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AI for JavaScript and TypeScript developers: from interfaces to agents

JavaScript and TypeScript are the languages in which the interfaces of AI products and many MCP servers are built. OpenAI and Anthropic publish official TypeScript SDKs, and prompt-to-app tools generate React and Next.js interfaces. The question for a JavaScript developer is not whether AI affects the work, but whether you meet it as a user or as a builder.

Why you are relevant and where the risk is

Your advantage

The JavaScript ecosystem has direct access to AI tooling: the Model Context Protocol has an official TypeScript SDK, the model vendors ship official TypeScript SDKs, and an evaluation tool such as promptfoo runs with npx. A TypeScript developer reaches all of these without changing language.

Where the risk is

The pressure comes from the interface side: prompt-to-app tools generate what you used to build by hand, pages, forms and integrations with a database or with payments. What they do not generate well is architecture, security, integration with existing systems and everything that belongs to operating a product with AI components. That is where your value moves.

What changes in your work with JavaScript and TypeScript

  1. The frontend becomes an interface for models

    Streamed answers, the intermediate states of an agent, showing tool calls and the sources of a RAG answer are now ordinary UI components. Whoever masters them builds AI products, not just pages.

  2. The Node backend orchestrates tools and context

    Tool use, structured outputs, retries, cost and rate limits are implemented in the same Node where you wrote REST APIs. The difference is that the answer is non-deterministic and has to be evaluated, not just validated.

  3. Realtime becomes a product surface

    A voice agent holds a persistent, bidirectional session over WebSockets or WebRTC, with interruptions and tool calls. Transport, latency and audio framing are web developer territory.

  4. Your editor is now an agent

    Cursor, Claude Code and MCP integrations change how you write and review code. What matters is giving them the right context, limiting their permissions and wiring verification into CI.

Each of these changes has at least one course in the track below. See the track

A Certificate of Completion for every course in the JavaScript and TypeScript track

When you have gone through all the lessons of a course and have an average of at least 70% on its quizzes, you issue from your account, after confirming the conditions, a Certificate of Completion with a unique number and a public verification link. It is not issued automatically and it comes at no extra cost, with a plan or with single-course access.

  • Verifiable by anyone. Every certificate has a QR code and a public verification page, with its unique code. A recruiter checks it without an account.
  • With figures, not just a name. The percentage of lessons completed, the average quiz score and the study time are written on the document.
  • Three tiers, by quiz average: Pass (70–79%), Merit (80–89%) and Distinction (90% and above), shown on the document.
  • Your name, your choice. You decide whether your name appears on the public verification page, and you can change that choice at any time.
Example of a Cursuri AI Certificate of Completion with sample data: the serial number and the issue date in the top-right corner, the holder’s name, the course, the tier awarded, the percentage of lessons, the average score, the study time, the course version, the issuer and the verification QR code
The real document, an A4 PDF, shown here with sample data: the name, the course and the serial number are placeholders, and the QR code in the image is decorative.

AI courses for JavaScript and TypeScript: 3 stages, 12 courses

In the order in which they matter. If you already have experience with model APIs, skip the foundations. For each course, the reason it matters to someone who works with JavaScript and TypeScript.

  1. Stage 1: Foundations: the mental model and the first integrations

    You understand what an LLM is, how to call it properly and what an AI product looks like beyond a chat box.

    1. Introduction to AI Engineering 28 lessons · ~25 h Beginner

      The map of the field, including the module on AI tools for developers and the one on LLM APIs, so you know what you are building and with what. The examples are mostly in Python, with some TypeScript.

      Key modules: Machine Learning Essentials · Large Language Models and Modern Architectures · Working with LLM APIs and Integrations · AI Tools for Developers

      Read the free preview Course details This course only: €99/month
    2. The Complete Prompt Engineering Masterclass 32 lessons · ~27 h Intermediate

      Prompt engineering for code and for agents: instructions that produce correct components and verifiable decisions.

      Key modules: Advanced Prompting Techniques · Multi-Modal Prompt Engineering · Prompt Engineering for AI Agents · Prompt Engineering for Code

      Read the free preview Course details This course only: €99/month
    3. Vibe Coding: From Prompt to Application with Lovable, v0, Bolt and Replit Agent 22 lessons · ~24 h Beginner

      A comparative tour of Lovable, v0, Bolt and Replit Agent; v0, for one, generates React and Next.js components. You see what these tools do well, where they fall short on security and production, and where your expertise fits next to them.

      Key modules: The Anatomy of Prompt-to-App: From Specification to Application · A Comparative Tour of the Tools: Lovable, v0, Bolt, Replit Agent · Essential Integrations: Database, Auth, Versioning, Payments and Deployment · From MVP to Something Usable: Production Limits

      Read the free preview Course details This course only: €99/month
  2. Stage 2: Systems: integration, MCP, agents and a full product

    You build the components that turn an interface into a product: tool orchestration, MCP servers, realtime sessions and the architecture of an AI SaaS.

    1. Advanced LLM Integration in Production Applications 24 lessons · ~26 h Advanced

      The streaming lesson implements the server side with Express in TypeScript and the client with fetch and ReadableStream. The rest, function calling, routing, error handling and productionization, is mostly in Python and is the logic you write in Node whatever the framework.

      Key modules: Streaming and Error Handling · Function Calling and Tool Use · Model Context Protocol (MCP) · Multi-Model Orchestration and Optimization

      Read the free preview Course details This course only: €99/month
    2. MCP (Model Context Protocol) — Building Servers and Integrations (Enterprise Edition) 22 lessons · ~25 h Advanced

      A whole module on building MCP servers with TypeScript, plus transport, authentication, testing and containerization. Your tools become available in any MCP client.

      Key modules: Building MCP Servers with Python · Building MCP Servers with TypeScript · Transport, Authentication and Configuration · Enterprise Patterns and Production Architectures

      Read the free preview Course details This course only: €99/month
    3. AI Agents: Architecting and Automating Autonomous Systems 30 lessons · ~26 h Advanced

      Agent architecture: memory, state, tools, design patterns for production and guardrails. The MCP module builds the same server in Python and in TypeScript; the other examples are in Python and the concepts carry over.

      Key modules: Memory, State and Advanced Reasoning · Frameworks and SDKs for AI Agents · Model Context Protocol (MCP) and Interoperability · Workflow Automation with AI

      Read the free preview Course details This course only: €99/month
    4. Build and Ship a Production AI SaaS: From Idea to Paying Users 30 lessons · ~25 h Advanced

      The default stack of the course is yours: Next.js, React and TypeScript with Postgres and pgvector. It takes you through streaming, multi-tenancy, Stripe billing, rate limiting and observability as architecture and decisions, not as code listings.

      Key modules: Choosing Your Stack: Frontend, Backend, and LLM APIs · Integrating the LLM: Streaming, Tools, and Cost Control · Vector Search and RAG for Your Product · Authentication and Multi-Tenancy

      Read the free preview Course details This course only: €99/month
    5. Voice AI and Realtime Multimodal Agents 30 lessons · ~25 h Advanced

      Realtime voice agents: speech-to-text, text-to-speech, the Realtime API and bidirectional streaming over WebSockets and WebRTC, transports a web developer already knows.

      Key modules: Speech-to-Text: Modern ASR · Text-to-Speech: Neural Voices · The Realtime API and Speech-Native Models · Building a Voice Agent: Orchestration

      Read the free preview Course details This course only: €99/month
  3. Stage 3: Tools and quality: agentic coding, evals, security

    You ship faster with coding agents and you stand behind quality with evaluation and security.

    1. Claude Code Mastery: Agentic Coding from the Terminal (multi-file, git, CI, MCP) 28 lessons · ~25 h Advanced

      Claude Code on large codebases, the full git workflow, subagents, hooks and GitHub Actions integration. It installs with npm and runs in the terminal next to your existing toolchain.

      Key modules: Multi-File and Large Codebases: Plan, Edit, Review and Context Management · The Full Git Workflow: Branches, Commits, Conflicts, Code Review and PRs · Headless Mode (claude -p) and Non-Interactive Automation · Subagents and Agent Teams: Orchestration, Delegation and Controlled Parallelization

      Read the free preview Course details This course only: €99/month
    2. Cursor as a Pro: AI-Native IDE, Composer and Multi-Agent 2026 (Enterprise Edition) 30 lessons · ~25 h Expert

      Composer, background agents, MCP in Cursor and team productivity, with rules and profiles shown for a project that has a React frontend in TypeScript.

      Key modules: Composer Mastery · Model Selection and Intelligent Routing · Background Agents and Cloud · Design Mode and Terminal-Driven Development

      Read the free preview Course details This course only: €99/month
    3. LLM Evaluation and Testing: Shipping Reliable AI 30 lessons · ~25 h Advanced

      promptfoo for comparing prompts and models from a YAML file, run with npx, next to DeepEval, Ragas and pytest. Quality tests go into the same pipeline as your unit tests.

      Key modules: Classic Metrics and Why They Fail on Open-Ended Text · LLM-as-a-Judge: Design, Bias and Calibration · Building Evaluation Datasets · The Evaluation Tooling Landscape

      Read the free preview Course details This course only: €99/month
    4. AI Security: Defending LLM Applications (OWASP LLM Top 10, Guardrails, Red-Teaming) 30 lessons · ~25 h Advanced

      Prompt injection, insecure output handling (model output rendered as raw HTML becomes cross-site scripting), guardrails and excessive agency: the risks specific to AI applications exposed in a browser.

      Key modules: Prompt Injection: The Defining Threat · Insecure Output Handling and Downstream Exploits · Guardrails: Input and Output Filtering · Securing RAG and Agents: Excessive Agency

      Read the free preview Course details This course only: €99/month
All 12 courses in this track fit in a subscription of 15 courses. €359 per month, VAT included; you pick the courses and can change them at every renewal. Or only the course you are interested in, €99 per month, from the “This course only” link on each row.

The capstone projects in the JavaScript and TypeScript track

The courses in the track that end with a capstone project. The list comes from the real modules of the courses, not from a brochure.

The AI ecosystem around JavaScript and TypeScript

What already exists, so that you do not start from zero. The courses in the track teach you what to build with it.

  • Official OpenAI and Anthropic TypeScript SDKs Official, typed libraries from both vendors, with streaming and tool use.
  • The TypeScript SDK for MCP An official SDK of the protocol: you build MCP servers and clients directly in TypeScript.
  • Claude Code and Cursor Coding agents that work on JavaScript and TypeScript projects; Claude Code can be installed with npm.
  • Next.js and React Model calls on the server, so keys are never exposed, and streamed responses for conversational interfaces.
  • WebSockets and WebRTC The two transports behind realtime voice agents.
  • promptfoo Prompt and model comparison driven by a YAML file and run with npx, in the same CI pipeline as your tests.

What you will be able to do at the end of the JavaScript and TypeScript track

  1. Build conversational interfaces with streaming, on Next.js or on any framework
  2. Write MCP servers in TypeScript, tested and containerized
  3. Design the architecture of an AI product: model calls on the server, multi-tenancy, billing and rate limiting
  4. Use Claude Code and Cursor at a professional level, with controlled permissions and verification in CI
  5. Put answer-quality evaluation in the CI pipeline, with promptfoo

These are the skills you practise in the courses of the track; results depend on the time you invest and on your previous experience.

Start the JavaScript and TypeScript track

What you get here that you do not get from a tutorial

Courses of about 25 hours, structured in modules

Code examples, architectures and case studies, and in some courses a capstone project at the end. Not summaries of documentation, but structured material that you go through in order, at your own pace.

AI Professor in every lesson

You ask in the context of the lesson, by typing or by voice, and get an explanation of the concept you are on. Every lesson has its quiz: about 355 questions per course on average. The professor is an AI system, not a human teacher, included in every plan with a fair-use limit.

Up to date with what the industry asks for

Agentic coding, MCP, RAG, agents, evals, LLM security, fine-tuning, AIOps, computer vision and Edge AI are whole courses in the catalog, not closing chapters.

See the material before you pay

A preview of the first lesson of every course can be read without an account. Then you choose a subscription by number of courses, from €99 a month for one course to €319 a month for 10 courses, VAT included; you pick the courses and can change them at every renewal. You can stop the renewal anytime from your account; access stays until the end of the period already paid for.

Pick the courses for JavaScript and TypeScript in a subscription of 3, 5 or 10 courses

You pick them, with the AI Professor included, and can change them at every renewal. The whole track fits in a subscription of 15 courses (€359 a month, VAT included); with the full catalog (€499) you have every course.

How many courses a month?

Pay for the tier, then pick the courses in your account. You can change them at every renewal.

Billing period
  1. 1 course One topic

    €99 a course

    €99a month €990a year, 12 months of access

  2. 3 courses First steps

    under €67 a course

    €199a month €1,990a year, 12 months of access

  3. 5 courses Your field

    under €52 a course

    €259a month €2,590a year, 12 months of access

  4. 10 courses Recommended A whole category For example, every AI Engineering course, or a mix of marketing and coding.

    under €32 a course

    €319a month €3,190a year, 12 months of access

  5. 15 courses Two fields

    under €24 a course

    €359a month €3,590a year, 12 months of access

  6. 25 courses A full track

    under €16 a course

    €399a month €3,990a year, 12 months of access

  7. Full catalog Nothing to pick, new courses included

    under €10 a course, across all 50

    €499a month €4,990a year, 12 months of access

Total prices, VAT included. Move up anytime and pay only the difference for the days left; move down at renewal. Renews automatically, you stop it anytime from your account; your progress and certificates stay. Digital content with immediate access: see the withdrawal terms.

A subscription by number of courses: 1, 3, 5, 10, 15 or 25 courses a month, or the full catalog. You pick them and can change them at every renewal. Compare all the subscriptions · The team library, priced per member · Give a month of access as a gift

From the blog, for developers

Do you work in another language too?

The same skills, seen from each ecosystem. The languages close to JavaScript and TypeScript are highlighted.

Questions about AI for JavaScript and TypeScript

Do the courses have examples in TypeScript?

Some do. The MCP course has a module dedicated to building servers in TypeScript, the agents course builds an MCP server in TypeScript next to the Python one, and the LLM integration course implements streaming with Express and, on the client, with fetch. The vibe coding course works with tools that generate JavaScript applications. The remaining examples are mostly in Python, and the concepts carry over to the official TypeScript SDKs.

I am a frontend developer. Does this make sense for me?

Yes. The interfaces of AI products, streaming, agent states, showing sources, are frontend work, and prompt-to-app tools generate the kind of components you used to write by hand. The vibe coding course shows their limits, and the integration, MCP and AI SaaS courses move you into the position of building the product, not just the interface.

Can I use Claude Code or Cursor on existing JavaScript projects?

Yes. The dedicated courses cover working on large codebases, the git workflow, subagents, hooks and CI integration, with the emphasis on least-privilege permissions.

Which subscription opens these courses?

All the courses recommended here are IT courses. You pick them in a subscription by number of courses: usually 3, 5 or 10 courses a month for one language and stack; there are also 15 and 25 courses, a single course and the full catalog. You pick the courses and can change them at every renewal. The subscription renews automatically, and you can stop the renewal anytime from your account. Every price, VAT included, is shown below and on the pricing page. Every course has a free preview of its first lesson, readable without an account.

A free preview of the first lesson, without an account

Start the JavaScript and TypeScript track today

12 courses, ~302 hours, all in a subscription of 15 courses: €359 per month, VAT included. You can change them at every renewal; the AI Professor is built into every lesson.

Secure payment through Stripe Immediate access after payment Stop the renewal anytime

ChatGPT, OpenAI, Claude, Anthropic, Gemini, Google, Microsoft 365 Copilot, Cursor, Midjourney and the other product and company names mentioned are trademarks or trade names of their respective owners. Cursuri-AI.ro is an independent training provider and is not affiliated with, sponsored by or endorsed by any of them.

15 courses: €359/month the whole JavaScript and TypeScript track · VAT included
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