# alexndr.ai > A curated, machine-readable index of resources on building AI agents: papers, repos and posts with canonical URLs, licence notes, topics and short descriptions. Index-only and agent-first. - [index](https://alexndr.ai/) - [browse](https://alexndr.ai/browse.html) - [use-case](https://alexndr.ai/use-case.html) - [entry](https://alexndr.ai/entry.html) - [how-it-works](https://alexndr.ai/how-it-works.html) - [api](https://alexndr.ai/api.html) Contact: hello@alexndr.ai