Client library to connect to the LangSmith Observability and Evaluation Platform.
OpenAI integrations for LangChain.js
General-purpose agent with transport abstraction, state management, and attachment support
Coding agent CLI with read, bash, edit, write tools and session management
A home for your AI agents
Anthropic integrations for LangChain.js
Old abstractions from LangChain.js
The OpenRouter TypeScript SDK is a type-safe toolkit for building AI applications with access to 400+ language models through a unified API.
Mock infrastructure for AI application testing — LLM APIs, image generation, image editing, text-to-speech, transcription, audio translation, audio generation, video generation, embeddings, MCP tools, A2A agents, AG-UI event streams, vector databases, sea
OpenInference Core provides utilities shared by all OpenInference SDK packages.
Hud's Node SDK
OpenInference utilities for converting OpenTelemetry GenAI span attributes to OpenInference span attributes
Streaming colorization for Shiki, useful for highlighting LLM outputs and other text streams
Coding agent CLI with read, bash, edit, write tools and session management
Freeze the model, evolve the harness. Two measured applications: (1) SWE-bench Lite code-repair — 7.7% open-loop -> 58.3% via cheap->frontier tiering (official swebench Docker, verified), ~$0.01-$0.74/instance vs $1-20 for frontier agents; (2) Darwin Shie
Local observability dashboard for pi AI usage statistics
A client for the Phoenix API
Bitmap-frame context compression for vision-capable LLMs