WeChat public account customer service

Recently, a friend who works in self-media said that his WeChat official account has some fans and he wants to connect to the customer service function to interact with fans. Is there a customer service system that is free, easy to use and stable? Coincidentally, yesterday Kimi officially announced that it supports calling third-party tools and has settled in the button platform. Coincidentally, the conversation robot built by coze supports publishing to WeChat official accounts. Coincidentally, it is free and easy to use coze+Kimi to build AI customer service. Coze was developed by the Byte team, and Kimi was developed by the Dark Side of the Moon team. Both are leaders in the domestic AI industry, and their stability is guaranteed...