WA MCP Server connects AI assistants like Claude with WhatsApp Business API. Built on Cloudflare Workers with 43 tools across 10 modules. Send any message type, manage templates, receive incoming messages via webhooks, set up AI auto-reply with 5 providers (OpenAI, Claude, Gemini, DeepSeek, Groq), and protect against spam with built-in allowlists and rate limits. Free tier available with 7 tools. Pro and Enterprise plans unlock all 43 tools including analytics, WhatsApp Flows, and audit logs.