LangChain courses can help you learn how to build applications that connect large language models with external data, tools, and workflows. You can build skills in prompt chaining, retrieval methods, agent design, and structuring multi-step tasks. Many courses introduce tools such as Python libraries, vector databases, and APIs that support creating, testing, and refining LangChain-powered AI applications.

Coursera
Skills you'll gain: AI Security, Test Driven Development (TDD), Vulnerability Assessments, Unit Testing, Code Coverage, Vulnerability Scanning, Continuous Integration, Dependency Analysis, Secure Coding, CI/CD, Software Testing, Test Automation, Integration Testing, Continuous Deployment, Software Versioning, Large Language Modeling
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Cryptography, Cybersecurity, Enterprise Application Management, Cyber Attacks, Emerging Technologies, Financial Trading, Digital Assets, Cyber Security Assessment, FinTech, Transaction Processing, Data Integrity
Beginner · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Application Deployment, Encryption, Web Applications, Business Process, Digital Assets, Transaction Processing, Automation, Data Integrity, Algorithms
Beginner · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Blockchain, Private Cloud, Go (Programming Language), Compliance Auditing, Frontend Integration, Microservices, Auditing, Application Programming Interface (API), Business Logic, Containerization, Security Testing, Debugging
Advanced · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LLM Application, LangChain, Large Language Modeling, Embeddings, Prompt Engineering, Query Languages, Vector Databases, Data Storage, Semantic Web, Unstructured Data, Graph Theory
Intermediate · Project · Less Than 2 Hours

Amazon Web Services
Skills you'll gain: Amazon Bedrock, Prompt Engineering, Responsible AI, Generative AI Agents, Retrieval-Augmented Generation, Generative AI, LangChain, AI Workflows, AI Orchestration, Artificial Intelligence and Machine Learning (AI/ML), Large Language Modeling, Applied Machine Learning, Transfer Learning, LLM Application, Embeddings, Amazon Web Services, Context Management, Model Deployment, Amazon S3, Model Evaluation
Intermediate · Professional Certificate · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, LLM Application, User Interface (UI), Embeddings, UI Components, Semantic Web, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Generative AI Agents, LangChain, AI Workflows, LLM Application, Agentic systems, Development Environment, Model Evaluation, OpenAI, Artificial Intelligence, Scalability, Applied Machine Learning, Performance Tuning, Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vector Databases, AI Personalization, Hugging Face, MongoDB, Embeddings, NoSQL, PostgreSQL, Relational Databases, Generative AI, SQL, Databases, LLM Application, Applied Machine Learning, Database Design, Database Management, Artificial Intelligence, Apache Cassandra, Text Mining, Machine Learning, Data Science
Intermediate · Specialization · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LangChain, AI Orchestration, Database Development, SQL, LLM Application, Query Languages, OpenAI API, Microsoft Azure, Tool Calling, OpenAI, Natural Language Processing
Beginner · Project · Less Than 2 Hours

Skills you'll gain: AI Workflows, AI Orchestration, Agentic Workflows, AI Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, LLM Application, Prompt Engineering, Model Deployment, Large Language Modeling, OpenAI API, Application Programming Interface (API), Application Deployment, Retrieval-Augmented Generation, LangGraph, OpenAI, Containerization, CI/CD, Continuous Deployment, Postman API Platform, Artificial Intelligence, Continuous Integration, Amazon Web Services, Authentications, Performance Analysis
Advanced · Course · 1 - 4 Weeks