Signalog
Signalog: A broad monitoring and incident-response platform with a useful free tier. Ranked #9 of 27 in API Monitoring Tools by our editors (8.6/10); pricing: Free plan; best for teams needing monitoring and incident response.
At a glance
- Editor score8.6 / 10
- PricingFree plan
- Best forTeams needing monitoring and incident response
- Free planYes
- Paid from$19/mo
- Response assertionsYes
- Facts checked20 Sep 2026
Where it wins
- API contract validation and multi-step synthetic monitoring
- Multi-region checks, anomaly detection, and response-time analytics
- On-call schedules, paging, status pages, and postmortems
Where it doesn't
- Free plan is limited to 5 monitors and 2 team members
- Free checks run at a 5-minute interval
- Advanced response workflows begin at the $49-per-month Pro plan
Our verdict on Signalog
Signalog is a web-based API monitoring and incident-response platform for software teams. It monitors HTTP endpoints, SSL certificates, heartbeats, and multi-step API workflows from multiple regions. Its scope extends beyond endpoint checks with API response-schema validation, anomaly detection, incident lifecycle tracking, on-call schedules, alert routing, status pages, service catalogs, and postmortem tooling. That makes it a fit for side projects, SaaS teams, larger engineering groups, and organizations operating critical infrastructure.
Pricing is structured for gradual expansion. The Free plan includes 5 monitors, 1 status page, 5-minute checks, 2 team members, 30-day data retention, and heartbeat and SSL monitoring. At $19 per month, Starter raises capacity to 25 monitors and 3 status pages, adds 1-minute checks, a custom status-page domain, Slack, Discord, and email alerts, plus 5 team members and 90-day retention. Pro costs $49 per month and adds 100 monitors, 10 status pages, checks across 5 regions, API contract checks, on-call schedules, escalation policies, and AI-drafted postmortems. Business costs $149 per month and adds 500 monitors, 50 status pages, 10 monitoring regions, multi-step synthetic checks, SSO/SAML, voice paging, and priority support.
The platform fits teams that want monitoring, alert delivery, and incident coordination in one product. Integrations include Slack, Discord, PagerDuty, Opsgenie, Microsoft Teams, Sentry, Datadog, CloudWatch, Grafana, email, webhooks, and web push. Multi-region checks use configurable confirmation thresholds, while response-time analytics include P95 metrics and deploy markers. Teams that need only basic uptime checks may find the broader incident tooling unnecessary; teams needing contract validation, escalation workflows, and status communication should consider Signalog.
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Signalog pricing
All 4 Signalog plans and prices →
Signalog fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $19/mo |
| Check frequency | 30 sec |
| Response assertions | Yes |
| Multi-region checks | Yes |
| Private locations | Not verified |
| Monitor limit | 25 monitors |
| Incident workflows | Yes |
| Money-back guarantee | 14 days |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | SSO/SAML, 2FA |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 11 integrations: Slack, Discord, PagerDuty, Opsgenie, Microsoft Teams, Email … |
| Pricing | Free plan (source) |
| Website | signalog.dev |
| Facts checked | 20 Sep 2026 |
Signalog integrations
Signalog lists 11 integrations on its own site.
- Slack
- Discord
- PagerDuty
- Opsgenie
- Microsoft Teams
- Webhooks
- Sentry
- Datadog
- CloudWatch
- Grafana
Alternatives to Signalog
- ObserveOne API MonitoringA flexible API monitoring service with strong automation, alerting, and self-hosted options.9.4
- APIContextDeep API and workflow coverage with a strong free tier and higher entry pricing.9.3
- Site24x7 API MonitoringA broad API monitoring option with multi-protocol checks, private locations, and mobile access.9.2
See all Signalog alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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