#29 in Monitoring & ObservabilityUpdated 2026-08

Checkmate

by Checkmate · Self-hosted uptime, server and container monitoring under AGPL-3.0

43.9 — BenchRank score out of 100

Homepage

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Overview

Checkmate is self-hosted infrastructure monitoring covering HTTP, ping, TCP, gRPC, WebSocket, DNS, PageSpeed, server, Docker and game-server checks in one dashboard. Uptime checks can run from six continents through GlobalPing, server metrics come from the Capture agent, and alerts go to email, Slack, Discord, Telegram, SMS or webhooks. It also publishes branded public status pages.

Best for: Teams who want to self-host uptime, server and container monitoring instead of paying per host.
Pricing: No prices are shown; the page describes the software as free forever, self-hosted and open source under AGPL-3.0.
Runs on: Self-hosted

Strengths and trade-offs

Strengths

Ten monitor types, from HTTP and DNS to Docker and game servers
AGPL-3.0 source, self-hosted, no per-monitor or per-host pricing
Alerts to email, Slack, Discord, Telegram, SMS and webhooks
Deploys via Docker Compose, Helm or bare metal

Trade-offs

You run and maintain the stack; no vendor-hosted option beyond PikaPods
AGPL-3.0 copyleft applies if you distribute a modified version
Server metrics require the Capture agent installed on each machine
No paid support plan listed; help comes via Discord and GitHub

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
API quality: 10 out of 100
Documentation: 80 out of 100
Agent friendliness: 76 out of 100
Changelog: 100 out of 100
Marketing site structure: 60 out of 100
Operational trust: 15 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 65 out of 100
Maintenance: 100 out of 100

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