Meta's ads MCP server arrived in Databricks Marketplace with Unity Catalog access control and audit logging

The main MCP development in October 2026 was the arrival of Meta's ads MCP server in the Databricks Marketplace. Marketers could use natural language in Genie to evaluate campaign performance alongside governed business data. Administrators controlled access to the connection through Unity Catalog, and Unity Gateway governed tool calls and recorded audit logs [8]. A community post repeated the announcement [5].

The month also included a general availability milestone. A video newsround covering September said the Genie One Model Context Protocol had reached general availability. The same video covered OpenAI DevDay announcements and the rise of models that output typed probabilities instead of free text [4]. Community recaps of Genie One and Databricks changes from September appeared in the same period [1][2], along with a product manager demo of Genie Ontology [3]. The summaries available for these items did not give further MCP details.

On governance, a demo showed how to build and update a store operations agent with Agent Bricks and the Unity AI Gateway. It covered custom MCP servers, MLflow execution traces, security policies and budget controls [9]. MLflow 3.17.0 was released on October 7. It added fine-grained access control for runs and traces and linked evaluation metrics to managed datasets. Self-hosted SQL tracking servers needed a coordinated schema migration with all writers stopped [6].

Community members also built MCP servers of their own. The Lakenaut site described changes made after user feedback and became an MCP server that could be plugged into Claude [7].