Microsoft has been all in on AI this year, and in the build versus buy equation, the company has been leaning heavily toward buying. This morning, the company announced its intent to acquire Xoxco, an Austin-based software developer with a focus on bot design, making it the fourth AI-related company Microsoft has purchased this year.

“Today, we are announcing we have signed an agreement to acquire Xoxco, a software product design and development studio known for its conversational AI and bot development capabilities,” Lili Cheng, corporate VP for conversational AI at Microsoft wrote in a blog post announcing the acquisition.

Xoxco, which was founded in 2009 — long before most of us were thinking about conversational bots — has raised $1.5 million. It began working on bots in 2013, and is credited with developing the first bot for Slack to help schedule meetings. The companies did not reveal the price, but it fits nicely with Microsoft’s overall acquisition strategy this year, and an announcement today involving a new bot building tool to help companies build conversational bots more easily.

When you call into a call center these days, or even interact on chat, chances are your initial interaction is with a conversational bot, rather than a human. Microsoft is trying to make it easier for developers without AI experience to tap into Microsoft’s expertise on the Azure platform (or by downloading the bot framework from its newly acquired GitHub).

“With this acquisition, we are continuing to realize our approach of democratizing AI development, conversation and dialog, and integrating conversational experiences where people communicate,” Cheng wrote.

The new Virtual Assistant Accelerator solution announced today also aligns with the Xoxco purchase. Eric Boyd, corporate VP for AI at Microsoft, says the Virtual Assistant Accelerator pulls together some AI tools such as speech-to-text, natural language processing and an action engine into a single place to simplify bot creation.

“It’s a tool that makes it much easier for you to go and create a virtual assistant. It orchestrates a number of components that we offer, but we didn’t make them easy to use [together]. And so it’s really simplifying the creation of a virtual assistant,” he explained.

Today’s acquisition comes on the heels of a number of AI-related acquisitions. The company bought Semantic Machines in May to give users a more life-like conversation with bots. It snagged Bonsai in June to help simplify AI development. And it grabbed Lobe in September, another tool for making it easier for developers to incorporate AI in their applications.