Meta has opened its Muse agent platform to outside developers, letting them build “connectors” that plug their own products into the assistant. Mark Zuckerberg announced the move on X, framing the split plainly: developers supply the API, and Muse supplies the agent, the browser and the context of what a user actually wants. According to Zuckerberg’s post, the new connectors went live the day he announced them.

Meta’s Muse Connector Platform page lays out a three-step process for developers: describe the product and how people will use it, submit for a review covering functional, security and legal requirements plus end-to-end testing, then appear in a directory where Meta’s own editors can also pick connectors for featured placement. Meta says it has partnered with Stripe to handle payments through Link.

The company did not disclose partner counts, pricing or revenue-share terms. Muse itself runs on an isolated “Secure VM,” with a separate Sentinel agent required to approve any data leaving the system, a security model Meta described earlier in the same announcement thread.

Meta, via Mark Zuckerberg’s post on X and the company’s Muse Connector Platform page (muse.ai/platform).