Meta Muse

https://muse.ai

Free metered tier; Power $20/month; Maximum $100/month

Muse Secure VM — Dedicated isolated cloud computer and browser
Sentinel Agent — Separate system reviews actions before internet access
Background Execution — Continues projects after the app is closed
Persistent Memory — Learns preferences and can suggest actions proactively
App Connections — Granular access to email, calendars, shopping, and more
Secure Credentials — Uses logins and payment methods without seeing raw values
Action Confirmations — Requests approval for messages, purchases, and other sensitive steps
Audit Trail — Shows completed and planned actions
Multi-surface Access — Web, iOS, Android, and WhatsApp
Muse Spark — Multimodal, tool-using agent model

Completes multi-step tasks instead of only answering questions
Works in the background across connected apps and websites
Dedicated isolated virtual machine for every user
Separate Sentinel layer reviews internet-bound actions
Credentials and payment methods are hidden from the agent
Granular read-versus-act permissions for connected services
Confirms sensitive actions and provides a full audit trail
Accessible through web, mobile apps, and WhatsApp

Security and reliability claims have little independent real-world validation
Useful personalization requires access to extensive private context
Currently limited to U.S. adults
Free and paid usage allowances are not clearly published
Persistent memory may preserve stale or incorrect assumptions
Browser-based tasks may break when websites change
Too new for unsupervised financial, medical, or business-critical work
Not independently tested with live connected accounts