Go

A distributed workflow engine and state machine library for Go that implements aspect-oriented programming and the actor model.

An actor-based framework for building distributed, event-driven systems in Go, inspired by Erlang with network transparency.

A distributed actor framework for Go that enables building scalable, reactive systems with typed messages and clustering.

A blazingly fast, low-latency actor engine written in Go for building highly concurrent and distributed systems.

Ultra fast distributed actor framework for Go, C#, and Java/Kotlin, enabling cross-platform concurrency and messaging.

An open-source runtime governance platform that verifies, controls, and audits every action taken by AI agents before execution.

A comprehensive Go library for building AI agents and applications with unified multi-provider LLM support, tool calling, streaming, and cost tracking.

An embeddable vector database for Go with a Chroma-like interface, enabling RAG and semantic search without external dependencies.

A Go SDK for AI applications providing a unified API across 22+ providers with streaming, structured output, and MCP support.

A high-performance AI agent runtime engine that transforms terminal AI tools into production services with persistent sessions.

The Go implementation of LangChain, enabling developers to build LLM-powered applications through composable components.

A Go library for building stateful, multi-agent applications with LLMs, featuring parallel execution, persistence, and human-in-the-loop workflows.

An open-source AI engine that runs LLMs, vision, voice, and image/video models on any hardware with drop-in OpenAI API compatibility.

A local compatibility server that provides a subset of the Gemini and OpenAI APIs for testing and development, backed by a local LLM.

A platform to run, manage, and serve open-source large language models (LLMs) locally or on your own infrastructure.

A Go package for managing multiple Ollama instances with automatic failover and model availability tracking.

OpenTelemetry-native LLM observability SDK for Go backends, providing tracing, token tracking, cost attribution, and budget guardrails.

A lightweight AI agent runtime for Go that lets you define multi-agent crews in YAML and run them with goroutines and channels.

A Go package for audio playback and processing with a simple API and a rich library of effects.

A pure Go library for decoding and encoding FLAC (Free Lossless Audio Codec) audio streams.

A Go library for parsing AAC-LC and HE-AACv1 audio bitstreams from ADTS headers.

A Go implementation of the MPRIS D-Bus interface for controlling media players on Linux.

A Go library for audio processing and synthesis with WAVE file support, oscillators, and breakpoints.

Go bindings for libsamplerate, a high-quality audio sample rate conversion library.

A native Go library for reading and writing ID3 v2.3 and v2.4 metadata tags in MP3 files.

Go bindings for the miniaudio library, providing a cross-platform audio playback and capture API.

A Go wrapper for the minimp3 C library that provides fast, lightweight MP3 decoding capabilities.

Go library providing music theory models for notes, scales, chords, and keys with a command-line utility.

A low-level Go library for cross-platform sound playback with a simple context and player model.

Go bindings for the PortAudio audio I/O library, enabling audio input/output operations in Go applications.

A modular authentication system for Go web applications, providing pluggable modules for common auth features.

A lightweight OAuth 2.0 authorization server supporting Device Code, Authorization Code with PKCE, and Client Credentials grants.

A pure Go implementation of the Branca specification for authenticated encrypted API tokens using XChaCha20-Poly1305.

An authorization library supporting ACL, RBAC, ABAC, and other access control models with a unified PERM metamodel.

A Go library for parsing Netscape cookies.txt format files used by browsers and tools.

A Go package providing GitHub App authentication with JWT, installation tokens, and personal access token support.

A Go library providing simple, clean, and idiomatic authentication for modern APIs and web applications.

A lightweight, multi-tenant Identity and Access Management (IAM) server built in Golang.

A Go implementation of JOSE standards (JWE, JWS, JWT) for secure JSON object signing and encryption.

A comprehensive JWT library for Go supporting parsing, verification, generation, and signing with multiple algorithms.

A Go library for JWT authentication with Redis-backed token lifecycle management and device fingerprint binding.

An open-source OAuth2 and OpenID Connect server for simple, secure authentication, built in Go.

Go library providing chainable HTTP handlers for OAuth1 and OAuth2 authentication with major providers.

A lightweight, generic role-based access control (RBAC) library for Go applications with inheritance and custom assertions.

A Go package providing a fast, secure session management implementation for the standard net/http library.

A Go package providing a simple, clean, and idiomatic way to implement multi-provider authentication for web applications.

A simple, stateful session management library for Go with CSRF protection and easy session revocation.

A feature-complete, dependency-free JSON Web Token library for Go with secure API design.

A safe, simple, and fast JSON Web Token (JWT) library for Go, implementing RFC 7519.

A JWT authentication middleware for Go HTTP servers with short-lived auth tokens, refresh tokens, and CSRF protection.

A Go implementation of JSON Web Tokens (JWT) for signing, verifying, parsing, and generating tokens.

A complete Go implementation of JOSE (JWA/JWE/JWK/JWS/JWT) for signing, encryption, and key management.

An open-source implementation of Google's Zanzibar authorization system, providing a scalable and customizable permission server.

A standalone JWT login microservice with pluggable backends including OAuth2, htpasswd, and OSIAM.

A Go client implementation for the OAuth 2.0 authorization framework.

An OpenID Foundation-certified OpenID Connect client and server library for Go, designed for ease of use.

A high-performance, flexible authorization/permission engine inspired by Google Zanzibar for fine-grained access control.

A Go library for implementing OAuth2 authorization and token servers with support for PKCE.

A Go library for generating TOTP and HOTP one-time passwords with customizable parameters.

A Go library for generating and verifying HMAC-Based (HOTP) and Time-Based (TOTP) one-time passwords.

A pure Go implementation of PASETO tokens, a secure alternative to JWT for stateless authentication.

Go middleware for user authentication, session management, and role-based permissions using Redis.

A Go library for managing OAuth2 scopes with wildcard matching and struct field filtering.

A lightweight, efficient, and secure HTTP session management library for Go applications.

A Go package for encoding and decoding secure cookies with encryption and authentication, offering high performance and zero heap allocations.

A Go package providing HTTP session management for web servers with extensible interfaces and Google App Engine support.

A dead simple, highly performant, highly customizable sessions middleware for Go HTTP servers.

A simple, effective Go package for HTTP session management with customizable stores and OWASP-recommended defaults.

A minimalistic Go library for generating, parsing, and verifying HMAC SHA-256 JSON Web Tokens.

An open-source, Google Zanzibar-inspired database for storing and querying fine-grained authorization data at scale.

A Go library for handling X509 proxy certificates to enable secure authentication in HTTP clients.

A Byzantine fault-tolerant consensus engine for replicating state machines across distributed systems, powering blockchain networks.

A modular, open-source blockchain SDK for building secure, high-performance, interoperable Layer 1 chains.

An interpreted, deterministic Go virtual machine for building succinct and composable smart contracts on a blockchain.

A Go implementation of the Ethereum execution layer protocol, providing a full node client and developer tools.

Go-based framework for building Polkadot/Substrate-compatible blockchain runtimes.

A Go implementation of the Polkadot Host, providing an execution environment for Polkadot runtime WebAssembly blobs.

The original and most widely used IPFS implementation in Go, providing a full-featured node for decentralized content-addressed storage.

A complete implementation of a Lightning Network node for fast, scalable Bitcoin payments.

A terminal user interface for monitoring Cardano nodes, supporting cardano-node, Dingo, and Amaru implementations.

A comprehensive Go SDK and RPC client for interacting with the Solana blockchain, including JSON RPC, WebSocket, and program clients.

A Byzantine Fault Tolerant (BFT) middleware for securely replicating state machines across many machines.

A production-ready Go SDK for interacting with the TRON blockchain, providing high-level abstractions and flexibility.