Open-source plugins that specialize Claude for knowledge-work roles like sales, legal, finance, and support, for use in Claude Cowork.
Reverse-engineering analysis plugin and visual workbench for DeepSeek Harness, combining static analysis, debugging, HTTP capture and protocol decoding.
MCP server and Unity Editor package that lets AI assistants control scenes, scripts, assets, tests, and builds in Unity.
A mod loader and C++ modding SDK for Geometry Dash that provides hooks, UI, and tooling for building mods.
Static recompilation runtime libraries and analysis tools for translating PlayStation 3 binaries into native C/C++ executables.
Open-source SDK for building and running AI agents in Python and TypeScript, with a fully assembled harness and a model-agnostic agent loop.
Java framework for building distributed, long-running agents with an event stream, tool-call permissions, middleware, and sandboxed workspaces.
Open-source TypeScript SDK for embedding spreadsheet, document, presentation, and table editing into your own applications.
Static recompiler and runtime that converts Xbox 360 PowerPC code into portable C++ runnable on modern platforms.
Sandboxed execution system that runs untrusted code on Windows, Linux, and macOS using OS-native sandboxes or VMs behind one policy model.
Inference code, checkpoints, and notebooks for Meta's Segment Anything Model (SAM), which produces object masks from points, boxes, or automatically for whole images.
Open-source framework and toolkit of container components created by Docker for assembling custom container-based systems.
General-purpose toolkit implementing TLS, DTLS, and QUIC protocols on top of a standalone cryptographic library and CLI.
PyTorch library for audio generation research, providing inference and training code for MusicGen, AudioGen, and EnCodec.
DiceBear is an open source library that generates deterministic SVG avatars from seed strings across 63 styles.
Specification and Scala tooling for the Code Property Graph, a language-agnostic representation of program code for analysis.
Toolkit for building native desktop apps with TypeScript and a custom markup language, compiled to a native executable.
Python toolkit for speaker diarization built on PyTorch, with pretrained pipelines and models that can be fine-tuned on your own data.
A PHP framework and set of reusable components for building web and console applications.
Ruby web application framework implementing MVC with ActiveRecord, ActionView, ActionController, and related libraries for database-backed apps.
Open-source large language models and tooling for financial tasks such as sentiment analysis, forecasting, and robo-advisory.
Ibex is a parametrizable 32-bit RISC-V CPU core written in SystemVerilog for embedded control applications.
A C library implementing X.509 certificate handling and the TLS and DTLS protocols, with a small footprint for embedded systems.
Ruby framework for building AI features with a unified API across 23 model providers, tools, agents, and Rails conventions.
Official Java SDK for building Model Context Protocol servers and clients, maintained with the Spring AI team.
Reusable, community-audited Solidity smart contract library with ERC20/ERC721 implementations and role-based access control.
A declarative Go package for building command line tools with commands, flags, and shell completion.
Theming framework that applies color schemes, wallpapers, and fonts across NixOS, Home Manager, nix-darwin, and Nix-on-Droid.
Async I/O runtime for Zig that schedules lightweight coroutines across OS threads and implements the std.Io interface.
Unit testing framework for PHP, implementing the xUnit architecture.
Contrib repository of OpenTelemetry Collector components that are not suitable for the core collector repository.
Async PHP library implementing the Telegram MTProto protocol client API, for logging in as a user or bot without the Bot API.
A Go library for calling C functions in shared libraries at runtime without using Cgo.
Immediate-mode GUI toolkit written in Zig for full applications or debug overlays inside existing apps and games.
A collection of NixOS modules that tune system settings for specific laptops, desktops, and other hardware.
Neovim plugin that wraps fzf (or skim) to provide fuzzy pickers for files, buffers, grep, LSP symbols, git and more, written in Lua.
Erlang programming language runtime and the OTP libraries and design principles for building fault-tolerant, soft real-time systems.
NVIDIA's C++/CUDA library of optimized collective communication primitives (all-reduce, all-gather, broadcast, etc.) for multi-GPU and multi-node systems.
Apache DataFusion Comet is a plugin that accelerates Apache Spark queries by running operators and expressions natively on Arrow columnar data.
Collection of optional add-on plugins for the OPNsense firewall distribution, installable from the firmware GUI.
PHP logging library that sends logs to files, sockets, email, databases and web services via a PSR-3 compatible API.
Source repository for the LaTeX2e kernel and core bundles (base, tools, graphics, amsmath, firstaid, latex-lab).
Neovim plugin supplying the SchemaStore JSON schema catalog to the jsonls and yamlls language servers.
Collection of 45+ independent Lua modules that extend Neovim with common editing, navigation, and UI features.
Emacs client for the Language Server Protocol, providing IDE-style completion, diagnostics, navigation and refactoring across many languages.
Core Solidity smart contracts for Uniswap v4, a singleton automated market maker with extensible pools and hooks.
Declarative Elixir framework for defining resources, actions, and policies that generate APIs, queries, and business logic.
A career-mode overhaul mod for BeamNG.drive that adds freeroam events, police interactions, economy, deliveries, insurance, and dealership changes.
R toolkit for single-cell genomics analysis, covering clustering, integration, and spatial and multimodal data.
Solidity test helper library providing cheatcode wrappers, error constants, storage utilities, and assertions for Foundry tests.
Gas-optimized Solidity snippets and contract libraries for Ethereum, including ERC20, ERC721, and ERC1155 implementations.
Solidity contracts from Uniswap providing a unified token approval and signature-based transfer system for ERC20 tokens.
Solidity smart contracts for Across, a cross-chain token bridge with a HubPool on Ethereum and SpokePools on other networks.
Gas-optimized Solidity building blocks for smart contract development, including tokens, auth, math, and utility contracts.
Perl web framework with a built-in non-blocking HTTP/WebSocket server and client, plus MVC, routing, templates, and JSON/HTML parsing.
Solidity test helper library providing assertions, equality checks, and logging for Foundry and DappTools test suites.
Opinionated framework for building production-ready, standalone Spring applications with minimal configuration.