The 4 most popular Merge.dev alternatives offer varying degrees of flexibility, customization options, and pricing models. Nango stands out for its comprehensive integrations platform with a large catalogue of pre-built integrations and the ability to extend and customize them on the platform. Apideck is another closed unified API that covers a wide range of categories but lacks customization options. Paragon positions itself as an embedded iPaaS solution with a low-code workflow builder, but its development experience is limited by its focus on simple automation workflows. Tray.io, an embedded iPAS offering by Tray.io, allows for bespoke integrations but requires developers to build data sync and bulk data handling outside of the platform.