Meta opens Muse AI agent to third-party developers via connector API

By Khal · · 1 min read

Editorial illustration: A rounded blue machine with an open door contains a glowing faceted core. Orange and teal cables connect two external blocks to its front panel, beside an empty socket.
AI-generated editorial illustration · AI-generated editorial illustration · Published Sep 20, 2026, 1:07 p.m. (57 minutes ago)

In brief

  • Meta launched Muse September 8, 2026; opened developer portal by September 18
  • Developers submit custom connectors for Gmail, Google Calendar, Spotify via muse.ai/platform
  • Muse uses individual authorization; users approve each connection separately
  • Power plan $20/month; Maximum plan $100/month with tiered features
  • Meta has not disclosed developer agreement terms, fees, or revenue sharing

The connector model

Muse connects to apps including Gmail, Google Calendar, and Spotify, acting on users' behalf across them. The platform runs on iOS, Android, and the web through muse.ai, with WhatsApp support already live and AI glasses on Meta's roadmap.

A key design choice shapes the experience: individual authorization. Users approve each connection separately rather than granting blanket access to everything at once. This granular permission model reduces friction while preserving user control.

Developer onboarding and pricing

Meta opened a developer submission portal at muse.ai/platform for third parties to build and submit custom connectors. Developers must meet Meta's functional, security, and legal requirements before launch, but significant details remain opaque.

Meta has not disclosed agreement terms, fees, revenue sharing arrangements, or review process timelines for developers—the operational specifics they'll need to plan around.

On the user side, Meta is pricing Muse with a Power plan at $20 per month and a Maximum plan at $100 per month, each offering different feature sets. Stripe is involved as a payment facilitation layer, pointing toward a future where Muse connectors handle transactions directly.

What's next

The speed of this move—from launch to open developer access in ten days—reflects Meta's playbook for AI agents. By distributing connector development to third parties, the company can scale functionality without building every integration internally. Whether developers see this as opportunity or unclear risk depends on what Meta discloses next.

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