Castly — AI Writing Assistant & Knowledge Base

Castly is an AI writing assistant and knowledge management platform for content creators and marketing teams.

Castly is an AI writing assistant and knowledge management platform designed to streamline the research and drafting process for professional teams. It provides business owners and writers with a centralized environment to gather information and transform it into polished documents using modern natural language processing. By integrating a deep knowledge base with creative tools, Castly helps eliminate blank-page syndrome and speeds up the production of high-quality business assets. The platform offers a suite of collaborative features that allow multiple team members to edit and provide feedback in real-time. Castly includes customizable templates for various business needs, ranging from internal research reports to external marketing copy. Users can leverage the built-in content suggestions to refine their tone and structure based on specific project requirements. Finding reliable tools for editorial workflows is simplified on surfai.app where professional resources are curated for efficiency. In the 2026 business landscape, Castly serves as an essential repository for organizational knowledge, making it easier to onboard new writers and maintain brand consistency across all channels. The interface is built for speed, focusing on a distraction-free environment that prioritizes output over complex settings. You can explore the tool through a freemium model that offers basic features for individual users with paid upgrades for scaling teams.

Specifications

Pricingfreemium
IntegrationsGoogle Docs, Microsoft Word, Slack, Notion, Dropbox
Best forcontent-creators, marketing-teams, founders, freelance-writers
Website status checked2026-10-23T00:00:55.118+00:00

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