> For the complete documentation index, see [llms.txt](https://docs.metarank.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.metarank.ai/reference.md).

# Reference

- [Installation](https://docs.metarank.ai/reference/installation.md)
- [Event Format](https://docs.metarank.ai/reference/event-schema.md)
- [Timestamp formats](https://docs.metarank.ai/reference/event-schema/timestamp-formats.md)
- [API](https://docs.metarank.ai/reference/api.md)
- [Command-line options](https://docs.metarank.ai/reference/cli.md)
- [Configuration](https://docs.metarank.ai/reference/overview.md)
- [Feature extractors](https://docs.metarank.ai/reference/overview/feature-extractors.md)
- [Counters](https://docs.metarank.ai/reference/overview/feature-extractors/counters.md)
- [Date and Time](https://docs.metarank.ai/reference/overview/feature-extractors/datetime.md)
- [Generic](https://docs.metarank.ai/reference/overview/feature-extractors/generic.md)
- [Relevancy](https://docs.metarank.ai/reference/overview/feature-extractors/relevancy.md)
- [Scalars](https://docs.metarank.ai/reference/overview/feature-extractors/scalar.md)
- [Text](https://docs.metarank.ai/reference/overview/feature-extractors/text.md)
- [User Profile](https://docs.metarank.ai/reference/overview/feature-extractors/user-session.md)
- [Diversification](https://docs.metarank.ai/reference/overview/feature-extractors/diversity.md)
- [Recommendations](https://docs.metarank.ai/reference/overview/recommendations.md)
- [Trending items](https://docs.metarank.ai/reference/overview/recommendations/trending.md)
- [Similar items](https://docs.metarank.ai/reference/overview/recommendations/similar.md)
- [Semantic similarity](https://docs.metarank.ai/reference/overview/recommendations/semantic.md)
- [Models](https://docs.metarank.ai/reference/overview/supported-ranking-models.md)
- [Data Sources](https://docs.metarank.ai/reference/overview/data-sources.md)
- [Persistence](https://docs.metarank.ai/reference/overview/persistence.md)
- [Deployment](https://docs.metarank.ai/reference/deployment-overview.md)
- [Standalone](https://docs.metarank.ai/reference/deployment-overview/standalone.md)
- [Docker](https://docs.metarank.ai/reference/deployment-overview/docker.md)
- [Kubernetes](https://docs.metarank.ai/reference/deployment-overview/kubernetes.md)
- [Prometheus metrics export](https://docs.metarank.ai/reference/deployment-overview/prometheus.md)
- [Custom logging](https://docs.metarank.ai/reference/deployment-overview/custom-logging.md)
- [Warmup](https://docs.metarank.ai/reference/deployment-overview/warmup.md)
- [Integrations](https://docs.metarank.ai/reference/integrations-overview.md)
- [Snowplow](https://docs.metarank.ai/reference/integrations-overview/snowplow.md)