For developers, software engineers and tech leads
Become a pro with AI.
Hand-drawn, hype-free lessons on Claude Code, MCP, the Claude API, prompt engineering, evals and local LLMs. Every one comes with code that runs.
From the blog
All posts- AI agents vs workflows: what is the difference?A workflow follows steps you wrote. An agent decides its own steps in a loop. How to choose between them, with patterns, trade-offs and a simple decision checklist.
- Best MCP servers for developers: what to install firstA practical shortlist of MCP servers developers use: GitHub, browser automation, docs lookup and filesystem access, plus how to vet any server before installing it.
- Claude API tutorial: your first call in TypeScriptMake your first Claude API call in TypeScript: install the SDK, send a message, add a system prompt, keep a conversation, stream the reply and read token usage.
Courses
All courses- AI Fluency for developers: the 4D frameworkThe habits behind getting good results from AI, in eight parts.
- Building with the Claude API: a hands-on courseFrom your first API call to agents, in fifteen parts.
- MCP in Depth: build MCP servers in TypeScriptBuild one real MCP server, RepoPilot, in nine parts.
- LLM evals and observability: test AI features properlyStop shipping prompts on vibes, in eight parts.
- Local LLMs, hands-on: run models on your own machineRun, measure and use models on your own hardware, in eight parts.
How every part works
- 1
A concept video
One idea, drawn live, in plain English. Under ten minutes.
- 2
A hands-on video
We build it together, from an empty folder, and run it.
- 3
The written lesson
Here on this site: the explanation and the code to copy.
About DevAIper
What is DevAIper?
DevAIper is a YouTube channel and website that teaches software engineers how to use AI properly: prompt engineering, the Claude API, MCP, evals and local LLMs.
Who is DevAIper for?
Developers, software engineers and tech leads, from junior to staff. If you can read a stack trace, you can follow along.
Is it free?
Yes. The videos, the written lessons and the code are free.
What language are the code examples in?
TypeScript, unless a lesson says otherwise. Every example is run before it is published.
New videos every Tuesday and Friday.
Subscribe and the next part shows up in your feed.