Get the visual width of a string - the number of columns required to display it
Get the real length of a string - by correctly counting astral symbols and ignoring ansi escape codes
A faster than tiktoken tokenizer with first-class support for Vercel's AI SDK.
Use Claude, Anthropic's AI assistant, right from your terminal. Claude can understand your codebase, edit files, run terminal commands, and handle entire workflows for you.
SDK for building AI agents with Claude Code's capabilities. Programmatically interact with Claude to build autonomous agents that can understand codebases, edit files, and execute workflows.
Native binary for Claude Code on linux-x64
Native binary for Claude Code on win32-x64
Native binary for Claude Code on darwin-arm64
Reference counted pointers enable sharing of disposable items.
An ACP-compatible coding agent powered by the Claude Agent SDK (TypeScript)
The official TypeScript library for the Anthropic Vertex API
Telegram bridge bot to run local Codex/Claude CLIs
Native binary for Claude Code on linux-arm64
Lean output compaction for terminal-heavy agent workflows.
A simple list of CSS shorthand properties and which longhand properties they expand to
Skillflag producer CLI reference implementation.
Native CLI binary for @anthropic-ai/claude-agent-sdk on linux-x64
The official TypeScript library for the Anthropic API
Native binary for Claude Code on linux-x64-musl
AI SDK v6 provider for Claude via Claude Agent SDK (use Pro/Max subscription)
Help agents automatically write and test stories for your UI components
Use Claude Code without an Anthropics account and route it to another LLM provider
Native CLI binary for @anthropic-ai/claude-agent-sdk on linux-x64-musl
The AssemblyAI JavaScript SDK provides an easy-to-use interface for interacting with the AssemblyAI API, which supports async and real-time transcription, as well as the latest LeMUR models.