Kubling vs Ontop

Kubling gives AI agents and automation a bounded model of live IT and OT state, federated directly from source systems. It defines shared entities, relationships, source ownership, and valid actions so queries and mutations can cross databases, APIs, and infrastructure. Providers translate operations into each source’s native protocol while retaining credentials, source logic, and release cycles; Kubling handles federation, planning, and policy. The OpenAPI provider exposes API operations as relational entities and maps mutations to HTTP operations. Instances can use local providers, federate other Kubling instances, or do both, with no central instance required. Providers are independent services behind a public gRPC contract and can be written in any gRPC-supported language. The catalog lists Cassandra, Kubernetes, OpenAPI, Redis, and an in-memory provider. The provider protocol, Go SDK, and official providers are open source, but the engine is not. Quickstart requires Git, Docker Engine, and Docker Compose v2. Provider APIs are pre-1.0; exact versions are recommended.

Ontop has no write-up on Specifiction yet; its figures are above.