Marketplace GitHub Repositories (2026) · Open Source Tools

The complete open source platform to run your entire marketplace. Storefront, vendor panel, admin console, and integrations in one enterprise-grade platform you own.

A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The #1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins

Free and open-source webshop solution for hostings

Open Source Platform for DTC, B2B Commerce, Marketplaces & Omnichannel. REST APIs, TypeScript SDKs, and production-ready Next.js storefront. Self-host it. Own your data. No vendor lock-in. Zero platform fees.

Faster than your agent alone. And better. A workflow plugin that takes a bug, idea or ticket to a verified pull request: specs, cross-model review by risk, live QA, receipts in your repo. Claude Code · Codex · Cursor · Droid · Grok Build · OpenCode · Muse Code.

A custom Home Assistant component for HomeMatic(IP) that connects to OpenCCU

TYPO3 e-commerce extension for ultra fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce

Laravel ecommerce package for ultra fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce

ShopClass: free, open-source, self-hosted classifieds software in PHP. Run a classifieds site, marketplace, job board, property or car listings. The modern successor to Osclass.

Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.

An open-source registry for VS Code extensions

Python Exploitation Framework, V8 Engine Debugger, Proxy interceptor, marketplace, post-exploitation, backdoor generator,....

Universal SKILL.md catalog for research workflows: literature review, research design, project memory, manuscript writing, and cross-agent delegation for Claude Code, Codex, Gemini, Cursor, OpenClaw, and generic AI clients.