How to create an AI agent
You can build an AI agent from scratch with code, or stand one up on a no-code platform in an afternoon. Here is what an agent actually needs, and the two routes to building one.
What every AI agent needs
Whatever route you take, an agent needs four things: a model to understand and generate language, knowledge to ground its answers, instructions that define its goal and its limits, and a way to act, whether that is answering, guiding, or handing off a result.
Skip any of these and you get a demo, not a dependable agent. The knowledge is what keeps it accurate; the instructions and limits are what keep it from inventing things.
Route one: build it with code
Developers can wire an agent together with a language-model API, a retrieval system for the knowledge, and orchestration code that manages the conversation and any tools the agent can use. Frameworks exist to speed this up.
This route gives you full control and fits teams with engineering time. It also means you own the plumbing: hosting, retrieval quality, guardrails, and maintenance.
Route two: use a no-code platform
A no-code platform handles the model, retrieval, and orchestration for you. You supply the knowledge and the rules, usually by pointing it at your existing content, and configure the agent's goal and voice from a dashboard.
This route trades some control for speed and reliability. For most teams whose goal is a working agent on their site, not a research project, it is the faster and safer path.
The steps, whichever route you take
The shape is the same: define the job the agent should do, give it the knowledge to do it, write the rules and limits, test it on real questions, and put it where people will use it. Then watch the conversations and refine.
The hardest part is rarely the technology. It is deciding precisely what the agent should do, and what it should refuse to do.
Skip to a working agent
pepline is the no-code route: point it at your site, it drafts itself from your content, you review the rules and voice, and it goes live behind one script tag. Try the one on our homepage.