Guide to Google CASA Assessment (Gmail API Review)

Planning to use Gmail API restricted scopes and Google has asked you to complete a CASA (Cloud Application Security Assessment)?

I've gone through the process and can help you understand what's required before you spend thousands of dollars on an assessment.

In this 1:1 session, we'll cover:

• What Google CASA is and when it's required
• Understanding Restricted vs Sensitive Gmail scopes
• Whether your app actually needs CASA
• How to prepare your application before contacting an assessor
• Required security controls and documentation
• Common reasons applications fail or get delayed
• Choosing an approved CASA assessor
• Estimated costs and timelines
• Best practices to reduce back-and-forth during the assessment
• Q&A based on your application architecture

Ideal for

• Indie developers
• Startup founders
• SaaS builders
• Gmail API developers
• AI email applications

Duration: 45–60 minutes

What you'll get

• A personalized CASA preparation checklist
• Architecture recommendations
• Documentation checklist
• Clear next steps before engaging a CASA assessor