# OS37 > OS37 is the AI operating layer for healthcare. The OS37 API is not yet publicly available; access is granted on request. ## Docs - https://os37.tech/docs#quickstart: Quickstart — base URL, authentication, first request (values pending: TODO) - https://os37.tech/docs#authentication: Authentication scheme and how to obtain an API key - https://os37.tech/docs#access: Request access / API key (no self-serve signup yet) - https://os37.tech/docs#rate-limits: Rate limits and retry guidance - https://os37.tech/docs#errors: HTTP status codes and common errors ## Machine-readable - https://os37.tech/agents.md: Integration notes written for AI agents - https://os37.tech/openapi.json: OpenAPI 3.1 document (endpoints not yet published) - https://os37.tech/sitemap.xml: Sitemap ## Contact - https://os37.tech/#contact: Contact form (opens directly); email contact@os37.tech