LangChain
FreeFramework for building LLM-powered applications
About
Popular open-source framework for chaining LLM calls, building RAG systems, and creating AI agents.
LangChain
Free TierOpen-source LLM framework. LangSmith paid from pay-as-you-go.
Best for: coding & development
Playbook Use Cases
Try LangChain
Free TierOpen-source LLM framework. LangSmith paid from pay-as-you-go.
Direct link to official site
Pricing & Plans
| Feature | Free $0 |
|---|---|
| Basic access | |
| Core features | |
| Priority support | |
| Advanced features | |
| API access | |
| Team collaboration |
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Asia Score
Building custom AI applications with Asian language models
Pricing
Asia Features
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Ranking Position
Featured in 4 of 5 rankings
Related Playbooks
This tool is used in 4 playbooks.
Build an App with Cursor
Use Cursor's AI agent mode to build a full-stack web application from scratch. No prior coding experience needed.
AI for Customer Support
Build an AI-powered customer support system that handles 80%+ of tickets automatically. Using RAG pipelines, AI chatbots, and smart escalation. Cut support costs while improving response times and customer satisfaction.
AI Agent Building: Multi-Agent Architecture Patterns
Master multi-agent architectures for production AI systems. Learn LangChain orchestration, CrewAI agent teams, AutoGPT autonomous workflows, and human-in-the-loop patterns. Build agents that replace entire workflows โ not just single tasks.
How to Save $100/mo on AI Token Costs
Most solopreneurs overpay for AI tokens by 2-5x without realizing it. This playbook shows you how to slash your monthly AI spend from $150-200 down to $50 or less using prompt compression, cheaper model switching, batching, and caching โ all without sacrificing output quality.
Related Guides & Articles
LangChain vs CrewAI vs AutoGen vs OpenAI Agents SDK: Best AI Agent Framework for 2026
We pit LangChain, CrewAI, AutoGen (Microsoft), and OpenAI Agents SDK head-to-head. Compare architecture, ease of use, scalability, and real-world performance to find the best AI agent framework for your project.
Best Agentic AI Tools for Asian Enterprise Workflows (2026)
Agentic AI โ AI systems that plan, execute, and iterate autonomously โ is reshaping enterprise workflows across Asia. This comprehensive guide covers the top platforms, cost comparisons, regional regulatory considerations, and a practical 12-week implementation roadmap for Asian enterprises.
Agentic Workflows: How to Design AI Agents That Actually Do Your Job (Without Breaking Things)
Agentic workflows promise fully autonomous business processes, but reality is messy. Learn how to design AI agents with guardrails, human-in-the-loop checkpoints, and error recovery that actually work for real business operations.
Build Your First AI Agent in 2026: A Step-by-Step Guide for Asian Solopreneurs
You don't need a CS degree to build an AI agent in 2026. This practical guide walks through choosing the right platform, designing workflows, and deploying your first automation agent โ tested with Asian business tools, languages, and platforms.