Google CASA Tier 2 completed for Siesta AI

We’ve completed Google CASA Tier 2 for Siesta AI’s Google integration. This gives security and procurement teams a third-party assessment they can reference when reviewing Google API access, and it makes the path from pilot to approved rollout smoother when Google data access is part of the scope.

Google CASA Tier 2: what it is (and why it matters)

CASA is Google’s security verification program for applications that access Google user data via Google APIs. It exists because OAuth scopes, access tokens, and API permissions can become a real operational risk if an app is built or operated without strong controls. Tier 2 requires an external assessment, not just a self-attestation. It’s designed for applications that warrant deeper scrutiny due to the sensitivity of access patterns and requested scopes.

The real-world impact in enterprise rollouts

In many organizations, the hardest part of adopting a new tool is not capability, it’s getting it through security review fast enough to keep momentum. CASA Tier 2 helps in three practical ways:

Fewer unknowns in vendor review: Security teams can anchor the conversation in a recognized assessment framework.
Less procurement back-and-forth: Review cycles shrink when evidence is consistent and available.
Cleaner approvals for Google-connected workflows: Teams can move sooner when Google access is a known, assessed surface area.

A non-obvious implication: predictable security approvals improve adoption. Business owners are more willing to build processes around the tool when they’re not worried the integration will be paused later by governance.

How this fits our broader security posture

Siesta AI is built for security-conscious organizations rolling out enterprise AI chat and AI agents for business across teams. That means focusing on controls that matter in practice: governance, access management, and auditability, plus a clear stance on data handling. CASA Tier 2 is one milestone in that direction, specifically for organizations where Google connectivity is part of the environment.

Rollout and next steps

Google CASA Tier 2 is now completed for Siesta AI. For most teams, there’s nothing to change in day-to-day usage. This milestone becomes relevant when you’re connecting Siesta AI to Google services and your organization requires third-party security assurance as part of vendor onboarding.

If your security or procurement team needs the assessment details for vendor review, schedule a demo and we’ll share the relevant materials through the appropriate channel.