Design pattern using proxy services to handle external communications. Like having diplomats who handle all international communications on behalf of your organization.
Microservices use ambassador containers to handle all external API calls with retry logic and rate limiting.
The Ambassador Pattern is a software design pattern, not a single managed cloud service. In practice it’s commonly implemented using sidecar proxies (e.g., Envoy) and/or API gateways/service meshes. Cloud providers offer building blocks (load balancers, API gateways, service mesh offerings), but there is no one-to-one native service named “Ambassador Pattern” in AWS, Azure, GCP, or OCI.