API Overview

Get familiar with Hashbrown's hooks and APIs.

Choosing a Hook

Choose the right hook for the task.

Multi-turn chat	Single-turn input	Structured output (schema)	Tool calling	Generate UI components
✅	❌	❌	✅	❌
✅	❌	✅	✅	❌
❌	✅	❌	✅	❌
❌	✅	✅	✅	❌
✅	❌	✅	✅	✅

We love Vercel's AI SDK.

We also believe that Hashbrown needs to exist. This is because we want to drastically change the landscape of the web through generative UI.

If you have some familiarity with the AI SDK, we hope this quick comparison will be helpful.

Focus	Hashbrown	Vercel AI SDK
Vision	Generative UI: models can assemble your actual components.	General AI toolkit: text/JSON outputs with ready-made UI.
Frameworks	React and Angular first-class.	React/Next.js first-class; also Vue/Svelte.
Tools	Client-side tool calling + safe WASM sandbox for AI-authored code.	Server-side tool calling.
Streaming & DX	Binary-normalized streams + Redux DevTools for debugging.	SSE streams with polished hooks; strong Next.js integration.
UI Approach	AI renders real app components you whitelist.	Developers interpret outputs; AI Elements speeds up chat UI.

Multi-turn chat	Single-turn input	Structured output (schema)	Tool calling	Generate UI components
✅	❌	❌	✅	❌
✅	❌	✅	✅	❌
❌	✅	❌	✅	❌
❌	✅	✅	✅	❌
✅	❌	✅	✅	✅

Multi-turn chat	Single-turn input	Structured output (schema)	Tool calling	Generate UI components
✅	❌	❌	✅	❌
✅	❌	✅	✅	❌
❌	✅	❌	✅	❌
❌	✅	✅	✅	❌
✅	❌	✅	✅	✅

Multi-turn chat	Single-turn input	Structured output (schema)	Tool calling	Generate UI components
✅	❌	❌	✅	❌
✅	❌	✅	✅	❌
❌	✅	❌	✅	❌
❌	✅	✅	✅	❌
✅	❌	✅	✅	✅