Top PROTOCOL GitHub Repositories & Tools (2026)

Open-source MCP server for LinkedIn. Give Claude and any MCP-compatible AI agent access to profiles, companies, jobs, and messages.

Model Context Protocol (MCP) Server to connect your AI with any MediaWiki

MCP server for Wanderlog — build and edit trip itineraries through conversation

Cross-device clipboard sync for macOS, Windows & Linux — end-to-end encrypted, LAN-only, no cloud. OCR, CLI and MCP server built in.

Java language server

👾 Open Computer Use – Open-Source Alternative to Codex Computer Use

ToolHive is an enterprise-grade platform for running and managing Model Context Protocol (MCP) servers.

A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.

An open-source protocol enabling high-performance, local-first, peer-to-peer, end-to-end encrypted collaborative apps.

Protocol Buffers for ECMAScript. The only JavaScript Protobuf library that is fully-compliant with Protobuf conformance tests.

ADR secures enterprise AI agents through observability, security benchmarking, and threat detection. Deployed at Uber.

Open source Java implementation for Raft consensus protocol.

HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

Matterbridge plugin manager for Matter

Community edition of RepoPrompt: a native macOS context engineering app for AI coding agents, with an MCP CLI.

A complete typescript implementation of the Matter protocol specification (https://buildwithmatter.com). Includes full support for controller, device, commissioning, secure communications, device types, and cluster definitions.

Automate real Microsoft Excel with AI via MCP Server or CLI — Power Query, DAX, VBA, PivotTables, charts, and 326 operations.

Local-first 3-in-1 AI memory layer & MCP server for Claude Code, Codex, Grok, Gemini, VS Code and Cursor. Fuses session history, codebase indexing & concept graphs in SQLite. Enables zero-cloud, privacy-first context & instant recall, supports multi-agent swarms.

Git-native persistent memory for AI coding agents. Implements Google OKF v0.2 with sub-300µs in-memory BM25 search, embedded MCP server, and progressive disclosure. Slashes token bloat by 80% with zero external databases or dependencies. Built in pure Go.

AI API gateway that ends manual channel switching with smart routing, auto failover, exponential cooldown, multi-URL scheduling, live request monitoring and soft-error detection.