| https://id.registrystack.org/schemas/breg/authoring/registry-module.v1alpha1.schema.json | Base Registry Engine authored module | active |
| https://id.registrystack.org/schemas/breg/authoring/registry-project.v1alpha1.schema.json | Base Registry Engine authored project | active |
| https://id.registrystack.org/schemas/breg/runtime/runtime.v1alpha1.schema.json | Base Registry Engine runtime configuration | active |
| https://id.registrystack.org/schemas/casework/runtime/runtime.v1alpha1.schema.json | Registry Casework runtime configuration | active |
| https://id.registrystack.org/schemas/identifiers/catalog.v1.schema.json | Registry Stack identifier catalog v1 | active |
| https://id.registrystack.org/schemas/messaging/runtime/runtime.v1alpha1.schema.json | Registry Messaging runtime configuration | active |
| https://id.registrystack.org/schemas/registry-record/v1 | Registry Record v1 base response | active |
| https://id.registrystack.org/schemas/registry-relay/aggregate-result/v1.json | Registry Relay AggregateResult v1 schema | deprecated |
| https://id.registrystack.org/schemas/registry-relay/audit-event/v2alpha1 | Registry Relay value-free audit event | deprecated |
| https://id.registrystack.org/schemas/registry-relay/audit-event/v2alpha2 | Registry Relay value-free audit line | deprecated |
| https://id.registrystack.org/schemas/registry-relay/authoring/registry.v2alpha1.schema.json | Relay V2 governed Registry contract | deprecated |
| https://id.registrystack.org/schemas/registry-relay/authoring/runtime.v2alpha1.schema.json | Relay V2 deployment binding | deprecated |
| https://id.registrystack.org/schemas/registry-relay/entity-record/v1.json | Registry Relay EntityRecord v1 schema | deprecated |
| https://id.registrystack.org/schemas/scheduling/runtime/runtime.v1alpha1.schema.json | Registry Scheduling runtime configuration | active |