Brivvy

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Brivvy is brand voice infrastructure for the AI era. It enforces consistent tone, style and terminology across every AI client a team uses, including Claude, ChatGPT, Cursor, Windsurf and Copilot, through the Model Context Protocol (MCP). Teams define their brand voice rules once, and Brivvy delivers those rules directly into every AI interaction.Every piece of generated content sounds like the brand, not a generic LLM. No more copy-pasting style guides into prompts. No more inconsistent outputs across tools and teammates. One source of truth that follows the team everywhere AI does. Brivvy works at the infrastructure layer, sitting between AI clients and the teams that use them. Brand voice rules are enforced automatically, covering tone, formatting, punctuation, terminology and structure, without requiring anyone to remember or manually apply them. The platform supports multiple brand voices for different contexts (marketing, support, leadership) and includes templates for structured content types. Brivvy is available in three tiers: Free, Business and Enterprise. MCP access is included on all plans.