Ask HN: What framework/tool should I use for building agents?

#1

Post by realberkeaslan » Sat, Dec 13, 2025, 3:44 PM UTC

Hi all,

I recently started getting into agents and am looking into tools/frameworks to build my own agents. I am specifically looking for tools that allow me to "build from scratch", so preferably no n8n or some other agent builder platform. I stumbled upon Pydantic AI and it looks very promising. However, I was wondering the following: what is the current go-to standard in industry when it comes to tools/frameworks for building agents "from scratch"?

Best,

Berke

Re: Ask HN: What framework/tool should I use for building agents?

#2

Post by daviddever23box » Sat, Dec 13, 2025, 4:01 PM UTC

"From scratch" implies that you're building from language primitives on up, at the level you'd typically use for any maintainable project.

I'd focus on the underlying service provider APIs first, in the same manner as any other cloud resource.

Re: Ask HN: What framework/tool should I use for building agents?

#3

Post by rahmanyoo » Sat, Dec 13, 2025, 8:45 PM UTC

Not sure if there is an industry standard. Langchain is a decent place to start if starting from scratch. If you’re building to learn, i wouldn’t worry so much about standards, pick something that has decent community & docs.

Good luck!