Best Open Source products of the month August 2026

mpai

Make existing Codex and Claude Code sessions multiplayer

MPAI offers an open-source way to collaborate in the terminal using Codex and Claude Code. You can join a teammate's native session from another Mac while keeping the full context and identifying yourself clearly. The system uses Tailscale for private connections, ensuring that the host machine always maintains control.

Keystroke

Build powerful AI agents & workflows

Keystroke is a complete platform designed for building and managing powerful AI agents. You simply describe the agent you need, and our system handles the building, tool connection, testing, and deployment to a shared workspace. These agents can be equipped with long-term memory, custom workflows, triggers, and approval processes, all while connecting to over 1,000 popular integrations. We are a YC-backed, open-source project, and you can get started for free today with 20 dollars in included credits.

LumiChats Offline(free)

Your AI, fully offline with Zero data collection & 100% free

Run powerful AI models entirely on your own machine without needing an internet connection, a powerful GPU, or a cloud subscription. LumiChats Offline is a free, open source desktop application built on GPT4All that prioritizes your privacy by default. It supports popular models like Mistral, LLaMA, Qwen, and DeepSeek, and it even lets you chat with your own PDFs and documents using LocalDocs. It works reliably on Windows, Linux, and macOS.

Inferock Bench

An independent receipt for every LLM API call

Inferock-bench is a local proxy that sits between your app and OpenAI, Anthropic, Gemini, or OpenRouter shaped calls. It captures per-call token usage, failures, and retries, then generates an independent receipt showing what you were billed and how much you're actually overpaying for. It gives you a clear breakdown of your actual costs versus what you expected, so you can spot hidden charges or inefficiencies. With this tool, you get full visibility into your API spending, helping you optimize your usage and save money. It's like having a financial auditor for your AI calls, ensuring you only pay for what you use.

superfile

A modern, visual file manager for the terminal

Superfile brings the convenience of a desktop file manager to your terminal. It features a polished multi-panel interface that makes browsing, previewing, and moving files feel intuitive and fast. Because it is fully keyboard-driven, you can navigate your file system with ease while enjoying deep customization options that let you tailor the experience to your exact workflow.

OpenTrade

Open-source trading harness for Claude Code / Codex.

OpenTrade is an open-source harness for Claude Code and Codex agents that gives them the tools and guardrails to trade effectively through Robinhood's official MCP. Out of the box, agents can set up cron schedules, create custom scripts to notify themselves, and run persistent background sessions, all on your own machine.

Meridian

Don't let your work go unnoticed. Get promoted!

Meridian is an open-source AI work journal that runs entirely on your device. It writes up your work in plain English as the day goes, so by the end of the day you have a clear summary of everything you did. Meridian automatically drafts updates for your project management tools like Jira, ready for you to review and post. Just do the work and let the remembering take care of itself. No cloud, no account needed. It is MIT-licensed and completely free.

Memmy Agent

Let every AI remember the same you.

Memmy Agent serves as a centralized personal memory hub for AI agents like Claude Code, Codex, and Hermes. It provides a shared and fully controlled memory space so your agents always recognize you and understand your preferences. By turning your chats, decisions, and past experiences into long-term memory, it provides accurate context for every task and can even handle work directly. It is designed to be local-first, ensuring you remain in control of your data, and includes a free tier to get you started with 2 million ChatGPT tokens.

GitNexus (Akon Labs)

The open-source kernel for coding agents

GitNexus, with 45k GitHub stars, is a Knowledge Graph Kernel that unifies every codebase in your org into one source of truth your coding agents can query. It resolves your code into a deterministic graph, so agents get exact callers, imports, and impact instead of embedding guesses, across every repo and SCM you run. On our public benchmark at https://www.akonlabs.com/benchmarks, coding agent runs are 51% cheaper with GitNexus connected. It works with any agent over MCP.

Task Monki

Run coding agents through the full development process

Task Monki is an open source desktop application that helps you manage multiple coding agents from the initial task assignment to the final pull request. You can run several tasks simultaneously, track the progress of each agent, and preview results without needing to manually configure complex services or containers. It also allows you to delegate work between agents, letting them review each other, compare different coding strategies, and challenge assumptions to ensure higher quality output.