Keen IO, a company founded four years ago to provide high-speed custom analytics for developers, is going upscale with a new release of its platform targeted at the enterprise. The new enterprise-oriented Keen Pro product is designed to be white labeled and embedded in other commercial products.

In a crowded analytics market that sometimes seems jumbled and undifferentiated, Keen has a distinctive value proposition: It gathers event data from nearly any source and makes it available for developers to analyze or embed in applications. Keen handles all of the back-end operations so analytics can be embedded with the addition of a few lines of code. The company claims that its infrastructure and caching procedures deliver sub-second performance in most cases.

The San Francisco-based company, which Crunchbase estimates has raised nearly $18 million, is attacking an opportunity that the growth of real-time analytics is nudging along. As developers build applications that create real-time interactions, they need reporting tools that give them instant feedback. For example, an online retailer may seek instant updates on the impact of a price reduction or a wine merchant may want to give buyers up-to-the-minute information on warehouse inventory.

Developers can often build these capabilities themselves, but Keen’s service automates the process. The company “taps into a ton of sources,” that are available via published application program interfaces (APIs), said CEO Kyle Wild. “We’re a big part of the API economy.” Customers can also use Keen’s own APIs to create custom event feeds.

Keen’s back-end processing engine, which leverages the open-source Cassandra database engine for storage, Storm for stream processing and Kafka for event queuing, processes 3.5 trillion events per day. “The whole thing is built on custom fields,” Wild said. “That’s how we’re able to capture so many different types of data. We can fulfill whatever analytics needs the user has.” Keen recently open-sourced its analytics engine.

Keen Pro is functionally similar to the self-service product the company offers on a pay-as-you-go basis, but licensing is by annual subscription and Keen has built in additional security and privacy features. Pricing is on a custom-quote basis.