Available in secretjs@beta. 
Docs: GitHub - scrtlabs/secret.js: The JavaScript SDK for Secret Network
Code example: secret-metamask-demo/MetamaskStuff.tsx at 35577091d0ade303ae93f13e6c813730e7f33650 · scrtlabs/secret-metamask-demo · GitHub
Demo UI (works in mobile too!): https://secret-metamask-demo.pages.dev
Demo video: https://twitter.com/assafmo/status/1558576872245628930
So this assumes I already have some scrt in metamask wallet?
The above integration is only for the signing of transactions and not really the holding of SCRT tokens, for that we would still need to be integrated by metamask itself. I know that is confusing but yeah… thats it haha
You can have an account on MetaMask, just not see the balance inside the MetaMask extension yet
Also there are no apps yet the use MetaMask on Secret, but they’re coming…