Rainbrand

Companies have brand guidelines, logos, fonts, and voice rules scattered across PDFs and files that are rarely kept up to date. As more work is created by AI agents and across many different tools (Claude, ChatGPT, Cursor, Codex), there is no single place for those agents to find the current, correct version of a brand. This leads to off-brand outputs such as wrong fonts, off-palette colors, or non-brand imagery, and no easy way to check or evidence why a piece of content is or isn't on brand.

Rainbrand lets a company add its brand once, starting from a website, a brand guide, or files like logos, fonts and photos, and turns these into a structured brand system (identity, guidance, assets). This brand context is then made available to agents over MCP or to a company's own product via a REST API. Users can edit the brand and push updates (for example a new voice rule) so every connected agent works from the latest version. The product also offers a