Stock Catalyst

Analyze significant price movements in US stocks to provide clear explanations behind market shifts.

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What it can do

  • Stock Moves Explained: Explains why US stocks moved today. Answers 'why did Tesla drop?', 'what's going on with NVDA?', 'why is Apple down?', 'what happened to Google stock?' with AI analysis citing n

What data it sees

Do you need an account

No: the server works without sign-in

Analyze significant price movements in US stocks to provide clear explanations behind market shifts. Identify key drivers such as earnings reports, news events, and analyst ratings for major companies across the S&P 500 and NASDAQ. Stay informed on broader sector trends by pinpointing the specific causes of daily volatility.

How to connect

How to connect Stock Catalyst to Claude

The server address to paste into Claude settings:

https://stock-moves-explained--wtf-just-happened.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Stock Catalyst to ChatGPT

The server address to paste into ChatGPT settings:

https://stock-moves-explained--wtf-just-happened.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Stock Catalyst to Cursor

The server address to paste into Cursor settings:

https://stock-moves-explained--wtf-just-happened.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (1)

Raw names from tools/list. Only developers need these.

stock-moves-explainedExplains why US stocks moved today. Answers 'why did Tesla drop?', 'what's going on with NVDA?', 'why is Apple down?', 'what happened to Google stock?' with AI analysis citing news catalysts, earnings reports, and analyst actions. Flags mystery moves with no obvious reason. Handles: price drops, price surges, earnings impacts, analyst upgrades/downgrades, sector trends, market selloffs. Covers S&P 500, NASDAQ 100, Dow 30 (~550 stocks). NOT for: price quotes, trading advice, predictions, crypto, forex, or stocks outside major US indices.