Prediction Markets Data: Kalshi + Polymarket MCP Server

by brenton-keller Your server? Claim it

answering

Prediction Markets Data: Kalshi + Polymarket is answering right now. Last checked 4 min ago.

Live Kalshi + Polymarket prices, orderbooks, trades, results. Pay per result via Apify.

Uptime history 40 hours of history

40 hours agonow

100.0%

Uptime 24h

93 of 93 checks

—

Tools

hidden behind auth

354 ms

Response time

average over 24h

API key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Prediction Markets Data: Kalshi + Polymarket every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add prediction-markets-data --transport http https://mcp.apify.com/?tools=brenton8907/prediction-markets-data

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

{
  "mcpServers": {
    "prediction-markets-data": {
      "url": "https://mcp.apify.com/?tools=brenton8907/prediction-markets-data"
    }
  }
}

~/.codex/config.toml

[mcp_servers.prediction-markets-data]
url = "https://mcp.apify.com/?tools=brenton8907/prediction-markets-data"

.cursor/mcp.json

{
  "mcpServers": {
    "prediction-markets-data": {
      "url": "https://mcp.apify.com/?tools=brenton8907/prediction-markets-data"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "prediction-markets-data": {
      "url": "https://mcp.apify.com/?tools=brenton8907/prediction-markets-data"
    }
  }
}

This endpoint answered with an authorization challenge — the server is running, but you need an API key or OAuth to use it.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.apify.com/?tools=brenton8907/prediction-markets-data	streamable-http	needs key	335 ms	4 min ago

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Prediction Markets Data: Kalshi + Polymarket — questions

Answers built from our own checks of this server.

Why is there no tool list for Prediction Markets Data: Kalshi + Polymarket?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Prediction Markets Data: Kalshi + Polymarket working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 93 of 93 checks got a reply (100.0%), average response time 354 ms. The bar chart above shows every period we have measured.

How do I connect Prediction Markets Data: Kalshi + Polymarket?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own key: it refuses anonymous clients.

Does Prediction Markets Data: Kalshi + Polymarket need an API key?

Yes. Every time we knock, Prediction Markets Data: Kalshi + Polymarket answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is Prediction Markets Data: Kalshi + Polymarket?

It answers our handshake in 354 ms on average, which is faster than 47% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.