# Enzo

> Enzo is a machine-authentication service for issuing, managing, and verifying API keys over HTTP.

## Documentation

- [Core concepts](https://enzoguard.com/docs/concepts.md): Understand Enzo realms, apps, system keys, and customer API keys.

- [HTTP API reference](https://enzoguard.com/docs/api-reference.md): Enzo HTTP endpoints and its canonical OpenAPI contract.

- [Documentation for AI agents](https://enzoguard.com/docs/ai-access.md): Discover and consume Enzo documentation as Markdown.


## Blog


## Machine-readable resources

- [Complete documentation](https://enzoguard.com/llms-full.txt)
- [OpenAPI contract](https://enzoguard.com/openapi.yaml)
- [Sitemap](https://enzoguard.com/sitemap.xml)