SentryFSL-1.1-ALv2Our pick
An error-tracking and performance-monitoring service for web and mobile apps.
Best for: Catching and debugging frontend and backend errors with stack traces. Skip it if: Several people need access and the budget is $0.
Lovable connector; official hosted MCP mcp.sentry.dev (OAuth), usable on the free plan.
Developer
- 1 user
- 5,000 errors, 5M tracing spans, 50 session replays per month
- 5 GB logs, 1 cron monitor, 1 uptime monitor
- 30-day lookback
Only one user, so adding a teammate means the paid Team plan.
A cloud service for storing and querying logs, traces and events.
Best for: Storing lots of logs and events cheaply and querying them fast. Skip it if: You want a ready-made uptime or error-tracking tool rather than a log store.
Official hosted MCP mcp.axiom.co (OAuth, hosted in the US); the old local mcp-server-axiom repo is archived.
Personal
- 500 GB/month data loading (ingest)
- 30-day retention, 25 GB storage
- 10 GB-hours/month query compute
Retention is fixed at 30 days and query compute is capped at 10 GB-hours a month.
Axiom Cloud $25/mo + usage: 1 TB loading, 100 GB-hours queries
Checked 2026-10-27: axiom.co, axiom.co
A hosted observability platform for metrics, logs, traces and dashboards built on open-source Grafana.
Best for: Teams wanting dashboards, metrics, logs, traces and synthetic checks on open standards. Skip it if: You want a simple single-purpose tool for a one-person app.
Official MCP server github.com/grafana/mcp-grafana.
Free
- 10k active metric series; 50 GB each of logs, traces and profiles per month
- 14-day retention
- 3 active users
- 100k synthetic API checks + 10k browser checks/month; 50k frontend sessions
Data is kept only 14 days and active users are capped at 3.
A free, self-hosted uptime monitoring tool with alerts and status pages.
Best for: Free, self-hosted uptime monitoring with many alert channels. Skip it if: You don’t want to run your own monitoring server.
No official MCP server found.
Self-hosted (free)
- HTTP, TCP, ping, DNS, keyword, Docker and push monitors
- Checks as often as every 20 seconds
- 90+ notification services; multiple status pages
You host, update and back it up yourself, and it should run on a different server than the app it watches.
Free; you pay only for the server
Checked 2026-10-27: github.com
A website and API uptime monitoring service with alerts and status pages.
Best for: Generous free uptime checks for a handful of sites and APIs. Skip it if: You need checks more often than every 5 minutes for free.
Official hosted MCP (mcp.uptimerobot.com, OAuth or read-only API key); no delete operations over MCP.
Free
- 50 monitors at 5-minute intervals
- 1 basic status page on an UptimeRobot URL
- 5 integrations; no SMS/voice credits
- 3 months of data retention
The pricing page still pitches Free as 'good for hobby and non-profit projects’, although the terms updated May 26, 2026 say it 'is available for any use, including commercial’.
An uptime monitoring, status page, logging and incident-alerting platform.
Best for: Uptime checks, a status page and logs in one dashboard. Skip it if: You need logs kept longer than 3 days for free.
Official remote MCP server (OAuth) for monitors, heartbeats and log queries.
Free
- 10 monitors and heartbeats, checked every 3 minutes
- 1 status page; Slack and email alerts
- 3 GB logs and 3 GB traces kept 3 days; 30 GB metrics
- 100,000 exceptions/month
The pricing page labels the free tier 'Free for personal projects’, and phone-call alerts are paid features.