Ethereum Account Abstraction

AA experts:

~6 months ago, it was my understanding that passkey wallets weren’t viable because they use cryptography that is too expensive to verify onchain (hence EIP 7212 etc). 

But now everyone is making them. 

What changed? 🤔

musician: gigameshmusic.com | dev: github.com/gigamesh

A few things IMO:
1. low gas cost chains like Base (and gas sponsorships)
2. EIP 7212 native implementation going live in multiple chains, lowering costs significantly
3. End users are getting more used to the concept of passkeys, which was also a blocker before

Building dynamic.xyz | @dynamic | Craft magical onchain sign up experiences  - embedded wallets, login, user mgnt, authz and more | Demo: demo.dynamic.xyz

Got it - so the verification cost hasn’t changed but it’s small enough on L2 and will be much smaller with 7212?

That's right. There still is a cost. It's just smaller and getting even smaller. 

Also with 4337 you get counterfactual addresses, so you defer the first contract deployment cost until first transaction, not during wallet creation.