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API Terms of Service updates

We're making clarifications to the API Terms of Service that will take effect immediately for new apps and on June 30, 2025 for existing apps. Please read the terms in full, but below is a summary of what’s changing:

  • Commercial Distribution: The updated terms confirm that the Slack Marketplace is the only appropriate channel for commercially distributing apps built with Slack APIs, whether those apps are unlisted (published outside of the Marketplace) or templatized one-off "custom" apps.
  • Data Usage Restrictions: We're reinforcing safeguards around how data accessed via Slack APIs can be stored, used, and shared.
  • API-Specific Terms: We're providing clearer guidance on how to use certain APIs, such as the Discovery API and the Data Access API, responsibly.

These updates strengthen and clarify existing Slack commitments to customers and are part of our ongoing effort to protect customer data, strengthen platform security, and ensure continued trust in the Slack ecosystem.