Building
Observability
Signal
Alerting and on-call, self-hosted.
A PagerDuty-shaped alerting brain that evaluates rules against telemetry and fans out across seven channels with escalation and on-call schedules.
Building
Observability
Beacon
Multi-region uptime monitoring + status pages.
Monitors HTTP, SSL, DNS, and TCP from global nodes, opens incidents on failures, and publishes public status pages.
Building
Observability
Sentinel
Host and container monitoring for self-hosted infra.
A ~10MB agent that streams CPU, memory, disk, network, process, and Docker metrics every 10 seconds — observability for operators running their own VMs.
Building
Observability
Vision
Visual regression + AI browser automation.
Captures screenshots, diffs against baselines, and runs autonomous agents in real browsers — bridging the long tail of API-less legacy systems.
Building
Observability
Pulse
APM with real-time traces and metrics.
Application performance monitoring on TimescaleDB — request/job traces, span waterfalls, throughput, error rates, and Apdex — with an MCP server for agents.
Building
Observability
Recall
Structured, queryable logs with an AI-native query language.
JSONB logs with full-text indexing, session grouping, and a custom query language — exposed via MCP so agents can diagnose production directly.
Building
Observability
Reflex
Error tracking with instant triage.
Fingerprints errors into groups, captures full context, and supports real-time status — a lower-cost alternative to Sentry, with MCP triage tools.
Live
Analytics
Flux
Events, metrics, and anomaly detection.
Track custom business events and build metric dashboards with built-in anomaly detection — gauges, counters, distributions, and alerts when things spike or drop.
Building
Observability
Nerve
Background-job monitoring across Ruby backends.
One dashboard for Sidekiq, Solid Queue, Resque, GoodJob and more — queue size, wait time, duration, failures, and worker health, with MCP retry tools.
Building
Infrastructure
Cortex
Feature flags and gradual rollout for Rails.
A decision layer that answers whether to enable a feature for a user, environment, or segment — A/B tests, progressive rollouts, and targeting.