Discover the Alter Action Marketplace

Discover, Download, Share. The bands new Marketplace is the place bringing Alter to the next level.

AuthorAuthor

Samuel ROY & Olivier Legris
April 24, 2026

Hey everyone,

We launched the Alter Marketplace. Starting today, you can discover and install Alter Actions in one click.

🎶 Occams Laser - Descent ðŸŽ¶

What you can do right now

Browse & Install
Every Alter Action shows you exactly what it does, what tools it uses, and what skills it needs. Click download. It's on your machine.

Customize
Find your installed Actions in the Action Editor. Modify them. Add tools. Make them yours. Nothing is locked.

Publish
Built something useful? Publish it. We review submissions. Users see verified Actions and Actions under review. You decide what you trust.

Why we built this

The best use cases for Alter come from you. Not from us.

A marketplace is how we get out of your way and let the community show what's possible.

We're launching this week. It's open to everyone.

Start exploring. Start publishing.

See you next week.

Olivier & Samuel

Full Changelog

New Features & Enhancements

  • Alter Action Marketplace: Added the new marketplace to easily distribute and install Alter Actions, including the Skills, Tools and MCP servers they need to work.

  • Tool management: Reorganized the tools manager sidebar to make installed tools and marketplace content easier to browse.

  • Hub input UI: Merged the mode, action, and send controls into a more streamlined input button.

  • Context improvements: Sped up active app context retrieval.

  • Meeting prompts: Added a minimum meeting duration for mic monitor stop notifications.

Bug Fixes & Stability

  • Conversation recovery: Added a retry action for assistant errors in the conversation view.

  • Microphone and diarization stability: Prevented stale meeting session control, reduced repeated auto-start prompts after canceling, improved camera attribution handling, and blocked concurrent diarization runs.

  • App and settings behavior: Reopened settings correctly from the app menu, stopped polling when the application detail view disappears, kept automation permissions neutral on inconclusive checks, and fixed the tools window navigation sidebar.

Videos on Alter