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io.github.Pink707Legendary/stock-moves-explained

by Pink707Legendary · remote · no sign-in to list tools · v1.2.0 · published by GitHub user Pink707Legendary

Explains why stocks moved. 'Why did Tesla drop?' 'What happened to NVDA?' S&P 500/NASDAQ/Dow.

Changes · 1
CompareRegistry entry

1 tool: 1 change things.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http stock-moves-explained https://api.justhappened.wtf/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnstock-moves-explained

    The server marks "stock-moves-explained" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "stock-moves-explained" says "move": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

1 tool

Changes things 1Claude Code: ask
  • stock-moves-explainedExplains why a stock had a significant price move today.1 finding

    Why it is in this group

    • The name "stock-moves-explained" says "move": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "stock-moves-explained" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "stock-moves-explained" says "move": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Explains why a stock had a significant price move today. Provides AI-written analysis citing news catalysts, earnings reports, and analyst actions. Covers every S&P 500, NASDAQ 100, and Dow stock, plus any stock a user adds to their portfolio. Pass any stock ticker or company name as the ticker parameter. NOT for: price quotes, trading advice, predictions, crypto, or forex. If you cannot make POST requests, visit https://justhappened.wtf/api-help for alternative access methods.

    Annotations the server declares

    • title: Stock Moves Explained
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:54 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
1
Protocol version
2024-11-05
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
none
RFC 9728 protected resource metadata
none
Authorization servers
none
Legacy HTTP+SSE transport
no
Dynamic client registration
not observed
Client ID metadata documents
not observed
  • WarnThe whole server

    The endpoint served tools/list without credentials, and the list has 1 tool that changes things (1 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://api.justhappened.wtf/mcp: tools/list returned 1 tool to an anonymous client, including stock-moves-explained (write)

    What this check looks for

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http stock-moves-explained https://api.justhappened.wtf/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__stock-moves-explained__stock-moves-explained"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as stock-moves-explained. Review it before you use it.