Sinch CLI Lets Developers Build, Deploy, and Automate Voice and Messaging APIs from Terminal

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Sinch has released a command-line interface tool (@sinch/cli) that allows developers to manage its platform — including phone numbers, Voice API v2, messaging, and cloud functions — through a single terminal command. The CLI supports tasks such as renting phone numbers, routing inbound calls, scaffolding and deploying voice functions, and sending messages via the Conversation API. It also integrates with AI coding agents like Claude Code, Cursor, Kiro, and GitHub Copilot, which can run CLI commands autonomously using structured JSON output and exit codes. Authentication is handled via a single login that covers all Sinch products, with credentials stored securely in the operating system's native keychain. The tool requires Node.js 24 or newer and a Sinch account with a configured project and access keys.

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