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Codefinity | Learn Claude by Building With Claude
Powered by Claude · inside every lesson

AI that works for your job.
Practiced inside Claude.

Skip the YouTube playlists. Codefinity drops Claude Haiku 4.5 directly into your workspace — you chat, build, and ship real work, guided by courses tailored to your role.

Trustpilot★★★★★4.6 / 5
3,000,000+ learners
4.55 / 5 avg rating
Try the Claude lab →

2-min quiz · no credit card · lab opens to free interactions before paywall

COURSE PREVIEW
See what you'll be able to do with Claude1-minute overview
Claude Haiku 4.5 in every lab
Build your first agent in 4 hours
MCP · Tool use · Long context · Vision
3,000,000+ learners
No API keys required
Rated 4.6 / 5 on Trustpilot
From first prompt to shipping agents
Anthropic-aligned curriculum
Claude Haiku 4.5 in every lab
Build your first agent in 4 hours
MCP · Tool use · Long context · Vision
3,000,000+ learners
No API keys required
Rated 4.6 / 5 on Trustpilot
From first prompt to shipping agents
Anthropic-aligned curriculum

Used by employees at

GoogleMicrosoftAmazonMetaTeslaSalesforceAccentureIntelSAPNike

Inside Codefinity

This isn't a video about Claude. It's Claude. Inside your lesson.

Every course comes with a live AI workspace. Claude reads your files, edits your code, and runs commands — right next to the lesson that explains why.

Codefinity lab with Claude annotated
1

Lesson sidebar

Real curriculum, real progress — not a chatbot demo

2

Claude tab

Haiku 4.5, with Read/Edit/Bash tools — same agentic pattern as Claude Code

3

Live workspace

All project assets land here. You can manage it and run it

4

One window.

Chat, terminal, files, lesson — no tab-hopping, no setup, no API keys

No setup

No API keys, no install, no “Anthropic account required”. It just runs.

Real edits, real runs

Claude can Read, Edit, and Bash inside your workspace. What you build, you keep.

🔒
Try free, pay later

First handful of interactions are free. Paywall only appears after you've seen it work.

Claude for your work

Not 'learn AI'. Actually do your job with Claude.

Five roles. Five workflows. Every one ships something real by the end of the module.

For developers

Ship features with Claude Code

Spec → diff → tests → PR, all guided. Build production agents — the way real teams ship with Claude.

Claude Code · MCP
📋

For product managers

Briefs, specs & user interview synthesis

Drop in 30 calls, get themed pain-points + a draft PRD with traceable quotes.

Long context · Projects
📣

For marketers

Campaigns that don't sound like AI

Trained on your brand voice. Generates landing pages, ads, and emails in your tone.

Style · Artifacts
📊

For analysts

SQL, sheets & insight memos

Drop a CSV → get clean SQL, a dashboard sketch, and a 1-page exec summary.

Code · Vision
🔬

For researchers

Read 200 pages in 20 minutes

Long-context summaries that cite their sources. No hallucinated references.

Sonnet 4.5 · 200k context

Claude in your day

Wherever you already work, Claude is already there.

Terminal, browser, IDE, or API — every surface has a course that goes from zero to shipped.

In your terminal

Claude Code (CLI)

The agent that reads your repo, writes diffs, runs tests, and ships PRs.

$ claude
› add dark mode to the settings page
→ edited 4 files, ran tests, opened PR #842
In your browser

claude.ai + Projects

Persistent context, Artifacts, and the Computer Use beta — your daily driver.

Project: Q2 launch
12 docs · 4 personas · brand voice
"Draft the launch email" → done in tone
In your IDE

Claude in VS Code & Cursor

Inline edits, multi-file refactors, and agentic tool use — without leaving your editor.

⌘+K refactor this hook to react-query
+ 38 lines · − 22 lines
1 file changed
In your code

Anthropic API + MCP

Build your own agents. Give them tools. Connect them to Slack, GitHub, your DB.

tools=[Read, Edit, Bash, mcp__slack]
agent loops until done
→ pings #releases when shipped
3M+
Learners

Active learners in 130+ countries learning with Codefinity.

CodefinityPlatform data
500+
Courses

Across AI, software engineering, and data — with Claude-specific tracks built in.

Catalogcodefinity.com/courses/catalog
4.6/5
Trustpilot

Rated by 1,000+ verified learners. Updated monthly.

Trustpilot1,000+ verified reviews

What you'll build

3 things you'll actually ship

Every track ends with one of these — built inside the lab, working on Monday.

Research agent

Drops 30 PDFs into a folder, gets back a ranked summary with cited quotes.

ClaudePython

Inbox triage agent

Classifies, drafts replies, snoozes — you approve. The capstone of Track 2.

ClaudeGmailMCP

Brand-voice content engine

Trained on your existing copy, ships landing pages + ads in your tone.

ClaudeProjects

Course program

Practical AI for Work · module by module

A hands-on, beginner-friendly course for business users. Understand the basics, talk to AI fluently, work with everyday tools, and ship a simple assistant you actually use.

Beginner level4 modules16 chapters6 assignmentsInteractive labsAI AssistantShareable certificate

What you'll learn

  • Understand the basics of AI and large language models.
  • Use AI tools for research, note-taking, and spreadsheet analysis.
  • Learn the AI vocabulary that matters in business contexts.
  • Build and tune simple AI assistants for your work tasks.
  • Write effective prompts to communicate with AI systems.
01

What is AI

Introduction to artificial intelligence, large language models, and essential AI vocabulary for business users.

  • LABSay Hello to Claude
  • How LLMs Actually Work
  • LABWhat's Actually Happening When AI Gets Info?
  • AI Vocab in 5 Minutes
02

Talking to AI

Learn how to communicate effectively with AI systems through prompt engineering and tone selection.

  • What Makes a Good Prompt?
  • LABYour First Structured Prompt
  • LABRefine the Prompt
  • LABChoose Your Tone
03

Working with Tools

Use Claude with research, note-taking, and spreadsheet workflows to get real tasks done.

  • AI Tools for Everyday Work
  • LABResearch with Claude
  • LABSummarize a Document
  • LABAnalyze a Spreadsheet
04

Building Your Assistant

Design, tune, and ship a simple Claude-powered assistant tailored to your work.

  • Designing Your First Assistant
  • LABBuild a Custom Claude Assistant
  • LABTune Behavior and Tone
  • LABShip Your Assistant
Start Now →

No credit card · free interactions in the lab before any paywall

Claude-relevant courses

Start with one. Keep the momentum.

Browse the catalog →

Why Codefinity

Built for people learning Claude between meetings

01

Claude is in every lesson.

No API key, no install, no setup. The Claude tab opens next to your terminal the moment a lab loads.

02

5–15 minute modules.

Each module is short focused material followed by a hands-on task. No hour-long lectures, no note-taking marathons.

03

Real code, real edits.

Claude can Read, Edit, and run Bash inside your workspace. What you build, you keep.

04

Updated as Claude ships.

Curriculum tracks Anthropic releases — Sonnet 4.5, MCP, Computer Use, prompt caching, the works.

87%

of learners ship a working agent within 2 weeks.

“First time an AI course showed me the API. Not just chat tricks.”

PM at fintech · Track 1 → Track 2

“I cancelled my $20/mo Claude.ai sub by week 3.”

Indie dev · Track 2 graduate

Learner stories

Real people. Real results. In their own words.

Verified Codefinity learners — their LinkedIn profiles are linked. No actors, no scripts.

Bill Wagner
Daniel Chinea
Steve Bruening
Stephanie Chan
Sherry Barnes-Fox
Kwizera Mugisha
6 verified learners below — 3,000,000+ like themIT professionals, analysts, project managers, developers, career switchers
Bill Wagner
Bill WagnerAccounts Payable Specialist★★★★★

I have really liked the browser-based lessons that allow me to code within the lesson. The RUN button allows me to test the code I write before submitting for a grade.

linkedin verified✓ verified
Daniel Chinea
Daniel ChineaIT Support Specialist★★★★★

I have gained a lot of practical and logical thinking skills, along with patience for myself and confidence in myself that I can learn programming. Years ago, I would have never thought that I could learn programming in any way, shape or form, and I was able to obtain these certifications and skills with Codefinity.

linkedin verified✓ verified
Steve Bruening
Steve BrueningTechnology Project Manager★★★★★

The learning was progressive and made it easy to follow along and make progress. I could feel my skills increasing and building on each other as the course went along.

linkedin verified✓ verified
Stephanie Chan

As I went through the first course of the Python track, I liked the way the course was lay out (in easy and digestible modules) with little exercises at the end of each concept.

Stephanie Chan
Project Manager
Sherry Barnes-Fox

My first course was 4 hours, I did it in a few days, "nugget-style". The instructions are very clear and easy to understand. There is even a hint to help you get the answer. I love the learning style that is used, it engages me.

Sherry Barnes-Fox
Senior Business Analyst
Kwizera Mugisha

The teaching methodology at Codefinity is excellent, and I particularly appreciate how it has prepared me to handle real-world coding problems. Currently, I am delving into Node.js and eagerly anticipate building full-stack projects that integrate all the knowledge I have gained.

Kwizera Mugisha
Web Developer

From the blog

Read before you build

Practical guides from people who built the workflows, not theorists who described them.

2-minute quiz

Which Claude skills will
move your work forward?

Answer 8 questions. Get a personalized path through Foundations → Build → Apply — with the Claude lab waiting on the other side.

Skip the quiz, open the lab

2 minutes · no credit card · free interactions in the lab before any paywall · 3,000,000+ learners started exactly here

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