I Built an AI Agent That Finds the Cheapest GPU Prices With Browser Automation
A practical build showing an AI agent using browser automation to research and compare GPU prices.
03 / AI SYSTEMS
AI systems I've built.
Agents that use your tools, AI wired into the systems you already run, full-stack apps with AI built in, and backends agents can talk to. All built end to end by me.
LIVE DEMOS
Watch them work, or press a key and try.
Fig 1Agent robot
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agent ready
AI integrations & agents
I turn the systems you already have, like your CRM, database, and internal APIs, into tools AI agents can use, with your approval where it matters.
Fig 2Agent console
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idle
Agents with approval
Search, read, draft, then it waits for you. Nothing goes out without a human sign-off, and every run is traced and costed.
Fig 3Sync hub
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0 of 3 sources
Full-stack apps & data
You tell me how you work. I connect your tools into one app and one source of truth: frontend, backend, and data.
HOW THEY'RE BUILT
Three architectures I build most.
Your existing systems stay as they are. I build the tool layer that lets AI agents use them safely.
WHAT I'VE BUILT
Agents, integrations, and apps.
01 / AGENTS THAT DO REAL WORKWatch a build ↗02 / YOUR SYSTEMS, USABLE BY AIHow I build them ↗03 / FROM PLAIN WORDS TO SOFTWAREWhat I build ↗
AI agent workflows
Tool-using agents for browser automation, research, price monitoring, sentiment analysis, and multi-step data workflows, with checkpoints where a human signs off.
LLMs · Tool calling · Browser automation · PythonAI integrations & MCP tools
Tool layers that put CRMs, databases, internal APIs, and documents in front of AI agents safely: scoped permissions, validated schemas, and an audit log of every call.
MCP · REST/GraphQL · Auth · Audit loggingFull-stack apps with AI built in
Internal tools, dashboards, and customer apps built end to end, with AI where it actually helps: summaries, extraction, assistants, and automation.
React · TypeScript · Python · PostgreSQLBUILD WITH ME
Watch the systems come together.
Building an AI Stock Sentiment Agent That Scrapes The Internet Without Getting Blocked
A complete AI agent workflow for gathering web data and analyzing stock sentiment.
WRITING
What I've learned building these.
SAY HI
Got something you want to build?
Send me a message and tell me about it. It's just me on the other end, from the first chat to everything we build after that.
Send me a message ↗nicolainielsen@nicolai-nielsen.com