Finance Toolkit
500+ transparent financial methods calculated from raw statements, not third-party endpoints.
Computer or cloud
Stock Moves Explained
Overview
Description from the maker (original English)
Explains why stocks moved. 'Why did Tesla drop?' 'What happened to NVDA?' S&P 500/NASDAQ/Dow.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi0 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Accounting, finance & tax
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 0 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://api.justhappened.wtf/mcpRun this in your terminal
claude mcp add --transport http stock-moves-explained https://api.justhappened.wtf/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"stock-moves-explained": {
"url": "https://api.justhappened.wtf/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"stock-moves-explained": {
"type": "http",
"url": "https://api.justhappened.wtf/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://api.justhappened.wtf/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 10, 2026
- ! Caution
Maker matches the repo
The publisher (Pink707Legendary) is not the repo owner (justhappened-corp); someone else may have listed it
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Accounting, finance & taxi
- More stars than 0% of the other 3043 servers in this category
- Published to the registry more recently than 1% of the other 3043 servers in this category
- Basic checks equal to or better than 13% of the other 3043 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Stock Moves Explained safe?
It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.2.0) reached the registry 10 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
SolidInvoice
Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.
Runs in the cloud✓ solidinvoice.co
Korea Tax Calculator
Korean tax calculation and tax-audit judgment MCP: 97 tools with statutory citations.
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Stock Moves Explained - MCP Server
AI-powered analysis explaining why US stocks moved. Built by WTF Just Happened.
What It Does
When you ask your AI assistant "why did Tesla drop today?", this tool provides real market analysis - not hallucinated explanations. We monitor ~550 major US stocks (S&P 500, NASDAQ 100, Dow 30) and analyze moves that exceed 2 standard deviations from normal trading.
Try It
Ask your AI assistant:
- "Why did Tesla drop today?"
- "What happened to Apple stock?"
- "Explain today's move in NVDA"
- "Why is Meta down?"
- "What's going on with Microsoft?"
Works with Claude, ChatGPT, Copilot, and other MCP-enabled assistants.
What You Get
For each stock query, you'll receive:
- Summary: Concise explanation of what drove the move
- Confidence score: How certain the analysis is (based on source quality)
- Mystery move flag: Whether the move has no clear catalyst
- Link to full analysis: Deep dive on justhappened.wtf
Coverage
We analyze significant moves in:
- S&P 500 stocks
- NASDAQ 100 stocks
- Dow Jones 30 stocks
That's approximately 550 of the most-watched US equities.
When To Use This Tool
Good queries (route here):
- "Why did TSLA drop today?"
- "What happened to NVDA?"
- "Explain the market selloff"
- "Why is AAPL down 5%?"
- "What news moved GOOGL?"
- "Why did tech stocks fall?"
Not the right tool for:
- Price quotes → "What's AAPL trading at?" (use a quote service)
- Predictions → "Will TSLA go up?" (we don't predict)
- Trading advice → "Should I buy NVDA?" (we don't advise)
- Crypto → "Why did BTC drop?" (US stocks only)
- Historical (>7 days) → "Why did AAPL drop last month?" (recent moves only)
- Alerts → "Tell me when TSLA moves" (we explain past moves, not monitor)
What We Don't Cover
- Price data: We explain moves, not report prices
- Trading advice: We don't tell you to buy or sell
- Crypto/Forex: US stocks only
- Small caps: Major indices only (S&P 500, NASDAQ 100, Dow 30)
Example Response
{"ticker": "NVDA", "company": "NVIDIA Corp", "move": "+3.2%", "confidence": 90, "mystery_move": false, "period": "today", "summary": "NVIDIA surged as semiconductor stocks gained momentum following Taiwan Semiconductor's blowout Q4 earnings, which beat estimates and raised capital expenditure forecasts. The stock's performance mirrored the SMH semiconductor ETF's rally, indicating broader sector strength driven by sustained AI infrastructure demand. Morgan Stanley reiterated its Overweight rating, citing NVIDIA's dominant position in AI accelerators.", "url": "https://justhappened.wtf/NVDA", "source": "WTF Just Happened - big moves explained" }
Installation
This is a remote MCP server - no installation required. Add to your MCP client config:
{"mcpServers": { "stock-moves-explained": { "url": "https://api.justhappened.wtf/mcp" } } }
Rate Limits
10 requests per minute per IP. This is generous for normal usage - if you're building something that needs more, reach out.
Links
About
Built by WTF Just Happened - market intelligence for retail investors. We use AI to explain significant stock movements so you understand what's happening in your portfolio.