Packages

Human-readable number, date, time, and file size formatting for Python — converts machine values to natural language. humanize features: naturaltime() for 'an hour ago' / 'in 3 minutes', naturalday() for 'yesterday' / 'today', naturaldate() for 'Jan 15', intcomma() for '1,234,567', intword() for '1.2 million', intpluralizer for 'N item(s)', ordinal() for '1st'/'2nd', filesize() / naturalsize() for '1.2 GB', scientific() for '1.23 × 10⁴', fraction(), ap_number(), and i18n locale support for dozens of languages.

Universal JavaScript library for JSON Object Signing and Encryption (JOSE) — JWT, JWS, JWE, JWK, JWKS. Works in Node.js, browsers, Deno, Cloudflare Workers, and Vercel Edge Functions using the native Web Crypto API. Unlike jsonwebtoken which uses Node.js crypto, jose uses Web Crypto and runs anywhere. Supports JWKS (JSON Web Key Sets) with remote key fetching and automatic rotation.

Auth0-maintained Node.js library for signing and verifying JSON Web Tokens (JWT). Supports HS256, RS256, ES256, and other algorithms. Used for creating stateless auth tokens, API authentication, and service-to-service auth in Node.js applications. The de facto standard for JWT operations in the Node.js ecosystem.

A marketplace of MCP servers and Claude Code skills for life sciences research, including PubMed search, BioRender illustrations, Synapse research data, Wiley scholar access, 10x Genomics analysis, single-cell RNA QC, Nextflow pipelines, and scVI deep learning tools.

Ultra-fast Python serialization and validation library written in C. Provides Struct (immutable data classes), JSON and MessagePack codecs with 2-10x faster encoding/decoding than Pydantic or marshmallow. Validates data types using Python type hints at decode time. Zero-copy decoding where possible. Designed for high-throughput API servers and data pipelines.

URL-safe slug generation from Unicode strings — converts any text to URL-friendly lowercase ASCII strings. python-slugify features: slugify() function, Unicode transliteration (é→e, ü→u, 中文→zhong-wen), max_length for truncation, separator parameter (default '-'), allow_unicode=True for Unicode-preserving slugs, lowercase=False to preserve case, stopwords list to remove common words, word_boundary for clean truncation at word boundaries, regex_pattern for custom character stripping, replacements for custom character mapping, and slugify_unicode() alternative. Handles Arabic, Chinese, Japanese, Cyrillic and 50+ languages.

Compile-time SQL to Go code generator. Write SQL queries in .sql files, run sqlc generate, and get type-safe Go functions and struct types. Eliminates reflection-based ORM overhead while providing better type safety than raw database/sql. Supports PostgreSQL, MySQL, and SQLite. Alternative to GORM for teams that prefer writing SQL directly.

Rust procedural macro library for adding useful derive macros to enum types. Provides #[derive(Display, EnumString, EnumIter, EnumCount, EnumVariantNames, EnumMessage, IntoStaticStr, AsRefStr, EnumIs)] and more. Makes Rust enums easy to convert to/from strings, iterate over variants, count variants, and attach messages. Particularly useful for configuration systems, CLI argument parsing, and domain type modeling.

Pretty-print tabular data in Python — formats lists of lists, dicts, and named tuples as ASCII tables in dozens of formats. tabulate features: tabulate() function accepting list-of-lists, list-of-dicts, dict-of-lists, numpy arrays, pandas DataFrames, headers= for column names, tablefmt for output format (plain, simple, grid, pipe, orgtbl, rst, mediawiki, html, latex, tsv, github, rounded_outline), floatfmt for number formatting, intfmt, stralign for text alignment, numalign for number alignment, showindex for row numbers, and colalign for per-column alignment.

Utilities for working with async streams (futures::Stream) in Tokio. Provides StreamExt trait for async-iterator-like operations (map, filter, take, collect, throttle, timeout), stream adapters (wrappers for channels, intervals, timeouts), and conversion utilities. The async equivalent of Rust's Iterator trait for Tokio-based applications.

MCP server for Atlassian Data Center products (Jira, Confluence, Bitbucket Data Center) — the self-hosted enterprise edition. Enables AI agents to interact with self-hosted Atlassian instances for issue management, code reviews, documentation, and project tracking without relying on Atlassian Cloud.

MCP server for Microsoft AutoGen enabling AI agents to create and manage AutoGen multi-agent collaborative workflows. Allows AI assistants to orchestrate AutoGen agents that collaborate and solve problems through natural language — creating meta-agent systems where one agent (via MCP) manages other AutoGen agents.

Fast, flexible jQuery-like HTML/XML parser for Node.js. Implements a subset of jQuery's core API for traversing and manipulating parsed HTML/XML documents without a browser. Used for server-side HTML scraping, parsing, and manipulation. Parses HTML strings into a traversable DOM using htmlparser2 or parse5, then exposes jQuery-style selectors and traversal methods ($('.class'), $('a').attr('href'), etc.).

The production-ready animation library for React. Framer Motion provides a declarative API for complex UI animations — spring physics, keyframes, layout animations, gesture handling (drag, tap, hover), and exit animations. The motion.div component wraps HTML elements with animation capabilities via props (animate, initial, exit, transition, variants). Powers polished UI transitions in countless React applications and design systems including Radix UI Themes.

Google Docs REST API for programmatically creating, reading, and editing Google Docs documents including rich text formatting, tables, and images.

Direct bank API providing ACH, wire transfers, RTP, check printing, and card issuance via a single developer-first REST API without middleware.

Connects Google Search Console to Claude AI, giving SEO professionals conversational access to search analytics, URL indexing status, property management, and sitemap operations across their GSC properties.

MCP server for interactive data exploration that turns CSV datasets into actionable insights via AI agents. Provides three tools: load-csv for loading CSV files into DataFrames, run-script for executing Python analysis scripts, and an explore-data prompt template. Acts as a personal data scientist assistant, enabling automated analysis of datasets without manual coding.

Official CLI tool for the NestJS framework that scaffolds new projects, generates modules/controllers/services/guards, and manages builds for Node.js TypeScript applications.

MCP server for Node-RED — an open-source low-code programming tool for IoT, APIs, and automation workflows. Enables AI agents to interact with Node-RED flows, trigger and manage automation pipelines, deploy/update flows, query node status, and integrate Node-RED's IoT and workflow automation capabilities into AI agent systems.