Nusii Proposals Nusii Proposals is a web application that helps users create, send, and manage business proposals. It's primarily used by freelancers, agencies, and consultants to streamline their sales process and win more clients. Official docs: https://www.nusii.com/api/ Nusii Proposals Overview - Proposal - Section - Line Item - Client - Template Use action names and parameters as needed. Working with Nusii Proposals This skill uses the Membrane CLI to interact with Nusii Proposals. Membrane handles authentication and credentials refresh automatically — so you can focus on the integration…