Décroche is a voice simulator for sales teams. Give it your company's website: it reads your offer and writes the calls your reps actually face, from a price request to an unhappy customer or a cold call. Every practice call comes with its client context: who the prospect is, their company, the CRM-style record you have in front of you, and three objectives. Then you rehearse the call out loud with an AI prospect. They have a private brief (budget, decision-maker, objections) and their own files: a calendar, support tickets, orders, contracts, emails, whatever fits their business. Ask about an incident and they check their records and quote them. Propose a meeting and they open their calendar and book it. Mention last week's call and they remember it. It's up to you to ask the right questions and find out what matters to them. When you hang up, an AI coach scores the call against your company's sales scorecard, reveals the brief with what you missed and the question that would have found it, and quotes your exact words to explain the feedback. Managers can track practice and scores across the team. Have a real meeting coming up? Give Claude the email thread and it creates a practice scenario in Décroche over MCP, with that client's real context. You take the call in Décroche and review the interactive debrief in Claude through an MCP App. Three Symfony AI agents write scenarios, play prospects with their own tools, and coach reps. The prospect's replies are streamed and voiced sentence by sentence with Kyutai Pocket TTS running locally. Décroche is built with Symfony 8.1 and PHP 8.5, runs with Docker Compose, and supports English and French. It works with open models on Hugging Face or any OpenAI-compatible API.