
  "registryType": "oci",
  "environmentVariables": [
    {
      "name": "KALSHI_API_KEY_ID",
      "format": "string",
      "isRequired": true,
      "description": "Kalshi API key ID from https://kalshi.com/account/profile"
    },
    {
      "name": "KALSHI_PRIVATE_KEY_PEM",
      "format": "string",
      "description": "Inline PEM contents, for hosted deploys without filesystem access."
    },
    {
      "name": "KALSHI_ENV",
      "format": "string",
      "description": "demo or prod. Defaults to demo for safety."
    },
    {
      "name": "KALSHI_ALLOW_PROD",
      "format": "string",
      "description": "Must be 1 for the server to start with KALSHI_ENV=prod. Defaults to 0."
    },
    {
      "name": "KALSHI_TRADING_ENABLED",
      "format": "string",
      "description": "Must be 1 for order-placement tools to operate. Read-only by default (0)."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 2, 2026, 4:54 PM UTC · repository · passed · metadata changed · updated
Nov 2, 2026, 4:54 PM UTC · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "kalshi-prediction-markets-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "KALSHI_API_KEY_ID=<YOUR_KALSHI_API_KEY_ID>",
        "-e",
        "KALSHI_PRIVATE_KEY_PEM=<YOUR_KALSHI_PRIVATE_KEY_PEM>",
        "-e",
        "KALSHI_ENV=<YOUR_KALSHI_ENV>",
        "-e",
        "KALSHI_ALLOW_PROD=<YOUR_KALSHI_ALLOW_PROD>",
        "-e",
        "KALSHI_TRADING_ENABLED=<YOUR_KALSHI_TRADING_ENABLED>",
        "ghcr.io/cejor6/kalshi-mcp-server:0.1.8"
      ],
      "env": {
        "KALSHI_API_KEY_ID": "<YOUR_KALSHI_API_KEY_ID>",
        "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>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "kalshi-prediction-markets-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "KALSHI_API_KEY_ID=<YOUR_KALSHI_API_KEY_ID>",
        "-e",
        "KALSHI_PRIVATE_KEY_PEM=<YOUR_KALSHI_PRIVATE_KEY_PEM>",
        "-e",
        "KALSHI_ENV=<YOUR_KALSHI_ENV>",
        "-e",
        "KALSHI_ALLOW_PROD=<YOUR_KALSHI_ALLOW_PROD>",
        "-e",
        "KALSHI_TRADING_ENABLED=<YOUR_KALSHI_TRADING_ENABLED>",
        "ghcr.io/cejor6/kalshi-mcp-server:0.1.8"
      ],
      "env": {
        "KALSHI_API_KEY_ID": "<YOUR_KALSHI_API_KEY_ID>",
        "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>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "kalshi-prediction-markets-mcp": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "KALSHI_API_KEY_ID=<YOUR_KALSHI_API_KEY_ID>",
        "-e",
        "KALSHI_PRIVATE_KEY_PEM=<YOUR_KALSHI_PRIVATE_KEY_PEM>",
        "-e",
        "KALSHI_ENV=<YOUR_KALSHI_ENV>",
        "-e",
        "KALSHI_ALLOW_PROD=<YOUR_KALSHI_ALLOW_PROD>",
        "-e",
        "KALSHI_TRADING_ENABLED=<YOUR_KALSHI_TRADING_ENABLED>",
        "ghcr.io/cejor6/kalshi-mcp-server:0.1.8"
      ],
      "env": {
        "KALSHI_API_KEY_ID": "<YOUR_KALSHI_API_KEY_ID>",
        "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>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "kalshi-prediction-markets-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "KALSHI_API_KEY_ID=<YOUR_KALSHI_API_KEY_ID>",
        "-e",
        "KALSHI_PRIVATE_KEY_PEM=<YOUR_KALSHI_PRIVATE_KEY_PEM>",
        "-e",
        "KALSHI_ENV=<YOUR_KALSHI_ENV>",
        "-e",
        "KALSHI_ALLOW_PROD=<YOUR_KALSHI_ALLOW_PROD>",
        "-e",
        "KALSHI_TRADING_ENABLED=<YOUR_KALSHI_TRADING_ENABLED>",
        "ghcr.io/cejor6/kalshi-mcp-server:0.1.8"
      ],
      "env": {
        "KALSHI_API_KEY_ID": "<YOUR_KALSHI_API_KEY_ID>",
        "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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