- SDK (TypeScript)
- API (REST)
- AI / CLI
- Widget (React)
No API key needed for the public Fuse API. The Trade API uses optional API keys for higher rate limits - see Authentication.
What’s next
First swap
Walk through a complete same-chain swap with approvals.
Cross-chain bridge
Move USDC from Arbitrum to Base in one transaction.
Concepts
How Core, Fuse, and the AI stack fit together.