Merge and verify single api functionality

[matbmoser]

Introduction

There needs to be merged a pull request with the single API functionality

Acceptance Criteria

• [ ] Working on INT
• [x] Without typos in the PR, just functionality
• [x] PR to TX

[saudkhan116]

The single API feature is synced with current implementation, but cannot be tested as long as the EDCs run on INT environment.