Helpers for context windows, usage normalization, compaction, and cost estimation.

PostHog Node.js AI integrations

High-performance vector database with HNSW indexing - 50k+ inserts/sec, built in Rust for AI/ML similarity search and semantic search applications

Nest - modern, fast, powerful node.js web framework (@core)

Nest - modern, fast, powerful node.js web framework (@common)

Fast and accurate natural language detection. Detector written in Javascript. Efficient language detector, Nito-ELD, ELD.

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

Nest - modern, fast, powerful node.js web framework (@platform-express)

Token efficient IDs for AI agents. UUID alternative for the agentic era

AWS SDK for JavaScript Rds Client for Node.js, Browser and React Native

Nest - modern, fast, powerful node.js web framework (@testing)

AWS SDK for JavaScript Cost And Usage Report Service Client for Node.js, Browser and React Native

Miscellaneous indices for graphology.

A lightweight registry of LLM model information, like name and context sizes, for building AI-powered apps.

Node addon for string extraction for msgpackr

DeepSeek Harness 会话费用统计插件:本会话成本、当日费用、历史记录与官方价格同步,支持多厂商多模型价格计费(内置 90+ 模型价格目录与自动匹配)、主流 Coding Plan 订阅额度查询与显示(11 家,含小米 MiMo Token Plan 控制台 Cookie 查询、SCNet Token Plan 本地 Credits 计量与火山方舟 Volcano Ark Coding Plan AK/SK 签名查询)、自定义 Provider 余额查询(可配任意 HTTP 端点)与余额进度条

A shim for the setImmediate efficient script yielding API

A fast and efficient leaky bucket implementation

Fastest way for creating null-prototype objects in JavaScript

A small, fast chart for time series, lines, areas, ohlc & bars