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Show HN: Paca – Lightweight Jira alternative for human-AI collaboration

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Why This Matters

Paca introduces a lightweight, open-source project management platform that integrates AI agents directly into Scrum teams, enabling more collaborative and adaptive workflows. Its self-hosted design offers greater customization and control, making it a compelling alternative to traditional tools like Jira and Trello, especially for organizations exploring human-AI collaboration. This development signifies a shift towards more integrated, AI-enhanced project management solutions in the tech industry.

Key Takeaways

Paca

AI-native. Free. Lightweight. Open-source.

The fully customizable alternative to Jira, Trello, ClickUp, and Monday.

Getting Started · MCP Server · Claude Code Skill · Architecture · Contributing · Roadmap

What is Paca?

Paca is a self-hosted project management platform where AI agents and humans collaborate as equal teammates inside a Scrum team — not as chatbots bolted on the side.

Jira gives you a backlog. ClickUp gives you automations. Monday gives you dashboards. Paca gives your AI agents a seat at the table. They join sprint planning, pick up tasks from the board, write BDD specs, and adapt alongside humans in real time.

Everything about Paca — its workflow, its data model, its UI — is configurable and extendable via plugins.

Why Paca?

Jira / Trello / ClickUp / Monday Paca AI integration Chatbot add-ons, peripheral automation AI agents as first-class Scrum teammates Collaboration model Human-only by default Human + AI, side by side on the same board Hosting Vendor cloud (your data, their servers) Self-hosted, you own everything Cost $8–$20+ per seat/month Free forever Customization Limited; locked behind enterprise tiers Fully open: configuration + plugins Weight Bloated feature sprawl Lightweight core; extend only what you need Source Closed / proprietary 100% open-source (Apache 2.0)

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