Glossary · Agents & harnesses

LangChain

A popular open-source framework for building LLM applications by chaining together prompts, models, tools, and memory components.

Related terms

• AI agent
• JSON mode
• LlamaIndex
• MCP server
• Model Context Protocol (MCP)
• ReAct pattern

Vynaris is an inference gateway that routes each request to the cheapest right-sized model and shows the receipt. Get an API key or read the docs.