Backstage MigratioBackstage Migratio
Case Study

Building a Unified Developer Platform with Backstage While Eliminating API Documentation Costs

Services We Delivered

Devops

Industry

Automotive

The Client

A US-based automotive enterprise operating a large-scale digital platform for used-car sales, connecting dealers and individual sellers with buyers nationwide.

The Challenge

As the platform evolved toward an event-driven architecture, the organization began to outgrow its existing tooling.

  • Stoplight supported REST APIs but lacked the capabilities to document and manage 800+ event-driven systems at scale.
  • Developers relied on multiple tools across documentation, infrastructure, and collaboration, leading to inefficiencies and constant context switching.
  • API documentation costs continued to grow without supporting evolving architectural needs, making the investment increasingly inefficient.
  • With 80+ microservices, inconsistent documentation practices created visibility gaps and increased onboarding complexity.
  • Any transition needed to ensure zero impact on developer productivity and ongoing development workflows.

The Solution

The organization adopted Backstage as a centralized developer platform to unify APIs, events, and developer workflows into a single interface.

A platform-led, automation-driven migration approach enabled the team to:

  • A centralized developer portal was introduced to bring APIs, events, services, and documentation into a single interface.
  • Existing OpenAPI specifications enabled a smooth transition of REST APIs with minimal changes required.
  • Event documentation was formalized across services, enabling better visibility into event-driven architecture.
  • AI-assisted workflows, including GitHub Copilot and custom scripts, accelerated documentation at scale.
  • A platform-led approach ensured minimal impact on developers while maintaining continuity during migration.

Results

The migration delivered measurable improvements across cost, scalability, and developer experience

  • The organization reduced API documentation expenses to zero by replacing Stoplight with Backstage.
  • 800+ event documents were structured and made discoverable across all microservices using AsyncAPI.
  • A single platform replaced fragmented tools, improving visibility and reducing context switching.
  • Developers continued working without disruption, ensuring a smooth and successful adoption.

Looking to Modernize Your Developer Platform?

If you're exploring ways to modernize your developer ecosystem or enable event-driven architecture at scale, we can help you design and implement the right solution.
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