Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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lindera
A pure-Rust morphological analysis library for tokenizing Japanese, Chinese, and Korean text.
ember-concurrency
Cancelable, restartable async task primitives for Ember.js that replace manual promise and flag juggling with declarative concurrency control.
dylint_linting
Macros and config helpers for authoring custom Dylint lint libraries without boilerplate.
node-auth0
Official Node.js client library for the Auth0 identity platform's Authentication and Management APIs.
thenBy.js
A tiny JavaScript library for chaining multiple sort comparators with a firstBy().thenBy() syntax.
parso
A fast, error-tolerant Python parser with incremental diff parsing for building linters, IDEs, and refactoring tools.
rust-s3
A Rust client for Amazon S3 and S3-compatible object storage, with async, sync, and blocking APIs.
URLify
Fast PHP slug generator and transliteration library for turning any string into a clean URL.
async-compression
Async adaptors between Rust's compression crates and Tokio/futures IO traits
register-service-worker
A tiny script that wires up service worker registration with lifecycle hooks for offline-ready web apps.
aws-lc-rs
Rust cryptographic library backed by AWS-LC and API-compatible with ring, with optional FIPS support.
traitlets
A pure Python library that adds typed, validated, observable attributes to your classes, and the layered configuration system built on top of them.
dd-trace-py
Datadog's official Python APM client for distributed tracing, profiling, and observability.
InfluxDB Client Go
The official Go client SDK for writing and querying data on InfluxDB 2.x time-series servers.
openidconnect-rs
A strongly-typed, extensible Rust implementation of the OpenID Connect protocol for building relying-party authentication and OIDC provider integrations.
FastAPI CLI
The command-line tool that runs, reloads, and serves your FastAPI apps
sse.js
A flexible EventSource replacement for JavaScript with POST support, custom headers, and automatic reconnection.
@a2a-js/sdk
Official TypeScript/JavaScript SDK for building A2A protocol agents and clients across JSON-RPC, REST, and gRPC transports.
react-immutable-proptypes
PropType validators that let React components type-check Immutable.js List, Map, Set, and Record props instead of falling back to a generic instanceOf check.
color2k
A color parsing and manipulation library for JavaScript that ships in roughly 2kB, covering hex, RGB, HSL, and named CSS colors.
text-splitter
Split text into semantic chunks up to a desired size, by characters or tokens
backtrace
The Rust crate for capturing, symbolizing, and printing stack backtraces at runtime.
ghp-import
A small CLI that copies a built docs directory straight onto your repo's gh-pages branch.
method-override
Express/Connect middleware that lets clients override the HTTP method of a request via a header or query string.
