START WITH THE DECISION, THEN CHOOSE THE TECHNOLOGY.

Decision API fundamentals

A decision service gives an application a clear way to request a permitted next step. These guides explain the vocabulary behind that simple idea: evidence, prediction, policy, action, and review. The distinction matters whether your implementation uses a small rule table or a frontier model. Begin with the fundamentals, then follow the engineering guide to see how a stable interface becomes a production workflow. If you are comparing providers, the decision-company directory explains which organizations supply models, operational platforms, and supporting infrastructure. This collection is designed for product leaders and developers who want a useful foundation before choosing a vendor or defining an endpoint.