With the rising demand for fast and reliable connectivity, there is a growing need for standardized frameworks to enable efficient and rapid deployment of broadband services. Today, disparate standards for fiber networks and mixed implementations result in delayed deliveries and high costs for service providers. The standardization of APIs in the fiber wholesale ecosystem would deliver interoperability, scalability and simplicity for service providers and network operators alike. To that end, this Catalyst aims to provide a unified API framework to support seamless integration between wholesale fiber providers and retail service providers, regardless of geographic location or technology stack. Building on Phase I, which developed a draft and basic implementation, Phase II of the Catalyst will deliver a working standard which is available on the TM Forum website and consists of an API profile, Open API definition, user documentation and CTK (compliance toolkit). The proposal, which will leverage the latest versions of the TM Forum APIs, will help enable zero-touch automation between access and service providers. It will also lay the foundations for further extension into service provider products to build a common framework for the broadband ecosystem. By standardizing these APIs, the industry can reduce complexities related to vendor compatibility, streamline onboarding processes and facilitate faster delivery of fiber-based services. Standardization will also reduce implementation costs, while still allowing individual vendors to customize for their own individual regional and commercial requirements. In future, the project could be extended to service providers offering products to end users, helping build an ecosystem based on common definitions that further simplify and reduce IT costs.