Article
Founder Note
4
min read
James Dice

Where are the API-first companies?

May 11, 2021
“What’s incredible to me about (API-first companies) is that each represents something that a company would have had to build on its own previously, that it can now do by writing a few lines of code, and do better than they would have ever been able to in-house.”

Packy McCormick

Longtime listeners to the Nexus podcast know my favorite question: Why is the technology in buildings so far behind? I love asking it because I keep getting different, but insightful answers, which help us understand the obstacles we need to collectively overcome to make smarter buildings.

However, after asking it 25+ times, there’s still one answer I believe in but haven’t yet heard: Our industry is behind because we don’t yet have enough API-first companies.

Before I explain, a quick primer on APIs: Software applications are just a bunch of functions strung together to get things done. Application programming interfaces (APIs) wrap those functions in easy-to-use interfaces so you can work with them without being an expert or writing those functions from scratch.

Unfortunately, when we talk about APIs in the buildings world, we often talk about the API as the second option. Software as a service (SaaS) vendors want users to interact with their software through Graphical User Interfaces (GUIs). And they have this API, just in case you need to access your data in another way. In other words, the API is an afterthought.

But outside of our industry, we've seen an explosion of companies taking a totally different approach. They build their API (or APIs) as the primary option and their main strategy is to focus on one part of the stack and do it better than anyone else. They’re happy to be the infrastructure for someone else to solve the user’s problems most efficiently. They’re part of the solution, not THE solution.

When Shopify’s developers went to build merchant software that takes payments over the internet, they didn’t dare build it on their own. They used Stripe’s payments API. When Airbnb’s developers went to build the ability for hosts and guests to text each other, they used Twilio’s messaging API. When Uber’s developers went to build automated driver background checks, they used Checkr’s API.

The decision to be API-first is a first-order decision—all other decisions flow from there. For example, while Square makes hardware and software, that’s not what they sell. They sell their core differentiator: payments for small businesses. In fact, they literally give away the hardware and software for free.

That’s because they want you to use their API to accept payments and they don’t really care how you do it.

Compare that to a company in our industry like Density. Density’s core differentiator is that their sensors count humans anonymously and accurately. But that data stream is not what they sell. They sell the entire stack, from hardware to SaaS.

They want you to use their SaaS to “simplify space planning, manage operating expenses, and meet new workplace expectations with a single platform”, even though all of those things depend on more than just occupancy data. They’re not a part of the stack, they want to be the whole stack.

I’m not knocking Density—if every building in the world had accurate occupancy data I would be ecstatic. I’m simply observing that more often than not, our industry makes the API-second decision Density has made. And I think the implications of these collective decisions are a big drain on our progress because instead of everyone focusing on only what they do best, everyone is doing the same sh*t.

To explain further, next week I’ll dive deeper into one piece of the smart building stack that’s ripe for an API-first company to take over: data infrastructure.

Sign Up for Access or Log In to Continue Viewing

Sign Up for Access or Log In to Continue Viewing

“What’s incredible to me about (API-first companies) is that each represents something that a company would have had to build on its own previously, that it can now do by writing a few lines of code, and do better than they would have ever been able to in-house.”

Packy McCormick

Longtime listeners to the Nexus podcast know my favorite question: Why is the technology in buildings so far behind? I love asking it because I keep getting different, but insightful answers, which help us understand the obstacles we need to collectively overcome to make smarter buildings.

However, after asking it 25+ times, there’s still one answer I believe in but haven’t yet heard: Our industry is behind because we don’t yet have enough API-first companies.

Before I explain, a quick primer on APIs: Software applications are just a bunch of functions strung together to get things done. Application programming interfaces (APIs) wrap those functions in easy-to-use interfaces so you can work with them without being an expert or writing those functions from scratch.

Unfortunately, when we talk about APIs in the buildings world, we often talk about the API as the second option. Software as a service (SaaS) vendors want users to interact with their software through Graphical User Interfaces (GUIs). And they have this API, just in case you need to access your data in another way. In other words, the API is an afterthought.

But outside of our industry, we've seen an explosion of companies taking a totally different approach. They build their API (or APIs) as the primary option and their main strategy is to focus on one part of the stack and do it better than anyone else. They’re happy to be the infrastructure for someone else to solve the user’s problems most efficiently. They’re part of the solution, not THE solution.

When Shopify’s developers went to build merchant software that takes payments over the internet, they didn’t dare build it on their own. They used Stripe’s payments API. When Airbnb’s developers went to build the ability for hosts and guests to text each other, they used Twilio’s messaging API. When Uber’s developers went to build automated driver background checks, they used Checkr’s API.

The decision to be API-first is a first-order decision—all other decisions flow from there. For example, while Square makes hardware and software, that’s not what they sell. They sell their core differentiator: payments for small businesses. In fact, they literally give away the hardware and software for free.

That’s because they want you to use their API to accept payments and they don’t really care how you do it.

Compare that to a company in our industry like Density. Density’s core differentiator is that their sensors count humans anonymously and accurately. But that data stream is not what they sell. They sell the entire stack, from hardware to SaaS.

They want you to use their SaaS to “simplify space planning, manage operating expenses, and meet new workplace expectations with a single platform”, even though all of those things depend on more than just occupancy data. They’re not a part of the stack, they want to be the whole stack.

I’m not knocking Density—if every building in the world had accurate occupancy data I would be ecstatic. I’m simply observing that more often than not, our industry makes the API-second decision Density has made. And I think the implications of these collective decisions are a big drain on our progress because instead of everyone focusing on only what they do best, everyone is doing the same sh*t.

To explain further, next week I’ll dive deeper into one piece of the smart building stack that’s ripe for an API-first company to take over: data infrastructure.

⭐️ Pro Article

Sign Up for Access or Log In to View

⭐️ Pro Article

Sign Up for Access or Log In to View

Are you interested in joining us at NexusCon 2025? Register now so you don’t miss out!

Join Today

Are you a Nexus Pro member yet? Join now to get access to our community of 600+ members.

Join Today

Have you taken our Smart Building Strategist Course yet? Sign up to get access to our courses platform.

Enroll Now

Get the renowned Nexus Newsletter

Access the Nexus Community

Head over to Nexus Connect and see what’s new in the community. Don’t forget to check out the latest member-only events.

Go to Nexus Connect

Upgrade to Nexus Pro

Join Nexus Pro and get full access including invite-only member gatherings, access to the community chatroom Nexus Connect, networking opportunities, and deep dive essays.

Sign Up