Sysmos

7.6easy start · #9of 27
in API Monitoring Tools
  • Free to practise onyes
  • Free trialyes
  • Well documentedyes
  • Runs where you workno

Runs on api, Linux, Web. Paid plans from $29/mo.

Sysmos combines distributed API health checks, Linux server observability, and a centralized monitoring dashboard. Its synthetic endpoint checks run across global regions and report latency, status, SSL, and timing details. Timing is divided into DNS, TCP, TLS handshake, server processing, and content transfer, with per-phase averages and maxima over one-hour, 24-hour, and seven-day periods. A flow builder chains API steps, extracts variables, and applies per-step assertions; flows can run on demand or on a schedule. For Linux servers, an eBPF agent for x86_64 and arm64 captures syscall, network, CPU, and memory data. The maker states CPU overhead is under 2%. Alert channels include Slack, Discord, PagerDuty, email, and generic webhooks. Workspaces provide admin, developer, and viewer roles, plus API keys for CI/CD and infrastructure-as-code. Sysmos lists API, Linux, and web platforms, and says setup can take under five minutes. Its Free plan includes 10 API monitors, five flows, one region, a 60-second minimum interval, five team members, one organization, and seven-day log retention. Team costs 29.00 USD per month; Business costs 99.00 USD per month. The maker says SOC 2 is in progress and EU and US data residency are available.

Who it is for

Sysmos is designed for small teams and presents its Free plan for solo developers and personal projects. It can suit teams needing API checks, Linux agent data, alert routing, and shared roles.

What is good

  • Checks APIs across multiple regions
  • Flows support variables and per-step assertions
  • Linux agent captures syscall and resource data
  • Alerts include Slack, Discord, PagerDuty, and email
  • Workspaces offer three access roles

What to know first

  • Free plan has one region
  • Free plan retains logs for seven days
  • Linux agent supports x86_64 and arm64

Verdict

Sysmos brings API monitoring, Linux observability, and alert routing together, with plan limits that vary by team size and retention needs. Check the Free plan’s region and log limits against your monitoring requirements.

Sysmos plans and pricing

All plans
Free Free 10 API monitors · 5 flows · 1 region · 60s min interval · 5 team members · 1 organization · 7-day log retention sysmos.org · 7 Oct 2026
Team $29/mo 100 monitors · 50 flows · all 12 regions · 30s interval · unlimited members · 5 orgs · 30-day retention · all integrations · server agent included sysmos.org · 7 Oct 2026
Business $99/mo Unlimited monitors and flows · 10s interval · custom regions · SSO · audit logs · SLA · 1-year retention · priority support sysmos.org · 7 Oct 2026

Compared on API monitoring tools

Free plan
Yes
Paid from
$29/mo
Response assertions
Yes
Multi-region checks
Yes
Monitor limit
100 monitors
Incident workflows
Yes

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