Is io.github.cejor6/kalshi-mcp-server safe to use?

io.github.cejor6/kalshi-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.cejor6/kalshi-mcp-server?

io.github.cejor6/kalshi-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.github.cejor6/kalshi-mcp-server do?

io.github.cejor6/kalshi-mcp-server provides 9 tools: get_markets, get_market_details, get_orderbook, place_order, confirm_order and 4 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with io.github.cejor6/kalshi-mcp-server?

io.github.cejor6/kalshi-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is io.github.cejor6/kalshi-mcp-server actively maintained?

io.github.cejor6/kalshi-mcp-server is actively maintained — last commit was 1 day ago. It has 1 GitHub stars.

io.github.cejor6/kalshi-mcp-server

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

1 9 tools GitHub

No known CVEs

No license

Actively maintained

Last commit 1d ago

Works with most clients

Transport: stdio, sse, http

9 tools · ~544 tok

Grade B · 0.3% of 200K ctx

Edit this pageView history

Other

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

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

{
  "mcpServers": {
    "kalshi": {
      "args": [
        "--env-file",
        "/Users/you/.kalshi/.env"
      ],
      "command": "kalshi-mcp"
    }
  }
}

Are you the author?

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-cejor6-kalshi-mcp-server)](https://mcppedia.org/s/io-github-cejor6-kalshi-mcp-server)

Read me

What io.github.cejor6/kalshi-mcp-server does

A Model Context Protocol server for Kalshi prediction markets. Native RSA-PSS auth, async token-bucket rate limiting, two-step prepare/confirm order flow with safety caps, optional bundled OAuth proxy for remote-MCP deployments, 26 tools + 4 resources across REST and WebSocket. MIT, designed to be forked.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

67/100across 5 weighted dimensions

How we score →

0255075100

−33

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (9)

Click any tool to inspect its schema.

~544 tokens total

Inventory

Resources (4)

markets

List of all available prediction markets

kalshi://markets

market_details

Detailed information about a specific market

kalshi://markets/{ticker}

orderbook

Live orderbook for a market

kalshi://markets/{ticker}/orderbook

portfolio

User's current portfolio and positions

kalshi://portfolio

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.cejor6/kalshi-mcp-server safe to use?: io.github.cejor6/kalshi-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.cejor6/kalshi-mcp-server?: io.github.cejor6/kalshi-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.cejor6/kalshi-mcp-server do?: io.github.cejor6/kalshi-mcp-server provides 9 tools: get_markets, get_market_details, get_orderbook, place_order, confirm_order and 4 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.cejor6/kalshi-mcp-server?: io.github.cejor6/kalshi-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.cejor6/kalshi-mcp-server actively maintained?: io.github.cejor6/kalshi-mcp-server is actively maintained — last commit was 1 day ago. It has 1 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Other

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

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

{
  "mcpServers": {
    "kalshi": {
      "args": [
        "--env-file",
        "/Users/you/.kalshi/.env"
      ],
      "command": "kalshi-mcp"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-cejor6-kalshi-mcp-server)](https://mcppedia.org/s/io-github-cejor6-kalshi-mcp-server)

Read me

What io.github.cejor6/kalshi-mcp-server does

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

kalshi-mcp-server

Works with any MCP client — locally via stdio (Claude Desktop, Claude Code, Cursor, Zed, Continue, Cline, Goose, etc.) or remotely as a self-hosted HTTP server (claude.ai custom connectors today, any OAuth-capable MCP client in the future).

⚠️ This software lets an LLM place trades. Read DISCLAIMER.md before deploying. Trading prediction markets involves substantial risk of loss. AI agents make mistakes — sometimes confidently. The authors are not liable for any losses. Test in demo (KALSHI_ENV=demo, KALSHI_TRADING_ENABLED=0) until you understand the failure modes.

Status — alpha. Auth (REST + WS), rate limiting, safety controls, 26 tools across REST + live channels, and 4 resources are in place. A long-lived multiplexed WebSocket session and kalshi://markets/{ticker}/orderbook live resource are planned for v0.2.

Why this server

Most existing Kalshi MCPs are thin wrappers around a handful of REST endpoints. This one aims to be:

Native Kalshi. Real RSA-PSS signer that handles the gotchas (path-without-query-string, ms timestamps, separate demo/prod keys).
Rate-limit aware. Client-side token bucket mirrors Kalshi's 2026 read/write budget model, so the server can't spam the API into a 429.
Safe by default. Refuses to start against prod without an explicit opt-in flag. Refuses to write without a separate trading-enabled flag. Order-time controls (size cap, daily cap, cash reserve) are all operator-configurable.
Hosted-deploy friendly. Accepts the private key as either a file path OR an env var with inline PEM, so it works on platforms without filesystem mounts.
Fork-able. MIT, no personal data, CI/CD set up so PR contributions flow through main without ever triggering a production deploy — only tagged releases (v*) do. Your fork's deployment stays decoupled from this repo's, and your fork's contributors can't affect what you run.

Install

From source (the only option until v0.1 is published)

git clone https://github.com/cejor6/kalshi-mcp-server.git
cd kalshi-mcp-server
uv sync

Docker

docker pull ghcr.io/cejor6/kalshi-mcp-server:latest

(Image only exists once a v* tag is published. See DEPLOY.md.)

Configure

Generate a Kalshi API key at https://kalshi.com/account/profile (or the demo equivalent at https://demo.kalshi.co/account/profile). Save the private key — it is shown ONCE.
Put your secrets in one .env file. A good location for the MCP-client use case is ~/.kalshi/.env (outside any repo). For local dev, the repo's own .env (gitignored) works too.

cp .env.example ~/.kalshi/.env
# edit ~/.kalshi/.env

At minimum, set:

KALSHI_API_KEY_ID=<your-key-id>
KALSHI_PRIVATE_KEY_PATH=/absolute/path/to/your_kalshi_private_key.pem
KALSHI_ENV=demo

For prod, also set:

KALSHI_ENV=prod
KALSHI_ALLOW_PROD=1
KALSHI_TRADING_ENABLED=1   # only if you want writes

How env vars are resolved

On startup, the server resolves config in this order

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

67/100across 5 weighted dimensions

How we score →

0255075100

−33

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (9)

Click any tool to inspect its schema.

~544 tokens total

Inventory

Resources (4)

markets

List of all available prediction markets

kalshi://markets

market_details

Detailed information about a specific market

kalshi://markets/{ticker}

orderbook

Live orderbook for a market

kalshi://markets/{ticker}/orderbook

portfolio

User's current portfolio and positions

kalshi://portfolio

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.cejor6/kalshi-mcp-server safe to use?: io.github.cejor6/kalshi-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.cejor6/kalshi-mcp-server?: io.github.cejor6/kalshi-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.cejor6/kalshi-mcp-server do?: io.github.cejor6/kalshi-mcp-server provides 9 tools: get_markets, get_market_details, get_orderbook, place_order, confirm_order and 4 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.cejor6/kalshi-mcp-server?: io.github.cejor6/kalshi-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.cejor6/kalshi-mcp-server actively maintained?: io.github.cejor6/kalshi-mcp-server is actively maintained — last commit was 1 day ago. It has 1 GitHub stars.

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MCP Security Weekly

Get CVE alerts and security updates for io.github.cejor6/kalshi-mcp-server and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?