CronAlert is unclaimed —

CronAlert

Uptime Monitoring That Alerts Instantly·cronalert.com

CronAlert is an uptime monitoring SaaS that pings websites, APIs, and services every minute and alerts users instantly via email, Slack, Discord, webhook, or other channels when something breaks. It supports HTTP/HTTPS endpoint monitoring, SSL certificate monitoring, content/keyword/regex checks, heartbeat monitoring for cron jobs, status pages, and incident tracking. It runs entirely on Cloudflare's edge infrastructure (Workers, D1, Pages, Cron Triggers) and exposes a REST API and MCP server for AI-agent driven management.

What it's for

Website uptime monitoringAPI and webhook monitoringCron job / heartbeat monitoringSSL certificate expiry monitoringContent monitoring (keywords, regex, change detection, staleness)Public status pagesIncident tracking and alertingProgrammatic monitor management via AI agents/MCP

Features 15

1-minute check intervals
Audit logs (Business plan)
Automatic incident creation and resolution tracking
Branded status pages with custom domains
Content monitoring: keywords, regex matching, change detection, staleness alerts
Heartbeat monitoring for cron jobs and scheduled tasks
Maintenance windows to suppress false alerts
MCP Server for AI assistants (Claude, Cursor, Windsurf)
Multi-channel alerts (email, Slack, Discord, webhook, push notifications; Teams, Telegram, PagerDuty on paid plans)
Multi-region checks from 5 regions worldwide
REST API for programmatic monitor management
Second-region confirmation check to avoid false positives
SSL certificate expiry monitoring
SSO / SAML (Business plan)
Team member invitations with no per-seat charges

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

Fordevelopers, personal projects and side hustles, growing businesses, teams, organizations at scale

Integrations

SlackDiscordPagerDutyTelegramMicrosoft TeamsClaudeCursorWindsurf

Resources

Docs

Pricing

Prices shown are monthly; an annual option advertises 'Save 20%' but exact annual per-month figures are not publicly listed.

FreeFree

Free forever, no credit card required, no trial period

25 monitors, 3-minute check interval, 1 status page, 7-day log retention

Pro$5/mo

100 monitors, 1-minute check interval, 3 status pages, custom domain, All alert channels, Content monitoring, Maintenance windows, Full API access, 30-day log retention

100 monitors, 1-minute check interval, 3 status pages, 30-day log retention

Team$20/mo

Marked as 'Most Popular'

500 monitors, 1-minute check interval, 10 team members, 90-day log retention

Business$50/mo

Everything in Team, Unlimited monitors, 1-minute check interval, Unlimited status pages, Unlimited team members, SSO / SAML, Audit logs, 1-year log retention, Email support

Unlimited monitors, unlimited status pages, unlimited team members, 1-year log retention

Annual billing saves 20% (exact annual per-month prices not stated)