RedAlert MCP Server

RedAlert MCP Server

Provides real-time rocket alerts, historical statistics, shelter search, and city data through 12 MCP tools.

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RedAlert MCP Server

An MCP (Model Context Protocol) server for Israel's RedAlert emergency alert system. Provides real-time rocket alerts, historical statistics, shelter search, and city data through 12 MCP tools.

Features

  • Real-time alerts via Socket.IO with buffered polling model
  • Historical statistics - summaries, per-city stats, alert history, distribution
  • Shelter search - find nearby shelters by coordinates or city name
  • City catalog - lookup cities with translations, coordinates, and countdown times
  • Test mode - connect to the test server for simulated alerts

Tools

REST API Tools (8)

Tool Description
get_active_alerts Real-time snapshot of cities currently under alert
get_stats_summary Alert totals, top cities/zones/origins, timeline, peak hour
get_stats_cities Per-city alert statistics with pagination and search
get_stats_history Historical alert records with city filtering
get_stats_distribution Alert distribution by category or origin
search_shelters Find nearby shelters by coordinates or city name
get_cities City catalog with translations, coordinates, countdown
health_check API health check

Real-time Tools (4)

Tool Description
subscribe_alerts Connect to Socket.IO and start receiving alerts
poll_alerts Retrieve buffered alerts (peek or acknowledge)
unsubscribe_alerts Disconnect and clear buffer
get_alert_subscription_status Check connection state and buffer size

Setup

Prerequisites

Configure in Claude Code

Add to ~/.claude.json under your project's mcpServers:

{
  "redalert": {
    "type": "stdio",
    "command": "npx",
    "args": ["-y", "redalert-mcp-server"],
    "env": {
      "REDALERT_API_KEY": "your-api-key-here"
    }
  }
}

Configure in Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "redalert": {
      "command": "npx",
      "args": ["-y", "redalert-mcp-server"],
      "env": {
        "REDALERT_API_KEY": "your-api-key-here"
      }
    }
  }
}

Usage Examples

Once configured, you can ask Claude:

  • "Show me active alerts right now"
  • "Find all missile alerts in Kfar Saba in the last 24 hours"
  • "Search for shelters near Tel Aviv"
  • "Get alert statistics summary with top cities"
  • "Subscribe to test alerts and poll for updates"
  • "Compare missile alerts between Kfar Saba and Shoham in the last 2 months"

Example: City Comparison

Prompt: "Compare the missile alerts in the last 2 months between Kfar Saba and Shoham"

┌──────────────────────────┬───────────────┬───────────────┐
│                          │   Kfar Saba   │    Shoham     │
├──────────────────────────┼───────────────┼───────────────┤
│ Zone                     │ Sharon        │ Yarkon        │
├──────────────────────────┼───────────────┼───────────────┤
│ Missile alerts           │ 64            │ 77            │
├──────────────────────────┼───────────────┼───────────────┤
│ Total alerts (all types) │ 205           │ 217           │
├──────────────────────────┼───────────────┼───────────────┤
│ Last missile alert       │ Mar 14, 12:43 │ Mar 13, 21:22 │
└──────────────────────────┴───────────────┴───────────────┘

Shoham had ~20% more missile alerts than Kfar Saba over this period (77 vs 64).
Both cities had a similar ratio of missile alerts to total alerts (~31-35%).

Claude automatically uses get_stats_cities and get_stats_history to gather and compare data across cities.

Example: Weekly Alert Summary (Hebrew)

Prompt: "תראה לי את כל ההתראות שהיו לכפר סבא בשבוע האחרון"

הנה כל ההתראות בכפר סבא בשבוע האחרון (7-14 במרץ):

| תאריך ושעה (UTC) | סוג התראה            |
|-------------------|----------------------|
| 14/3, 13:04       | טילים               |
| 14/3, 12:43       | טילים               |
| 14/3, 12:39       | ידיעה מקדימה         |
| 14/3, 00:30       | ידיעה מקדימה         |
| 13/3, 21:22       | טילים               |
| 13/3, 17:31       | טילים               |
| 13/3, 17:26       | ידיעה מקדימה         |
| 13/3, 14:58       | ידיעה מקדימה         |
| 13/3, 11:26       | ידיעה מקדימה         |
| 13/3, 08:49       | חדירת כלי טיס עוין   |
| 12/3, 19:42       | טילים               |
| 12/3, 19:38       | ידיעה מקדימה         |
| 12/3, 15:19       | חדירת כלי טיס עוין   |
| 12/3, 13:03       | טילים               |
| 12/3, 12:57       | ידיעה מקדימה         |
| 12/3, 07:22       | ידיעה מקדימה         |
| 12/3, 02:13       | טילים               |
| 12/3, 02:07       | ידיעה מקדימה         |

סיכום השבוע בכפר סבא:
- 8 התראות טילים
- 8 ידיעות מקדימות
- 2 חדירות כלי טיס עוין

Claude uses get_stats_history with Hebrew city search, automatically filtering results to show only Kfar Saba. Works in any language.

Example: Nearest Shelters

Prompt: "תראה לי את שלושת המקלטים הכי קרובים לתיאטרון הבימה בתל אביב"

שלושת המקלטים הקרובים ביותר לתיאטרון הבימה:

| # | מרחק   | כתובת                     | שם                   | סוג                  | שטח       |
|---|--------|---------------------------|----------------------|----------------------|-----------|
| 1 | 143 מ' | הוברמן 4 (כיכר הבימה)      | הבימה/שד' בן ציון     | מקלט בשטח חניון       | 2,000 מ"ר |
| 2 | 154 מ' | הוברמן 1                  | היכל התרבות           | חניון מחסה לציבור     | 37,200 מ"ר|
| 3 | 260 מ' | ביל"ו 54                  | -                    | מקלט ציבורי          | 92 מ"ר    |

- מקלט 1 - ממש בכיכר הבימה, גישה ציבורית
- מקלט 2 - היכל התרבות, החניון הגדול משמש כמחסה לציבור
- מקלט 3 - ביל"ו 54 פינת מרמורק 20, מתחת לבית כנסת

Claude resolves the landmark to coordinates and uses search_shelters to find the nearest shelters with full details.

Testing

# Unit tests (91 tests)
npm test

# E2E tests against live API (56 tests)
REDALERT_API_KEY=your-key node e2e/run-e2e.mjs

Architecture

src/
  api/          # HTTP client and API endpoint wrappers
  tools/        # MCP tool handlers (one per endpoint)
  realtime/     # Socket.IO connection manager and alert buffer
  __tests__/    # Unit tests (vitest)
  config.ts     # Configuration and API key
  errors.ts     # Error handling and MCP error mapping
  server.ts     # MCP server setup
  index.ts      # Entry point with stdio transport
e2e/            # End-to-end test runner and test plans

API Reference

Based on RedAlert API by Oriel Haim.

License

MIT

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