# Klag — comparisons

> Klag is an open-source Kafka consumer lag exporter built with Vert.x and Micrometer. It monitors consumer lag, lag velocity, hot partitions, time-based lag, data-loss risk, and consumer-group state, and exports to Prometheus, Datadog, or OTLP (OpenTelemetry). It also exposes an opt-in read-only MCP endpoint for AI agents. The docs include comparisons with other Kafka tools (Burrow, KMinion, AKHQ, Confluent Control Center, Redpanda Console, Grafana, Cruise Control) and guides on how Kafka consumer lag works, common monitoring mistakes, and detecting stuck consumers.

Full index: https://klag.dev/llms.txt | Full text: https://klag.dev/llms-full.txt

## Docs

- [Klag vs AKHQ](https://klag.dev/comparisons/klag-vs-akhq/): AKHQ is a Kafka web UI for browsing topics, messages, and groups; Klag is a headless consumer-lag metrics exporter. They solve different problems and are often run together.
- [Klag vs Burrow](https://klag.dev/comparisons/klag-vs-burrow/): Klag and Burrow both monitor Kafka consumer lag. Burrow evaluates lag against status rules and sends notifications; Klag exports richer lag metrics to Prometheus, Datadog, and OTLP.
- [Klag vs Confluent Control Center](https://klag.dev/comparisons/klag-vs-confluent-control-center/): Confluent Control Center is the full Confluent Platform management UI; Klag is a lightweight open-source consumer-lag exporter for Prometheus, Datadog, and OTLP. They serve different needs.
- [Klag vs Cruise Control](https://klag.dev/comparisons/klag-vs-cruise-control/): Cruise Control rebalances Kafka partitions and heals the cluster; Klag observes consumer lag read-only. Different jobs — you monitor with Klag and remediate with Cruise Control.
- [Klag vs Grafana](https://klag.dev/comparisons/klag-vs-grafana/): Grafana visualizes and alerts on metrics; Klag produces the Kafka consumer-lag metrics. They aren't alternatives — you run Klag as the data source and Grafana as the dashboard.
- [Klag vs KMinion](https://klag.dev/comparisons/klag-vs-kminion/): Klag and KMinion are both Prometheus exporters for Kafka. KMinion covers broader broker/topic metrics; Klag focuses on deeper consumer-lag signals and adds Datadog and OTLP output.
- [Klag vs Redpanda Console](https://klag.dev/comparisons/klag-vs-redpanda-console/): Redpanda Console is a web UI for browsing Kafka/Redpanda topics, messages, and groups; Klag is a headless consumer-lag metrics exporter. Different jobs, often run together.
- [Klag vs other Kafka tools](https://klag.dev/comparisons/overview/): How Klag compares to Burrow, KMinion, AKHQ, Confluent Control Center, Redpanda Console, Grafana, and Cruise Control for Kafka consumer lag monitoring.