# @sanity/client > @sanity/client is the official JavaScript library used to interact with the Sanity.io Content Lake. It enables developers to perform data fetching using GROQ, execute mutations, and manage real-time subscriptions in both web browsers and Node.js environments. - URL: https://optimly.ai/brand/sanity-client - Slug: sanity-client - BAI Score: 62/100 - Archetype: Challenger - Category: Software Development Tools - Last Analyzed: April 11, 2026 ## Competitors - Contentful Sdk (https://optimly.ai/brand/contentful-sdk)