Open-source plugins that specialize Claude for knowledge-work roles like sales, legal, finance, and support, for use in Claude Cowork.
Framework for creating videos programmatically using React components, with rendering to MP4 and other formats.
Python library that runs large language model inference layer by layer, so 70B-class models fit on a single 4GB GPU without quantization.
FastAPI is a Python web framework for building APIs using standard type hints, with automatic OpenAPI and JSON Schema documentation.
Reverse-engineering analysis plugin and visual workbench for DeepSeek Harness, combining static analysis, debugging, HTTP capture and protocol decoding.
Provides a PyTorch backend that runs PyTorch models and operations on Google's Tensor Processing Units (TPUs).
MCP server and Unity Editor package that lets AI assistants control scenes, scripts, assets, tests, and builds in Unity.
Rust GUI component library and framework for building cross-platform desktop apps on the GPUI rendering engine.
Python library that uses LLMs and graph-based pipelines to extract structured data from websites and local documents from a natural-language prompt.
A React framework for building full-stack web applications with server rendering, static generation, and routing.
Inference engine for running AI models locally inside apps, with Rust core and Swift, Python, and TypeScript bindings.
A C library for videogame programming with 2D/3D graphics, input, audio, and windowing across desktop, mobile, web, and embedded platforms.
A Python-embedded domain-specific language and TVM-based compiler for writing high-performance GPU, CPU, and NPU kernels.
A data-driven, ECS-based game engine written in Rust, supporting both 2D and 3D games.
Static recompilation runtime libraries and analysis tools for translating PlayStation 3 binaries into native C/C++ executables.
Gin is a Go HTTP web framework with a Martini-like API built on httprouter for fast REST APIs and web services.
Open-source C++ library of computer vision and image processing algorithms, with bindings for Python, Java, and other languages.
Java framework for building distributed, long-running agents with an event stream, tool-call permissions, middleware, and sandboxed workspaces.
A library of model optimization techniques (quantization, pruning, distillation, NAS, speculative decoding, sparsity) that exports compressed checkpoints for inference frameworks.
Sandboxed execution system that runs untrusted code on Windows, Linux, and macOS using OS-native sandboxes or VMs behind one policy model.
Google's open-source SDK for building natively compiled mobile, web, and desktop apps from a single Dart codebase.
Inference code, checkpoints, and notebooks for Meta's Segment Anything Model (SAM), which produces object masks from points, boxes, or automatically for whole images.
PyTorch library for audio generation research, providing inference and training code for MusicGen, AudioGen, and EnCodec.
Cross-platform C library for low-level access to graphics, input, audio, and windowing, used to build games and multimedia software.
DiceBear is an open source library that generates deterministic SVG avatars from seed strings across 63 styles.
Meta's Segment Anything Model 2 for promptable segmentation in images and videos, with inference code, checkpoints, and example notebooks.
Framework for building native Android, iOS, and other platform apps using React and JavaScript.
Software update framework for macOS apps, supporting EdDSA-signed updates, delta patches, and sandboxed apps.
Specification and Scala tooling for the Code Property Graph, a language-agnostic representation of program code for analysis.
Python toolkit for speaker diarization built on PyTorch, with pretrained pipelines and models that can be fine-tuned on your own data.
Java workflow engine that executes BPMN processes, CMMN cases, and DMN decision rules, embeddable or runnable as a server.
An iOS library that natively renders After Effects vector animations exported as Bodymovin JSON.
Core code of the Laravel PHP web application framework, providing routing, dependency injection, ORM, queues, and more.
Open-source large language models and tooling for financial tasks such as sentiment analysis, forecasting, and robo-advisory.
A PHP library for composing and sending email with SMTP, attachments, HTML bodies, and address validation.
Lightweight neural network inference framework for running AI models on Espressif ESP series chips.
A declarative Go package for building command line tools with commands, flags, and shell completion.
An open-source storage framework for building Lakehouse architectures with ACID tables accessible from Spark, Flink, Trino, Presto, and Hive.
Contrib repository of OpenTelemetry Collector components that are not suitable for the core collector repository.
Coral NPU is an open-source RISC-V neural processing unit IP core for low-power ML inference on wearables and edge SoCs.
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.
Vue 2 and Vue 3 UI component library implementing the Ant Design design system.
NixOS configuration modules and package expressions for running NixOS bare metal on Apple Silicon Macs.
Swift library for HTTP networking built on URLSession, offering chainable requests, parameter encoding, and response validation.
Erlang programming language runtime and the OTP libraries and design principles for building fault-tolerant, soft real-time systems.
CVA6 is a 6-stage, single-issue, in-order 64-bit RISC-V CPU core written in SystemVerilog, supporting Linux-capable configurations.
Apache DataFusion Comet is a plugin that accelerates Apache Spark queries by running operators and expressions natively on Arrow columnar data.
Source repository for the LaTeX2e kernel and core bundles (base, tools, graphics, amsmath, firstaid, latex-lab).
Middleware plugin that offloads Spark SQL physical plan execution to native engines like Velox and ClickHouse.
Swift library for declaring type-safe command-line interfaces, with automatic parsing, help text, and error messages.
Objective-C library for asynchronously downloading and caching images, with UIImageView, UIButton, and MKAnnotationView categories.
LaTeX/TikZ code for drawing neural network architecture diagrams for reports and presentations.
R package providing a consistent set of verbs for filtering, selecting, mutating, summarising, and arranging data frames.
Vim plugin for connecting to and querying databases through a single URL and the :DB command.
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.
Official PHP SDK for accessing Amazon Web Services APIs such as S3, DynamoDB, and hundreds of other AWS services.