Question: Do you know of a chatbot that can integrate with my existing knowledge base and APIs without requiring training?

If you're looking for a chatbot that can tap into your existing knowledge base and APIs without training, PageBot could be a great option. This GPT-powered chatbot can scrape website content and knowledge bases and connect to existing REST APIs with meta tags. It also supports more than 130 languages and has a pay-as-you-go pricing plan with a free tier, so it's good for companies of all sizes.

Another option worth considering is Cloozo. Cloozo lets you build custom chatbots for websites or apps with no programming required, integrating with a knowledge base and even custom data sets. It has a range of pricing options and supports individual API keys for each chatbot, which could be helpful for small to medium-sized businesses and agencies that want to offer custom chatbot services.

For a more full-featured option, Botpress offers a powerful chatbot builder based on OpenAI's Large Language Models. It has more than 100 integrations and lets you import knowledge from custom sources, and it has a free tier and more advanced paid options. That makes it a good option for building professional AI agents that you can customize to your needs.

Last, Genai offers a service to build context-aware chatbots by combining information from sources like websites, PDFs and videos. It has features like automated 24/7 support, video navigation and API integration, so it's good for individuals, startups and businesses looking to improve their customer support and learning experiences.