Notion has launched its Developer Platform, transforming its workspace from a knowledge base frontend to a robust internal integration platform. The platform's core feature, Workers, allows developers to write and deploy lightweight programs using Node/TypeScript via the Notion CLI "ntn" to an official sandbox. This enables synchronization of external data, reception of webhooks, and addition of custom tools for Notion Agents. The platform introduces Database Sync, which continuously imports data from external systems like Salesforce, Zendesk, GitHub, and Stripe into Notion databases, accessible to teams and Agents. Notion's infrastructure supports these sync tasks, removing the need for separate enterprise servers. Additionally, the External Agents API allows integration with AI systems such as Claude and Codex, enabling them to interact within Notion as native members. The Agent SDK, in private alpha, aims to let external systems trigger Notion's Custom Agents directly, marking a significant evolution in Notion's capabilities.