While JSON dominates modern APIs, XML continues to power a significant portion of enterprise integrations, financial systems, telecom services, configuration pipelines, and SOAP-based APIs. Many developers assume XML is “solved,” but in practice, generating structured, well-formed XML repeatedly remains a surprisingly inefficient task.
In regulated industries such as banking, healthcare infrastructure, and enterprise SaaS platforms, XML is not optional — it is mandated by legacy systems, compliance frameworks, and long-standing integration contracts. This makes XML proficiency essential, even for teams primarily working in modern stacks.