What’s the hardest part about building your MCP-Server?

We did our first launch of MCP-Builder.ai (a platform to build hosted MCP-Servers) a few months ago and since then learned so much from talking to users, getting our first paying customers and also listening to the ones we didn’t close.

One thing became very clear from all those learnings:

Coding an MCP-Server is not the hardest part anymore. It’s what comes afterwards.

Hosting it, keeping it versioned, making sure it stays online, debugging, monitoring what actually happens and adding proper security. Especially in bigger companies and enterprise setups, a basic MCP-Server is often not enough. Security, authentication, observability and securely connecting internal systems quickly become just as important as the MCP-Server itself.

We put all those learnings into our platform and will have our second Product Hunt launch tomorrow with a completely new version of MCP-Builder.ai. 🚀 Super exited for your feedback.

What do you think is the hardest part about building and running an MCP-Server?