Payload is an open‑source, code‑first backend and headless CMS built on Next.js that lets teams simplify their stack and build anything, from content sites and headless e‑commerce to enterprise apps and digital asset management, using a single, extensible framework. Developers can scaffold projects instantly with npx create-payload-app, define schemas in fully typed JavaScript configurations, and auto‑generate REST APIs for any supported database adapter, while marketers use a minimal, elegant admin UI offering visual editing, live preview, localization, multi‑tenancy, white‑label branding, granular access control, authentication, and real‑time RAG‑ready vector embeddings without manual effort. Payload also delivers enterprise features such as Single Sign‑On (SSO), AI auto‑embedding, static AB testing, and configurable publishing workflows.