Prediction Markets Data: Kalshi + Polymarket MCP Server

by bkeller-research 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 5 days of history · worst day 99%

5 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

327 ms

Response time

average over 24h

API key

Access

streamable-http

Prediction Markets Data: Kalshi + Polymarket does not always answer

Over the last week it answered 99.1% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

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 from its owner to call it.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.apify.com/?tools=brenton8907/prediction-markets-data	streamable-http	needs key	301 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 92 of 92 checks got a reply (100.0%), average response time 327 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 327 ms on average, which is faster than 43% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.