The problem
How it works
Meta launched Muse in September 2026 as a personal agent you message like a person, in the Muse app or in WhatsApp. It can send email, book travel, open a browser, fill in forms and negotiate for you, and it keeps working after you close the app. It comes back for approval before sensitive actions such as sending an email or making a purchase, and pays through Link by Stripe, which issues a one-time card number. Muse runs in Muse Secure VM, a dedicated cloud computer, alongside a separate Sentinel agent that must approve anything Muse sends to the internet. Credentials go into storage Muse can use but not read, you choose which apps it connects to and how much access each gets, and you can see an audit trail of what it did and plans to do.
Results and limitations
This is a launch announcement. Meta says Muse gets better results with less effort, giving examples such as selling a car for more or lowering a bill, but publishes no figures or case studies.
Before you try it
Negotiating and buying on your behalf have real consequences, so start with low-stakes errands, keep approvals on and give email read access before send access. The VM and Sentinel protections are Meta’s own description and have not been independently audited. You can opt out of your interactions being used to train Meta’s models and ask Muse to forget specific details. Muse launched in the US on iOS, Android and muse.ai, free for most uses with paid plans. Results depend on your setup and were not independently reproduced by Top 200 Repos.
Tools and repositories
No ranked repository is involved. This use case still stands on its own source.
- Tools
- Muse app or WhatsApp · Link by Stripe for purchases
- Prerequisites
- A Muse account in a supported country (the US at launch) on iOS, Android or muse.ai.
Try it yourself: Brief a personal agent on an errand with spending and contact limits
Fill the fields to adapt the prompt. Empty fields stay as visible [placeholders].
I need help with [Errand]. My budget is [Budget] and it needs to be done by [Deadline]. Research the options and show me the best three with prices and any fees before you contact anyone or buy anything. You may fill in forms with details I have approved, but ask me before sending any email or message, before any purchase and before sharing my phone number or address. Keep a short log of each step you take.Connect only the apps this errand needs and remove access afterwards.
Sources
- Introducing Muse: The World’s First Personal AI Agent Built for Everyone (opens in a new tab)
Vendor post · about.fb.com · Published 8 Sept 2026 · Source checked 12 Nov 2026, 07:54 UTC
What this source supports
- Muse is a personal agent used through the Muse app or WhatsApp that can email, book travel, fill in forms and negotiate
- Keeps working after the app is closed and asks for approval before sending email or making a purchase
- Checks out with Link by Stripe using a one-time-use card
- Runs in Muse Secure VM with a separate Sentinel agent that approves anything sent to the internet
- Credentials are stored so Muse can use them without seeing them; users control app access and see an audit trail
- Users can opt out of training use and ask Muse to forget details; data is not shared with Meta ad systems
- Rolling out in the US on iOS, Android and muse.ai, free for most uses with subscription plans