Slack App Directory (Slack Marketplace)

Free route directory

Researched from public pages — no submission was run · sources read 2026-09-25. Rules change — recheck the platform's own pages before submitting.

Requirements

A real Slack app built at api.slack.com/apps
For any distribution beyond your own workspace: an OAuth 2.0 install flow that issues tokens per workspace/user
All external endpoints must support SSL: OAuth redirect URLs, request URLs for interactions/actions/slash commands, options-load URLs, Events API URLs
Apps listed in the Slack Marketplace must pass review against Slack's app guidelines and requirements
Only request the scopes the app actually needs — admins screen requested permissions

Slack account and a workspace to build in
A deployed HTTPS app backend able to handle OAuth redirects, Events API, and interactivity
Onboarding flow for new workspaces (reviewed for quality)
Listing assets for the Marketplace page (name, descriptions, icon, screenshots) once approved for listing
Enterprise-org awareness if you want large-workspace installs

Create the app at api.slack.com/apps and install it to your associated workspace
Implement OAuth 2.0 install flow and ensure all request URLs are HTTPS
In the app dashboard, complete the checklist under 'Manage Distribution' > 'Share Your App with Other Workspaces' and click 'Activate Public Distribution'
Option A (unlisted): share the install URL/Add to Slack button — no Slack review, but not publicly listed
Option B (listed): submit to the Slack Marketplace from the app dashboard; Slack reviews against the Marketplace guidelines
After approval, the app's listing page is created in the Slack Marketplace and supports direct installs

There are two distinct end-states — 'public distribution enabled' is NOT the same as a Marketplace listing; only the latter is publicly browsable
Deactivating distribution removes the app from every workspace except the original
Once Marketplace-listed you can't simply deactivate public distribution — you must discontinue the listing
Apps using broad scopes get auto-uninstalled when the installing user leaves the workspace or becomes a guest
Some workspaces restrict installs to admins or to Marketplace-listed apps only — unlisted distribution won't reach them

The app has a public listing page in the Slack Marketplace (slack.com/marketplace) that any Slack user can find and install from

Current Marketplace review turnaround time
Whether Slack charges any fee for Marketplace listing (none was stated on the fetched pages — historically free)
Whether the listing's website link is dofollow