Turn an OpenAPI spec into a local API in one command. Build and test your frontend with custom responses, shared state, and simulated failures, without waiting for the backend.
vacuum is the worlds fastest and most versatile OpenAPI, AsyncAPI & JSON Schema linter, docs generator and toolkit. It tears through API specs at light speed. 100% compatible with Spectral rulesets, and OpenAPI 3.0, 3.1 and 3.2
Zero-boilerplate type-safe Rust configuration library — #[derive(Config)] with TOML/JSON/YAML/INI/.env sources, priority-chain merge, hot reload with canary rollout, field encryption, remote backends (etcd/Consul/Nacos/K8s), and diagnostic CLI