Guides

How to find out when an automation stops running or starts producing bad output, with copy-paste setups for n8n, Make, Zapier, cron and AI agents.

Monitoring guides

Why n8n workflows fail silently, and how to get alerted

The failure modes that never produce a failed execution, and how to add an Error workflow plus a heartbeat so you hear about all of them.

Monitoring Make.com scenarios for errors and missed runs

How Make's error handlers, incomplete executions and auto-deactivation behave, and how to get alerted when a scenario stops running.

Zapier: get notified when a Zap stops running

When Zapier turns a Zap off or holds its runs, what error emails cover, and how to add a heartbeat that alerts on silence.

Cron job monitoring with heartbeat pings

Cron ignores exit codes and often discards output. Add curl heartbeats, /start and /fail signals and a reusable wrapper script.

Monitoring AI agent runs for empty or bad output

Agents fail by returning empty, truncated or refused output while the run says success. Catch it with heartbeats and output checks.

n8n Error Trigger vs heartbeat monitoring

Which n8n failures the Error Trigger catches, which only a heartbeat catches, and how to wire both together.

Validating workflow output: empty results and invalid JSON

Treat empty or malformed results as failures. Check for emptiness, valid JSON and required keys on every run.

Heartbeat monitoring explained (the dead man's switch)

What heartbeat (dead man's switch) monitoring is, how it differs from uptime checks, and how to set periods, grace and signals.

Comparisons

Fair comparisons with other heartbeat monitors, including when to choose them instead.

Flowhush vs Healthchecks.io

Pricing, schedules, output checks, integrations and self-hosting compared, plus when Healthchecks.io is the better choice.

Flowhush vs Cronitor

Per-monitor vs flat pricing, schedules, metrics vs output checks and alerting compared, plus when Cronitor is the better fit.

Flowhush vs Better Stack heartbeats

Pricing, failure reporting, payload checks, on-call alerting and status pages compared, plus when Better Stack is the better pick.