Open-source plugins that specialize Claude for knowledge-work roles like sales, legal, finance, and support, for use in Claude Cowork.
Python library that runs large language model inference layer by layer, so 70B-class models fit on a single 4GB GPU without quantization.
Provides a PyTorch backend that runs PyTorch models and operations on Google's Tensor Processing Units (TPUs).
Open-source text-to-speech library with a 1.7B 1-bit speech model and lightweight ONNX models that run on CPU.
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.
Open-source Python framework for training and backtesting financial trading agents with deep reinforcement learning.
Python library providing GPU-accelerated tensor computation like NumPy, plus a tape-based autograd system for building deep neural networks.
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.
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.
A library of model optimization techniques (quantization, pruning, distillation, NAS, speculative decoding, sparsity) that exports compressed checkpoints for inference frameworks.
An end-to-end open source platform for building and deploying machine learning models, with Python and C++ APIs.
Sandboxed execution system that runs untrusted code on Windows, Linux, and macOS using OS-native sandboxes or VMs behind one policy model.
Offline IP-to-region lookup library and data management framework supporting IPv4 and IPv6 with xdb query clients.
Cross-browser test suite for Web platform specifications, run in all major browsers to check interoperability.
A cross-browser library of ready-made CSS animation classes applied by adding a class name to an element.
General-purpose toolkit implementing TLS, DTLS, and QUIC protocols on top of a standalone cryptographic library and CLI.
Godot 4 addon for creating dialogs, visual novels, and RPG conversations, with character management.
A C++ project that reverse-engineers GTA: San Andreas and rewrites its functions as a DLL that replaces the in-game code.
TypeScript library for building type-safe production applications with typed errors, dependency injection, structured concurrency, and schema validation.
Framework for building native Android, iOS, and other platform apps using React and JavaScript.
Java workflow engine that executes BPMN processes, CMMN cases, and DMN decision rules, embeddable or runnable as a server.
A PHP framework and set of reusable components for building web and console applications.
An iOS library that natively renders After Effects vector animations exported as Bodymovin JSON.
Cross-platform C++ framework for building desktop and mobile apps and VST, VST3, AU, AUv3, LV2 and AAX audio plug-ins and hosts.
Cross-platform .NET framework for building cloud-connected web, IoT, and mobile backend applications.
Ibex is a parametrizable 32-bit RISC-V CPU core written in SystemVerilog for embedded control applications.
Ruby framework for building AI features with a unified API across 23 model providers, tools, agents, and Rails conventions.
Lightweight neural network inference framework for running AI models on Espressif ESP series chips.
Reusable, community-audited Solidity smart contract library with ERC20/ERC721 implementations and role-based access control.
Async I/O runtime for Zig that schedules lightweight coroutines across OS threads and implements the std.Io interface.
Foundational Java framework providing dependency injection, web MVC, data access, and other infrastructure for enterprise applications.
Source for Firebase's open-source Apple platform libraries, covering auth, Firestore, messaging, storage, and more for iOS and macOS apps.
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.
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.
NVIDIA's C++/CUDA library of optimized collective communication primitives (all-reduce, all-gather, broadcast, etc.) for multi-GPU and multi-node systems.
CVA6 is a 6-stage, single-issue, in-order 64-bit RISC-V CPU core written in SystemVerilog, supporting Linux-capable configurations.
Julia ecosystem for interactive, GPU-accelerated data visualization and plotting with multiple rendering backends.
Apache DataFusion Comet is a plugin that accelerates Apache Spark queries by running operators and expressions natively on Arrow columnar data.
R package for building interactive web applications with reactive programming, without requiring HTML, CSS, or JavaScript.
Collection of optional add-on plugins for the OPNsense firewall distribution, installable from the firmware GUI.
Python library that computes Shapley-value explanations for the predictions of any machine learning model.
Middleware plugin that offloads Spark SQL physical plan execution to native engines like Velox and ClickHouse.
Neovim plugin supplying the SchemaStore JSON schema catalog to the jsonls and yamlls language servers.
AWS-LC is a general-purpose cryptographic library (libcrypto/libssl) maintained by the AWS Cryptography team, derived from BoringSSL and OpenSSL.
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.
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.
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.
iOS, macOS and tvOS SDK for authenticating against OAuth 2.0 and OpenID Connect providers using RFC 8252 best practices.
Solidity contracts from Uniswap providing a unified token approval and signature-based transfer system for ERC20 tokens.
R package performing noncompartmental analysis (NCA) calculations and summaries for pharmacokinetic data.
Gas-optimized Solidity building blocks for smart contract development, including tokens, auth, math, and utility contracts.