One Agent SDKProvider-Agnostic LLM Agents

Embed agents — Claude Code, Codex, Copilot, OpenAI, Anthropic, and more — directly into your TypeScript apps. One line to swap providers.

Provider Agnostic

Swap between Claude, Codex, Copilot, OpenAI, Anthropic, OpenRouter, and more with a single config change.

Unified AsyncGenerator-based streaming interface across all providers. Process text, tool calls, and handoffs as they happen.

Agents hand off to each other seamlessly. Define handoff targets and the SDK handles routing on any backend.

Define tools with Zod schemas for fully type-safe parameters and handlers. Works with Zod v4.

Validate agent responses against Zod schemas. Get typed objects instead of raw text.

Multi-turn conversation history with pluggable storage, and composable stream middleware for logging, filtering, and transforms.