A software interface designed using modular code patterns that allow developers to swap out underlying backend services, databases, or AI models without rewriting application code.

Dropped in sales calls to promise clients that they will never be locked into a single software vendor, masking basic modular programming as revolutionary agility.

• Basic Modular Hype: Treating standard, clean software design as an advanced proprietary feature.
• Agility Marketing: Promising seamless vendor swapping when changing providers still requires extensive integration work.
• House-Cleaning Reality Check: Like having a sink faucet that accepts two types of hose attachments and calling it a "flexible culinary fluid layer."

Cheers (1980s): Sam Malone (Ted Danson) manages his bar taps through a flexible supply setup, quickly swapping out empty kegs behind the scenes to keep drinks flowing without interrupting customer conversations.

Software code designed so you can easily switch backend service providers.

“Integrating a flexible API layer allows us to switch between Claude and GPT models instantly.”

“We built our system with a flexible connection layer so we can switch AI vendors if prices increase.”