Envoy

These projects integrate OPA and Envoy or make using both together easier.

Styra DAS provides an out-of-the-box integration for writing Envoy authorization policies. See the tutorial here.

The opa-envoy-plugin project is the official integration for OPA and Envoy.

SPIRE can be used to integrate with Envoy and OPA. See a blog here to learn more.

External Authorization supports OPA and is documented here