StockMarketScan Stock Screener MCP Server

What a stock screener MCP server gives you

Once connected, you stop copy-pasting screener rows into a chat. You ask, and the model calls the tools it needs, chains them, and answers from live data:

• What's the ticker for Palantir, and which screeners does it appear in right now?
• Which stocks appear in both hot-prospects and golden-cross today?
• Build a full stock report for NVDA: screeners, patterns, options flow, market context.
• Find hot-prospects that are forming a cup and handle.
• Show me AMD's options flow history for the last 30 days.
• Which contracts traded today at vol/OI above 3 with over $1M premium?

The server ships workflow guidance to the model on connect, so it picks the right tool instead of paging through data. Asking about one stock triggers a single get_stock_report call rather than four separate lookups.

Setup — choose your path

Pick the row that matches your client. The personal connector URL is the simplest and the safest: it carries the credential inside the URL, so no client ever needs to handle an API key, and you can revoke a single device without touching the others.

{
  "mcpServers": {
    "stockmarketscan": {
      "url": "https://mcp.stockmarketscan.com/u/mct_your_token/mcp"
    }
  }
}

claude mcp add --transport http stockmarketscan \
  https://mcp.stockmarketscan.com/u/mct_your_token/mcp

{
  "name": "stockmarketscan",
  "url": "https://mcp.stockmarketscan.com/mcp",
  "headers": { "X-API-Key": "sms_your_key_here" }
}

{
  "experimental": {
    "modelContextProtocolServers": [
      {
        "transport": {
          "type": "sse",
          "url": "https://mcp.stockmarketscan.com/mcp",
          "headers": { "X-API-Key": "sms_your_key_here" }
        }
      }
    ]
  }
}

Try it without an account

Connect to https://mcp.stockmarketscan.com/mcp with no credential at all and four tools still answer. Everything else returns a clear NEEDS_SUBSCRIPTION error with a signup link rather than a bare 401, so the model can tell you what it needs instead of failing silently.

Available tools — 20

Tools in green need no account.

Plans and quota

MCP tool calls draw on the same monthly quota as direct REST API requests, one for one. A typical research question costs three to five calls. When the quota runs out, tools return the reset date rather than an opaque failure.

FAQ and troubleshooting

The client connects but shows zero tools

Almost always an outdated client. Update it and reconnect. If it persists, call ping — if that answers, the transport is fine and the issue is on the client side.

"Missing credentials"

The credential is not reaching the server. With a connector URL, check that the full URL including the /u/mct_.../mcp segment was pasted. With an API key, set it as a header — several clients ignore the env block for HTTP transports.

"Invalid API key format"

Keys start with sms_ and connector tokens with mct_, both at least 20 characters. A truncated copy is the usual cause.

A tool returns TIER_UPGRADE_REQUIRED

You called a Pro tool on the Basic plan, in practice one of the options flow tools. Upgrade in Settings, or ask the model to stay on screener, pattern and market context tools.

claude.ai asks me to sign in again during setup

Expected. The OAuth consent screen runs on stockmarketscan.com and needs its own session. Sign in there once and approve; Claude takes it from there.

How do I revoke access?

Revoke the connector URL in Settings and that device stops working immediately while the others keep going. Rotating your API key cuts off every client using the key, including anything connected through OAuth.

Can I use more than one connector URL?

Yes, one per device or client is the point. Each is named and revoked on its own.

Does it work with clients other than Claude?

Yes. It is a standard MCP server speaking Streamable HTTP and SSE, tested with Claude Desktop, Claude Code, claude.ai and Cursor. Anything that speaks either transport will work.

Technical reference: MCP server for stock market data

Everything below is what you need to point a client we have not listed at the endpoint directly, or to run this MCP server for stock market data from source.

Source is open at github.com/stockmarketscan/mcp-server. The REST API behind it is documented in the API docs.