Sendblue Sendblue is an SMS marketing platform that allows businesses to send text messages to their customers for marketing, notifications, and customer support. It's used by businesses of all sizes looking to engage with their audience through SMS. Official docs: https://sendblue.co/docs/ Sendblue Overview - Contacts - Contact Lists - Messages - Campaigns - Automations - Short URLs - Billing Working with Sendblue This skill uses the Membrane CLI to interact with Sendblue. Membrane handles authentication and credentials refresh automatically — so you can focus on the integration logic rather…