TLDR: Halliday saves those developing on Metis time, grow Metis TVL, and drive revenue via frictionless, embedded commerce.

For Metis, Halliday can add value in three core areas:

- On day one, developers can integrate MoonPay and Stripe.
- On day one, developers can offer a “Pay with Crypto” option, which makes it easy for users to pay into a rollup with their existing balances that reside on Base, Arbitrum, OP, or anywhere else.
- On day one, every developer on Metis will be enabled with seamless cross-rollup swaps, allowing dApp users to bring their balance from one rollup to another with simple one-click, embedded flows.