STRING Get Protein Interactions

Alternative method to retrieve protein interactions from STRING (Search Tool for Retrieval of Interacting Genes/Proteins). Provides similar functionality to STRING_get_network but may return different response format. **Recommend using STRING_get_network for most analyses** - more commonly used and better documented. No API key required. Use for: alternative interaction retrieval if get_network has issues, specific data format requirements, compatibility with legacy code.