The `compare_schema` API endpoint allows users to easily compare schemas between Neon databases, including the Free Plan. This feature enables automation of database migrations in agentic systems, which are autonomous AI entities that dynamically determine their actions to achieve complex objectives. The API facilitates this workflow by enabling programmatic schema comparisons, allowing developers to automate the generation and application of migration scripts during deployment. The `compare_schema` API can be used to track schema discrepancies between Neon branches, reducing the risk of errors while supporting a smoother deployment process.