Bedrock, Vertex, and AI Foundry are not spend firewalls
The big three cloud AI platforms govern model access, not agent spend. Their budgets stop at the cloud boundary. Here's the money-layer gap.
Teams standardize agents on AWS Bedrock, Google Vertex AI, or Azure AI Foundry — and assume the platform's budgets cover the risk. They don't. Those budgets stop at the cloud boundary.
The gap
The platform governs its own usage: model tokens, compute, managed services. Nothing it offers gates what your agents buy beyond it — a data vendor, a payment rail, a third-party API. That's where the documented runaways live.
The money layer
The control that covers every merchant sits outside the platform: a spend firewall on the money path, evaluating each proposed transaction before settlement. Platform budgets for the platform; the firewall for the money. They compose — see the comparisons →