MCP Kills REST API: The Last Year of Classical Integrations

By **Alexandr Balas* (CEO & Chief System Architect, dlab.md) | March 2026* I need to confess something. Three months ago, one of our Python scripts was connecting to our ERP with SSL verification disabled. verify=False, right there in the codebase. A script that managed published content on our production website. I discovered it on a Tuesday, during a routine code review I had been postponing for weeks. That script was one of six. Each had its own way of authenticating to Odoo. Each quietly did its job. Each was a small, silent liability. We deleted all six. Replaced them with a single MCP server. Nobody noticed — because everything just kept working. But better, and without the security debt. This is a story about that migration, about why the 957 applications in the average enterprise cannot keep talking to each other through hand-built point-to-point integrations forever, and about what comes next. Also: about when you should absolutely not follow our example. We Deleted 6 Scri