How are developers adopting API-First design in 2025?

I've been exploring the growing shift toward API-First development — where teams design, document, and agree on APIs before writing backend or frontend code.

This approach helps streamline collaboration between developers, reduce integration issues, and improve scalability — but I’ve noticed it’s still not universally adopted.

I recently wrote an article about this trend and some practical lessons for modern teams: API-First Development: An Introduction for Modern Developers

I’d love to hear how others are approaching API-First workflows in 2025:

Are you designing APIs before implementation?

Which tools or standards (like OpenAPI, Postman, or Stoplight) are helping your teams?

What challenges or trade-offs have you faced?