Developed and delivered the Intercom Calls API module within the intercom/Intercom-OpenAPI repository, focusing on expanding call management capabilities for the Intercom platform. The work involved designing and implementing new API endpoints and schemas using YAML and OpenAPI Specification, enabling users to list calls, retrieve detailed information, access recordings, and obtain transcripts. The module also introduced search functionality by conversation IDs, returning transcripts when available to support analytics and improved data access. This feature laid the foundation for enhanced scalability and monitoring, streamlining agent workflows and enabling faster, more comprehensive access to call data for customer interaction analysis.