AgentsKit
TypeScript toolkit for building AI agents: runtime, tools, memory, RAG and UI bindings on one swappable core
AgentsKit is an open-source JavaScript and TypeScript framework for building AI agents without assembling separate libraries for each layer. The core package is dependency-free and defines six contracts; runtime, adapters, tools, memory, RAG, observability and UI each plug into it and can be replaced without rewriting the rest.
It ships 22 npm packages covering a ReAct and planning runtime, 50 tool integrations plus MCP servers, 17 memory backends, model adapters spanning OpenAI, Anthropic, Mistral, DeepSeek, xAI and OpenRouter, and UI bindings for React, Vue, Svelte and terminal. A CLI scaffolds projects, runs agents against any provider and diagnoses setup.
MIT licensed with no hosted service or signup. Aimed at teams that expect to swap models, storage or interface as an agent evolves.
Pricing: Free
AgentsKit Alternatives
Explore 34 products in the Frameworks & Stacks category. View all AgentsKit alternatives.
Mastra
TypeScript-first AI framework for building agents, RAG pipelines, and workflows
vLLM
High-throughput LLM inference engine with PagedAttention for efficient GPU memory usage
Also listed in
Work on AgentsKit? Feature it at the top of Frameworks & Stacks.
Is your product missing?