3.5: Notion Developer Platform
Notion launched a developer platform on May 13, 2026, introducing Workers for custom code, an External Agents API, and a CLI to integrate data and agents directly into Notion databases.
Notion unveiled a developer platform enabling users to write code that syncs external data sources and deploys custom agents directly on its infrastructure. The External Agents API allows teams to integrate third-party agents like Claude or Codex, or build their own, turning Notion into a shared workspace for both human and AI collaboration. The platform removes the need for teams to manage servers, as Workers handle data synchronization and automation tasks automatically.
Workers, Notion’s new hosted runtime for custom code, enable deterministic logic for tasks such as converting PDFs into editable pages or generating reports from Salesforce data. The platform also introduces webhook triggers, allowing external apps to initiate actions in Notion, such as updating CRM records or closing tasks when a pull request merges. Workers will operate on Notion credits starting August 11, 2026, with a free beta period available.
A new CLI and Agent SDK expand programmatic control, letting developers embed Notion agents into other tools like CRMs or messaging platforms. The updated Connections tab consolidates all integrations, tokens, and API access in one place, simplifying management for teams. Notion also launched a library of pre-built agents from companies like Ramp and Vercel, each accompanied by setup guides to accelerate deployment.
Additional updates include a Markdown API for reading and writing pages, improved token efficiency in the Notion MCP, and expanded API access for all workspace members. The developer portal at app.notion.com/developers now centralizes tools for creating and managing connections, with rebuilt documentation and an AI assistant to streamline workflows.