Vigilon

Vigilon is a hosted application monitoring and error tracking service built on OpenTelemetry. It is aimed at small teams running Node.js and Python backends, with SDKs for Next.js, React frontend frameworks.

It records four things. Exceptions are grouped into error groups that can be resolved or muted, and a resolved group that comes back is flagged as a regression. Each request has a trace showing database queries and outgoing calls. Each endpoint has traffic, p50 and p95 latency, error rate and status codes. Background jobs such as cron tasks and queue workers are reported per run, each with its own trace, and a job with a schedule is flagged when a run is missed. And last but not least, ingested telemetry is analyzed around the clock and the alerts are sent whenever there's a anomaly detected such as a slower API endpoints, cronjobs that have missed their last runs, invalid sdk setups, and unusual increase in errors being reported from an app.

Setup is one package and one start flag for Node.js, or a launcher prefix for Python. Services that already emit OpenTelemetry traces can send them over OTLP/HTTP without the SDK.

A hosted MCP server lets coding agents such as Claude Code, Codex and VS Code with GitHub Copilot read error groups, traces, job runs and insights. It is read-only and uses the Vigilon account sign-in, so there is no API key.

Plans are priced on requests and job runs, not spans, and there are no overage charges.