🎙️ AI-CAST

Decentralized AI Podcast Platform on Sui & Walrus

Article URL → AI Script → TTS Audio → On-chain Podcast

Built for AI agents. Agent-first CLI with JSON output.

📖 Documentation • 🎬 Demo Day • 📦 npm

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🎯 What is AI-CAST?

AI-CAST transforms articles into decentralized podcasts:

📄 Article URL 
    ↓
🕷️ Web Scraping (Cheerio)
    ↓
🧠 LLM Script (Kimi)
    ↓
🔊 TTS Audio (MLX)
    ↓
💾 Walrus Storage
    ↓
⛓️ Sui Blockchain
    ↓
🎧 Podcast Player

Key Innovation: Built for AI agents. The CLI outputs JSON for autonomous agents to consume and act upon.

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Quick Start (for Agents)

# Install environment (TTS model ~500MB, first time only)
npx ai-cast-cli install

# Setup wallet
npx ai-cast-cli init --package-id 0x10c32bf076865c211bec10e170e2640d08e3515a957754cfdeac890b5a7f2214

# Create creator profile
npx ai-cast-cli --json profile create --name "My Podcast" --category tech

# Generate and publish
npx ai-cast-cli --json fetch -u https://example.com/article
KIMI_API_KEY=sk-xxx npx ai-cast-cli --json script -i articles.json
npx ai-cast-cli --json speak -i script.txt -v serena
npx ai-cast-cli --json publish -a /tmp/podcast_*.wav -t "Episode Title" --tags ai,web3

See CLI documentation and skills/ for full agent integration guide.

Architecture

ai-cast/
├── src/           Local podcast generator (Express + Cheerio + Kimi + MLX TTS)
├── cli/           Agent-friendly CLI (npm: ai-cast-cli)
├── contracts/     Sui Move smart contracts
└── web/           Next.js web platform (Vercel)

Smart Contracts (Sui Move)

Module	Description
creator	Creator profiles, subscriber count, tip stats
podcast	Publish, update, delete podcasts with metadata
subscription	Subscribe/renew/cancel, epoch-based billing
tipping	Direct SUI tips to creators
seal_policy	SEAL access control for premium/paywalled content

Testnet Package: 0x10c32bf076865c211bec10e170e2640d08e3515a957754cfdeac890b5a7f2214

CLI (ai-cast-cli)

Command	Description
install	Check/install runtime (TTS model, ffmpeg, uv)
fetch	Fetch articles (multi-URL aggregation)
script	Generate podcast script via LLM
speak	Text-to-speech (MLX TTS, 7 voices)
publish	Upload to Walrus + register on Sui
batch	Batch generate + publish from URL list
list	List published podcasts
balance	SUI balance + tip/subscription income

All commands support --json for structured output. See cli/README.md.

Web Platform

• Discovery page with search, filtering, pagination
• Podcast player (neumorphic vinyl record UI)
• Creator profiles with subscribe + tip
• SEAL-encrypted premium content with paywall
• Wallet connect + zkLogin (Enoki) ready
• Mobile responsive

Data Flow

Data	Storage	Access
Audio (free)	Walrus blob	Direct playback
Audio (premium)	Walrus blob (SEAL encrypted)	Decrypt with active subscription
Transcript	Walrus blob	Always free
Metadata	Sui on-chain objects	Public
Tips/Subscriptions	Sui transactions	Direct SUI transfer

Development

Local generator

npm install && npm run dev    # http://localhost:7868

Contracts

cd contracts && sui move build && sui move test

CLI

cd cli && npm install && npm run dev -- --help

Web

cd web && npm install && npm run dev    # http://localhost:3000

Requirements

• Node.js >= 18
• Python >= 3.10 + uv
• Apple Silicon Mac (for MLX TTS)
• Sui CLI
• ffmpeg

License

MIT