Chrono Environment

Environment Configuration

Location: /opt/mcp-servers/chrono/mcp_chrono_server.py
Version: 1.2.0 (Credentials helper support)
Vault Port: 6681 (no auth required)
User Redis: 6610 (requires password from locker)

Purpose

DateTime, Weather, and Reminders utility server. Provides: - Time/date queries with user timezone awareness - Weather via Open-Meteo API (no API key required) - Reminder management (create, list, complete, delete, snooze) - Personalized greetings based on time of day and weather

Architecture

Uses Open-Meteo Geocoding + Weather APIs (public, no key)
Integrates with User environment (6610) for profile/location lookup
Stores reminders in Redis (port 6681)
Uses credentials_helper for password retrieval (Nexus 3.0.6)
Uses user_helper for stable ID resolution (Nexus 3.0.5)

Tools (11 total)

Tool	Description	Required Params
`now`	Get current date/time for user	user_id (optional)
`weather`	Get current weather	user_id, city (optional)
`forecast`	Get weather forecast (1-16 days)	user_id, city, days
`timezone`	Get timezone info or convert time	from_timezone, to_timezone, time
`remind`	Set a reminder	message, when (required)
`reminders`	List upcoming reminders	user_id, limit
`reminder_complete`	Mark reminder complete	reminder_id (required)
`reminder_delete`	Delete a reminder	reminder_id (required)
`reminder_snooze`	Snooze a reminder	reminder_id, snooze_for
`greeting`	Get personalized greeting with context	user_id
`today`	Get today's overview	user_id

When Formats for Reminders

30m - 30 minutes from now
1h - 1 hour from now
2d - 2 days from now
tomorrow - Tomorrow at 9:00 AM
ISO datetime - Specific date/time

Security Assessment

✅ Credentials retrieved via credentials_helper for User Redis ✅ No hardcoded passwords for critical resources ✅ No injection vulnerabilities - city names properly URL-encoded ✅ User Redis (6610) properly secured with password

Test Results

✅ now - Returns correct time with timezone ✅ weather - Returns weather via Open-Meteo ✅ greeting - Returns personalized greeting ✅ today - Returns daily overview ✅ forecast - Returns multi-day forecast ✅ timezone - Converts between timezones ✅ remind - Creates reminders (after port fix) ✅ reminders - Lists reminders (after port fix)

Integration Points

User Helper: Gets location and timezone from user profile
Open-Meteo API: Weather and geocoding (no API key needed)
Redis: Reminder storage on port 6681

Status: WORKING

Chrono environment fully operational after port configuration fix (6780→6681).