Nordic APIs Summit 2026 - October 12-14 Early Bird Registration Open!
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Session

From 2 Scopes to Global Identity

This is the story of how an identity replatform made us ready for agents. In 2019, PagerDuty’s identity lived inside a Rails monolith on an aging open source OAuth library. The API had exactly two scopes: read and write. We bucketed every piece of work we could tackle. Reworking authentication and authorization stood out. There was zero appetite for a project without an immediate business case.

In winter 2020, what the business wanted was a European region. I pitched a central global identity and applications system serving both regions: the U.S. and Europe. This would let customers anywhere use our entire application pool without partners reworking anything.

By the end of 2021, our entire integrations catalog was available to EU customers with zero partner rework.

Attendees will follow the journey from two scopes to 100 and learn a few of the extensions we made to control application security.

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