DeepL Write vs StyleMCP

DeepL Write is a writing assistant for revising text with corrections, alternative wording, rephrasing, and selectable styles and tones. It lists 19 writing languages. Users can access it through mobile and desktop apps, browser extensions, or integrations with Microsoft Word, Google Workspace, Microsoft 365, and AI agents. Extensions are available for Chrome, Firefox, and Edge; listed apps include Windows, Mac, Android, iPhone, and iPad. The free version includes 50,000 characters per user per month and one file translation per user per month, for files up to 5 MB. The Write Pro add-on costs €6.99 a month, billed annually with VAT included, and is available as an add-on to DeepL Pro Individual or Team. Team plans include administration, analytics and reporting, and single sign-on; teams can share a file translation limit or assign the same limit to each member. DeepL cites ISO 27001 and SOC 2 Type II certified processes and infrastructure. For Pro, content is temporarily stored only as technically needed, then deleted unless otherwise specified.

StyleMCP checks AI-generated copy against brand rules, provides scores and actionable fixes, and can rewrite drafts to fit a brand voice. Its Learn My Voice feature analyzes supplied content to produce custom style rules. Users can start with SaaS, E-commerce, Healthcare, and Finance style packs or define rules in YAML. The AI Trust Layer is described as identifying voice drift, compliance risks, and hallucination patterns. Connections include MCP support for Claude and Cursor, a REST API, CLI, and GitHub Actions for CI/CD; the maker says it works with Claude, GPT, Llama, and any model. The core validation engine is open source and can run on a user's infrastructure with Docker Compose. The free plan includes 5,000 requests per month; Pro costs $9 a month and includes 25,000 requests. Each validate, rewrite, or batch API call counts toward usage, with batch requests counted by items. When a quota is exceeded, API requests return a 429 error until the monthly reset on the first.