# Sentinelboard

> Know your site is down before your customers do. Monitoring for SaaS builders.

- **Website**: https://sentinelboard.com
- **Uneed Page**: https://www.uneed.best/tool/sentinelboard
- **Pricing**: Freemium
- **Category**: Development
- **Tags**: Uptime, Domains, Monitoring
- **Submitted by**: @info-a133
- **Launch Date**: 2026-09-09
- **Social Links**: [Twitter](https://x.com/sidepreneur_dev)

## About

Most indie developers end up with one service for uptime, another for cron jobs, a calendar reminder for domain renewals, and nothing watching LLM costs. Sentinelboard brings all of that into one simple dashboard.

What it monitors:

- Website availability (uptime + response time)

- API responses with body validation - catches when the page is up but functionality is broken

- Cron job / heartbeat monitoring - detects missed or late scheduled jobs

- Domain expiration dates

- VPS / hosting renewal dates

- Error tracking

- LLM API calls, tokens, and costs via OpenTelemetry tracing

- OpenRouter credit balance

Alerts where you already are: Slack, email, Telegram, Discord, SMS, or webhooks. Pick the channel, set the threshold, done.

Built-in LLM observability tracks every LLM call - model, provider, tokens, cost, duration - and runs automatic anomaly detection to flag unusual cost or usage spikes. If you're building with AI APIs and want cost visibility without setting up a separate observability stack, this covers it.

Setup takes minutes. No infrastructure agents to install, no complex configuration - add your endpoints and monitors, and you're covered 24/7.

Free tier for side projects. Usage-based pricing after that - no per-seat fees, no long-term contracts.