BraFinder in ChatGPT
Use BraFinder inside ChatGPT and Claude
Cross-brand bra sizing, answered live inside your AI assistant. Translate any size across 33 brands, see which brands run small or large, and find in-stock bras in your size, with links back to the products.
What you can ask
- “What's a 34DD in Panache and Freya?”
- “Which bra brands run small?”
- “Convert my Victoria's Secret 34C to ThirdLove.”
- “Find in-stock 32G bras, cheapest first.”
- “Is a 36D the same across brands?”
How to connect it
In ChatGPT, turn on Developer Mode (Settings, then Connectors, then Advanced), start a new chat, open the + menu, add a connector, and paste this address:
https://www.brafinder.com/api/mcp/mcpIn Claude or another MCP client, add the same address as a custom connector (Streamable HTTP). It is public and read-only, so there is nothing to sign in to.
The same verified data as the site
Every answer comes from BraFinder's cross-brand offset table, where each brand is mapped to a neutral reference size with a confidence score. See the methodology or the machine-readable dataset.
Questions
- Is the BraFinder ChatGPT app free?
- Yes. It answers from the same public data the website runs on. No account, no charge.
- What data does it collect?
- None about you. You give a size or a brand and it returns an answer; nothing is stored.
- Does it work in Claude too?
- Yes. It is a standard MCP server, so any MCP client (Claude and others, plus ChatGPT) can add the same endpoint.
- Where do the numbers come from?
- From BraFinder's cross-brand offset table: 33 brands mapped to a neutral reference size, with a confidence score on every translation. See the methodology page.