The Farmtopia Data Exchange Module provides the core services for agricultural data sharing among stakeholders. It includes a cloud-deployable directory where data providers can register APIs and data consumers can discover and access datasets. The system requires providers to support OpenAPI documentation, OAuth 2.0 authentication, and optionally use RDFS-based data semantics. It is built with Python (FastAPI), PHP, and PostgreSQL, and is deployed using Docker containers. The module supports local development with integration testing scripts and is intended for reuse in small-scale or regional data-sharing contexts such as producer organizations or cooperative groups.