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Sysmos
What it is
Sysmos combines synthetic API monitoring, Linux server observability, and a centralized dashboard. Endpoint checks run across global regions and report status, SSL, latency, and timing phases for DNS, TCP, TLS handshake, server processing, and content transfer. Per-phase averages and maximums are available over one-hour, 24-hour, and seven-day periods. A flow builder chains API steps, extracts variables, and applies assertions; flows run on demand or on schedules. The Linux eBPF agent for x86_64 and arm64 captures syscall, network, CPU, and memory data, with stated CPU overhead below 2%. Alerts can use Slack, Discord, PagerDuty, email, or HTTP webhooks. Workspaces provide admin, developer, and viewer roles, plus API keys for CI/CD and infrastructure-as-code. The Free plan costs nothing; Team costs $29 a month, and Business costs $99 a month. Platforms listed are API, Linux, and web.
For and against
For
- Multi-region synthetic API checks
- Detailed response-time phase breakdowns
- Linux eBPF agent for two architectures
- Slack, Discord, PagerDuty, and email alerts
- Free plan available
Against
- Free plan limits monitors and flows
- Free checks use one region
- Business plan costs $99 a month
The verdict
Sysmos links API flows, regional checks, Linux telemetry, alert channels, and team permissions in one service. Its plans scale from a constrained free tier to paid monitoring and retention options.
Who it suits
Sysmos is designed for small teams, with the Free plan presented for solo developers and personal projects. It fits users needing API checks alongside Linux metrics and alert routing.
Plans and prices
Free
10 API monitors · 5 flows · 1 region · 60s min interval
Read 7 Oct 2026 · sysmos.org
Team
100 monitors · 50 flows · all 12 regions · 30s interval
Read 7 Oct 2026 · sysmos.org
Business
Unlimited monitors and flows · 10s interval · custom regions · SSO
Read 7 Oct 2026 · sysmos.org
On the record
- Alert integrations
- Built-in alert channels include Slack, Discord, PagerDuty, and email, with generic webhooks for HTTP endpoints.sysmos.org · read 7 Oct 2026
- API flows
- The flow builder chains API steps with variable extraction and per-step assertions, and flows can run on demand or on a schedule.sysmos.org · read 7 Oct 2026
- API monitoring
- It runs synthetic endpoint checks across global regions and reports latency, status, SSL, and timing breakdowns.sysmos.org · read 7 Oct 2026
- Integration details
- The integrations page says Slack uses OAuth and supports multiple workspaces, PagerDuty uses Events API v2, and webhooks support Mustache templating and retries.sysmos.org · read 7 Oct 2026
- Intended users
- Sysmos describes itself as designed for small teams and presents the Free plan for solo developers and personal projects.sysmos.org · read 7 Oct 2026
- Latency detail
- Checks break timing into DNS, TCP, TLS handshake, server processing, and content transfer, with per-phase averages and maxima over 1-hour, 24-hour, and 7-day periods.sysmos.org · read 7 Oct 2026
- Product
- Sysmos combines distributed API health checks, kernel-level server observability, and a centralized monitoring dashboard.sysmos.org · read 7 Oct 2026
- Security and residency
- The homepage states that SOC 2 is in progress and that EU and US data residency are available.sysmos.org · read 7 Oct 2026
- Server agent
- Sysmos offers an eBPF Linux agent for x86_64 and arm64 that captures syscall, network, CPU, and memory data; the maker states CPU overhead is under 2%.sysmos.org · read 7 Oct 2026
- Setup
- The maker says users can add an API endpoint, install the Linux agent with one curl command, and route alerts, with setup taking under five minutes.sysmos.org · read 7 Oct 2026
- Team access
- Workspaces support admin, developer, and viewer roles, and API keys for CI/CD and infrastructure-as-code.sysmos.org · read 7 Oct 2026
