WalletPassBuilder for ChatGPT

com.walletpassbuilder/mcp

Create, update and message Apple Wallet and Google Wallet passes and loyalty cards.

client:ChatGPT transport:streamable-http

Install WalletPassBuilder in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://walletpassbuilder.com/api/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs