Maintenant is unclaimed —

Maintenant

Monitor everything. Manage nothing.·maintenant.dev

Maintenant is a self-hosted, single-container monitoring tool for Docker and Kubernetes stacks. It auto-discovers containers, checks HTTP/TCP endpoints, tracks cron/heartbeat jobs, validates SSL certificates, collects system resource metrics, and detects available image updates — all with zero configuration. It also provides network security insights, alerting, and a public status page, replacing multiple separate monitoring tools with one binary.

What it's for

Auto-discovering and monitoring Docker and Kubernetes containersChecking HTTP/TCP endpoint uptime and latencyTracking cron jobs and scheduled task heartbeatsMonitoring SSL/TLS certificate expirationCollecting CPU, RAM, network and disk metrics per container or hostDetecting available container image updates via OCI digest scanningIdentifying exposed ports and network security risksPublishing a public status page for incidentsMonitoring multiple remote hosts from one central server

Features 18

Built-in MCP server to query infrastructure from an AI assistant
Container health checks and restart loop detection
CPU, RAM, network and disk resource metrics per container and host
Docker and Kubernetes container auto-discovery
Docker Swarm monitoring with service discovery and rolling update tracking
Heartbeat/cron job monitoring with unique ping URLs
HTTP/TCP endpoint monitoring configured via Docker labels
Incident management, maintenance windows and subscriber notifications (Pro)
Multi-server agent monitoring across Docker, Swarm and Kubernetes fleets
Network Security Insights (open ports, exposed services, misconfigurations)
Public status page with live SSE updates and component groups
PWA support
REST API under /api/v1/ with real-time SSE streams
Single-container/binary deployment with zero external dependencies (SQLite only)
SSL/TLS certificate monitoring with expiry alerts at 30/14/7/3/1 days
Unified alerting via Webhook and Discord (Slack, Teams, Email on Pro)
Unified Security Posture with CVE enrichment and risk scoring (Pro)
Update Intelligence via OCI registry digest scanning

At a glance

free tierfree trialopen sourceself-hostableAPI

TypeWeb app

DeploymentSelf-hosted

PlatformsLinux, macOS, Windows

LanguagesEnglish, French

Forself-hosters, homelab users

CompanyKolapsis

Integrations

DiscordSlackMicrosoft TeamsStripeMollie

Resources

Pricing

Prices are stated in EUR: Pro is 29€/month or 290€/year (2 months free with annual billing), with a 14-day free trial. Community plan is free forever.

CommunityFree

Free forever, open source

HTTP/TCP endpoint checks: 10 max; Heartbeats/cron: 5 max; SSL/TLS certificate monitors: 5 max; Metrics history retention: 1h + 6h; Status page components: 3 max

Pro€29/mo

14-day free trial included. Billed monthly at 29€ or annually at 290€ (2 months free versus monthly billing).

Unlimited container auto-discovery, HTTP/TCP endpoint checks, heartbeats/cron, and SSL/TLS monitors; metrics history retention up to 30 days; multi-server monitoring up to 10 hosts

Annual billing offers 2 months free versus monthly (17% discount).