LangChain vs Model Context Protocol
LangChain is listed under Agent frameworks, Model Context Protocol under Agent infra. Each name links to the product's own site.
| Category | Agent frameworks | Agent infra |
|---|---|---|
| Pricing | Open source | Open source |
| Public code | Yes | Yes |
| Tags | framework, python, javascript, orchestration | protocol, mcp, standard, tools |
| Website | langchain.com | modelcontextprotocol.io |
What LangChain does
Open source library for building applications on top of language models. It offers model wrappers, tool calling, retrievers and agent building blocks in Python and JavaScript.
What Model Context Protocol does
Open protocol introduced by Anthropic that standardizes how AI applications connect to tools and data sources. It has SDKs in several languages and a large set of community servers.
Other options
See all Agent frameworks, or alternatives to LangChain and Model Context Protocol.