zkChan Backend

Express API that proxies Jupiter Aggregator for quotes and generates a serialized swap transaction, which the frontend signs and sends via Phantom.

Endpoints

• GET /health – service health
• GET /api/tokens – token list (via token.jup.ag)
• POST /api/quote – Jupiter quote proxy
• POST /api/swap – Jupiter swap (returns swapTransaction base64)

Run

cp .env.example .env
# Ensure CORS_ORIGINS has your website origin (e.g., https://zk-chan.fun)
npm i
npm run dev