Redocly

Redocly is an API documentation and governance company founded in 2017 by the creators of the open-source ReDoc library, which became one of the most widely adopted open-source renderers for OpenAPI specifications with millions of monthly downloads. The company commercialized around that foundation by building an enterprise toolchain that extends beyond rendering to encompass the full API definition lifecycle including linting API specs against configurable style guides, bundling multi-file OpenAPI definitions, automating broken reference detection, and publishing versioned documentation portals. Redocly's developer portal product generates three-panel API reference documentation — the industry-standard layout with navigation, prose, and code samples side by side — from OpenAPI and AsyncAPI specs with deep customization through React components. The platform includes a CLI tool that integrates into CI/CD pipelines to enforce API design standards at the commit level, enabling API governance programs where style rules are enforced automatically rather than through manual review. Redocly competes with Stoplight, ReadMe, and Bump.sh and is positioned as the enterprise-grade choice for companies with large API surface areas, multiple teams contributing to specs, and formal API governance requirements. The company is bootstrapped and profitable, with customers including SAP, Zuora, and Adyen.