Free
Perfect for personal projects and side experiments.
$0
- 20 monitors · 3 min checks
- Checks from 1 region
- 1 status page
- 3 heartbeats
- 7 days history
- API + MCP included
Your stack, in
fine fettle.
Uptime monitoring that plugs into how you already work — REST API on every plan, MCP for Claude and Codex, status pages, badges. When something breaks, Fettle tells you why.
Marketing siteHTTP · every 1m
EU Central96 ms
US East397 ms
AP Southeast534 ms
99.99% · last 90 days3/3 regions up
Fettle, monitoring itself — see it live: status.fettle.sh
Probes: HTTP · TCP · PING · DNS · SSL · CRON HEARTBEATSChecking from Europe · US · AsiaAlerts in email · Telegram · Slack · Discord · webhook
/ agent-native
Your agent runs it.
Fettle ships an MCP server — in the official registry. Tell Claude or Codex to add monitoring, and it happens: monitors, heartbeats, on-demand checks, incident acks. The full REST API and API keys are on every plan, including free.
remoteNothing to install
https://api.fettle.sh/mcpPoint any MCP client at it — your API key as a Bearer token.
localstdio, from npm
npx -y fettle-mcpWorks with Claude, Codex, and any MCP client. MCP setup docs → · API reference
agent session
$ claude mcp add fettle --transport http https://api.fettle.sh/mcp --header "Authorization: Bearer fettle_your_key_here"
Add uptime monitoring for fettle.sh and check it right now.
→ create_monitor target=https://fettle.sh
✓ monitor created · eu-central, us-east, ap-southeast
→ check_now
✓ UP from 3 regions · median 96 ms
→ list_incidents
✓ no open incidents — you're covered
HTTP_5XX
api.acme.dev — HTTP 503 from every region
14:02:11us-east DOWN — HTTP 503
14:02:12monitor DEGRADED — no alert yet
14:02:19eu-central DOWN — HTTP 503
14:02:24ap-southeast DOWN — HTTP 503
14:02:24unanimous → incident opened · Telegram + email sent
One flaky region never pages you — it shows as DEGRADED. An incident opens only when every region agrees your target is down.
/ signal, not noise
Alerts that say why.
Every incident carries a structured cause — timeout, DNS, TLS, 5xx, a missed heartbeat — with the failing regions and timestamps. Acknowledge to silence re-notifications; maintenance windows keep planned work from paging anyone.
/ the product
One dashboard. Yours and your agent's.
Monitors, heartbeats, incidents, maintenance, API keys — everything lives in one place. Your status page is what your users (or your clients) see.
dashboard.fettle.sh/monitors
/ free tools
Try before you sign up.
Free tools, no account needed. Same probes that power the paid product.
/ features
Everything a developer needs. Nothing else.
Probes
- HTTP, TCP, ping, DNS, SSL
- Cron heartbeatsa job that missed its ping is an incident
- Certificate expiry warnings
Alerting
- Email, Telegram, Slack, Discord, webhooks
- Ack & renotify
- Maintenance windowsrecurring — weekly, monthly, in your org's timezone
Status pages
- Public page on every plan
- Subscriptions & incident updates
- White-label on Max
API & workflow
- REST API + keys on every plan
- MCP serverofficial registry: sh.fettle/mcp
- Teamsorganizations, invites, roles
- Tags across monitors & heartbeats
- Uptime badges for your READMEuptime100%
Guides for real setups — client sites, cron jobs, side projects: Use cases →
/ pricing
Free while you're small.
Honest when you grow.
Free is real — no card, not a trial.
Plus
For indie devs going past the free tier.
$9/mo
- 50 monitors · 1 min checks
- Checks from 2 regions
- 1 status page
- 20 heartbeats
- 90 days history
Pro
For serious developers running production.
$19/mo
- 100 monitors · 1 min checks
- Checks from all regions
- 3 status pages
- 50 heartbeats
- 180 days history
Max
For teams and agencies running infrastructure for clients.
$39/mo
- 300 monitors · 30 sec checks
- Checks from all regions
- 10 status pages
- 150 heartbeats
- 1 year history
- White-label status pages
Need more? Enterprise — unlimited everything, contact us.How we compare: UptimeRobot, Pingdom →
See full pricing →Get your stack in fine fettle.
Free plan, no card — paste a URL, or let your agent do it.