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🌌 Modspire

Modspire is a Windows desktop studio for planning Minecraft Java modpacks. Describe a world or name a mod in chat, search the Modrinth catalog, compare candidates, and organize each pack project in one place.

🎬 See the app in action: ▶️ Watch the 23-second Modspire tour · ⬇️ Download the latest release

Latest: Modspire 0.2.98 — Undo/redo mod selections, save named pack variants and share lists with project links. Try the sample browser demo; direct Modrinth search needs no AI account.

✨ Explore Modspire

• 🗂️ Pack projects — keep separate Minecraft versions, loaders, mod selections, and chat histories.
• 🤖 Pack Assistant — turn a theme or exact mod request into catalog suggestions and continue refining in chat.
• 🔎 Mod search — search Modrinth without an AI key; optionally configure CurseForge with your own approved API key.
• 🧩 Pack management — import Modrinth share links or .mrpack files, review dependencies, and export projects.
• 🧪 Pack Lab — inspect compatibility notes, mod roles, snapshots, crash-log notes, and project diagnostics.
• 🛠️ Mod Creator — develop a mod idea into a specification and starter-code outline.
• 🎨 Four interfaces — switch layouts, color themes, and Minecraft-inspired backgrounds.
• 🌐 Local web view — open the same workspace in a browser while the desktop app is running.

🧭 Guides

• 🚀 Getting started
• 🔎 Mod search and pack selection
• 🎨 Interfaces and designs
• 🧠 AI, privacy, and limitations
• 🧰 Troubleshooting and development
• 📝 Patch log

🧠 AI options

Available routes include ChatGPT account access, OpenAI or Anthropic API credentials, local Ollama/Bionic models, compatible OmniRoute endpoints, and local OpenCode servers. Modspire performs catalog lookup itself, so the AI provider does not need a Modrinth tool. Model support and provider quotas vary.

⚠️ The app has not been tested with every local model or cloud agent. Review recommendations and test the finished pack in Minecraft. Read the community test disclaimer.

⚖️ Project status

Modspire is an independent community test project and is not affiliated with Mojang/Microsoft, Modrinth, CurseForge, or OpenAI. Original app files are MIT licensed, while the bundled Sign in with ChatGPT DevKit has separate noncommercial terms. See licensing and third-party notices. The app organizes pack plans; it does not install every mod or verify that Minecraft launches.