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.

Packt
Skills you'll gain: LangChain, Prompt Engineering, LLM Application, LangGraph, Generative AI Agents, Agentic systems, Large Language Modeling, OpenAI, Data Processing, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Artificial Intelligence, AI Personalization, Responsible AI, Tool Calling, Text Mining, Query Languages, User Interface (UI), Application Development, Natural Language Processing
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, Exploratory Data Analysis, Data Wrangling, LangChain, Prompt Patterns, Large Language Modeling, Unsupervised Learning, PyTorch (Machine Learning Library), Generative AI, Restful API, Keras (Neural Network Library), Data Transformation, Supervised Learning, Flask (Web Framework), Data Analysis, Data Cleansing, Data Manipulation, Responsible AI, LLM Application, Data Import/Export
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Prompt Engineering, LLM Application, OpenAI, Large Language Modeling, Data Processing, Generative AI Agents, Text Mining, Application Development, Natural Language Processing, Jupyter
Intermediate · Course · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: LangGraph, LangChain, LLM Application, Generative AI Agents, OpenAI, Large Language Modeling, Prompt Engineering
Intermediate · Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Prompt Engineering, LangChain, Image Analysis, Responsible AI, OpenAI, LLM Application, Cloud Applications, Multimodal Prompts, Generative AI, Cloud API, Application Deployment, Prompt Engineering Tools, API Gateway, Generative AI Agents, Tool Calling, User Interface (UI), Data Ethics, Application Programming Interface (API), Open Source Technology, Software Engineering
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: MongoDB, NoSQL, Databases, PostgreSQL, Database Management Systems, Relational Databases, SQL, Database Design, Applied Machine Learning, Artificial Intelligence, Database Architecture and Administration, Database Management, LLM Application, Natural Language Processing, Apache Cassandra, Text Mining, Generative AI, Node.JS, Machine Learning, Data Science
Intermediate · Specialization · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: LLM Application, Large Language Modeling, ChatGPT, Prompt Engineering, Generative AI, System Monitoring, Application Security, Natural Language Processing, Semantic Web, Artificial Intelligence
Intermediate · Course · 1 - 3 Months

IBM
Skills you'll gain: Prompt Engineering, Software Development Life Cycle, Prompt Patterns, Large Language Modeling, Software Architecture, Computer Vision, LangChain, Responsive Web Design, Restful API, LLM Application, Generative AI, Flask (Web Framework), Responsible AI, IBM Cloud, Data Import/Export, Python Programming, Engineering Software, Workflow Management, Machine Learning, Data Science
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: LangChain, LLM Application, Large Language Modeling, Generative AI, Tool Calling, ChatGPT, Generative AI Agents, Responsible AI, OpenAI, Prompt Engineering, PyTorch (Machine Learning Library), Tensorflow, Semantic Web, Natural Language Processing, Artificial Intelligence, Application Development, Analytical Skills, Application Programming Interface (API), Supervised Learning, Computer Programming Tools
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Prompt Engineering, LangChain, LLM Application, Generative AI, Generative AI Agents, Application Development, Large Language Modeling, UI Components, Semantic Web, Data Storage Technologies, Databases, NoSQL, Data Storage, Flask (Web Framework), Query Languages, Artificial Intelligence, Database Architecture and Administration, Applied Machine Learning, Information Management, Jupyter
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Responsible AI, Containerization, Prompt Engineering, Scalability, Docker (Software), Application Deployment, Kubernetes, Generative AI Agents, Microservices, Program Development, Microsoft Azure, LangChain, Artificial Intelligence and Machine Learning (AI/ML), System Testing, Artificial Intelligence, Test Case, Distributed Computing, Serverless Computing, Natural Language Processing, Reinforcement Learning
Intermediate · Professional Certificate · 3 - 6 Months

University at Buffalo
Skills you'll gain: Blockchain, Test Driven Development (TDD), Cryptography, Application Development, Transaction Processing, Emerging Technologies, Application Design, Integrated Development Environments, Software Architecture, Network Protocols, Encryption, Web Applications, Program Development, Distributed Computing, Microsoft Azure, FinTech, Secure Coding, Cloud Computing Architecture, Development Environment, Web Development Tools
Intermediate · Specialization · 3 - 6 Months