1. Add the plugin
You /plugin marketplace add julienmessagingme/messagingme-plugin then, separately, /plugin install messagingme@messagingme
Claude Claude Code installs the Messaging Me plugin: its tools and its instructions. Type the two commands one after the other: pasted together, Claude Code would only run one.
2. Authorize access
You /mcp, choose plugin:messagingme:messagingme, then Authenticate
Claude A page opens in your browser: continue with Google, then authorize. With no account yet, your workspace is created right then, with no form.
3. Start the setup
You /messagingme:demarrer
Claude calls get_setup_state
Claude Claude reads where your workspace stands and offers the next step: connect the number, build the AI agent, put the WhatsApp bubble on your site. An interrupted setup resumes where it stopped.