Meta Launches Muse AI Agent in Japan

Meta has brought Muse, its personal AI agent, to Japan, the first country it has entered since launching the product in North America in September. The company announced the rollout on 23 October, making Japan the testing ground for how an “agent that does the work” travels beyond its home market.

Muse is pitched as more than a chatbot: a persistent assistant that takes on tasks and longer goals, opens a browser on the user’s behalf, fills in forms and comes back for approval before it does anything consequential. TSN first covered the product when it arrived on iPad alongside Google’s Playground, and later when Meta released the Muse Wonder models built for agentic work. The Japan launch puts that stack in front of a new, non-English market for the first time.

In brief

Meta has launched Muse, its personal AI agent, in Japan — the product’s first market outside North America, where it debuted in September.
The app is on iOS, Android and the web, free for basic use with paid tiers, and ships with connectors for Gmail, Instagram, Stripe and travel apps; local tie-ups with Mercari, Money Forward and Ticket Pia are in progress.
Meta repeats its security pitch — a per-user secure VM, a separate gatekeeper agent and no visibility into passwords — all of which remain the company’s own claims.

What Japanese users get

The app is available on iOS, Android and at muse.ai, free for most everyday use, with subscription tiers for heavier users. Out of the box it connects to a familiar set of services — Gmail, Google Calendar, Instagram, Stripe, Shopify and travel apps Trip.com, Agoda and Klook — so it can read a calendar, act on a saved Instagram post or book a trip.

The more interesting part is local. Meta says integrations with Japanese services are in progress, naming the resale marketplace Mercari, the personal-finance app Money Forward ME and ticketing service Ticket Pia. Those are not live yet, but they signal the strategy: an agent is only as useful as the apps it can touch, and in Japan that means the services people actually use. “We want to connect Muse with services people use regularly so it can help them in a wider range of situations,” Masahiro Ajisawa, Meta’s representative director in Japan, told reporters, in remarks rendered into English by Kyodo News.

The security pitch, restated

Giving an agent access to email, calendars and payments raises an obvious question, and Meta answers it the way it did at launch. Each person’s Muse runs on its own “Muse Secure VM”, a dedicated cloud machine walled off from everyone else’s. A separate “Sentinel” agent sits on the same machine and must approve anything Muse tries to send to the internet. Meta says Muse cannot see a user’s passwords or payment details, checks in before sensitive actions such as sending an email or making a purchase, and does not share conversations or VM data with its advertising systems. Users can also opt out of having their interactions train Meta’s models.

Those are Meta’s own descriptions of how Muse is built, not findings from an independent audit — a distinction worth keeping in view, especially after TSN reported that Muse share links could be discovered through public DNS records, according to security firm Claroc. The gap between a security architecture as designed and as it behaves in the wild is exactly where agent products get tested.

Why Japan, and why it matters

Japan is a deliberate choice for a first overseas step. It is a wealthy, smartphone-saturated market with high trust in established brands and a dense ecosystem of home-grown apps — the kind of place where an agent that can book a train, manage a budget app and buy a concert ticket could become genuinely sticky, if the local connectors land. It is also a market where privacy expectations and consumer-protection norms are high, which puts Meta’s “we can’t see your passwords” framing under real scrutiny rather than taking it on faith.

For Meta, the launch is a signal that Muse is no longer a US-only experiment. The company has pushed the product aggressively — reporting by the New York Times described Mark Zuckerberg pressing ahead with Muse despite internal safety concerns after a rival agent gained traction — and international expansion is the logical next phase of that push. The things to watch now are concrete: whether the Japanese connectors actually ship, what the subscription tiers cost locally, and whether an agent built and marketed in English holds up when it has to work in Japanese, across Japanese services, for Japanese users.