# Web5 Nexus > Business layer of Web3. Live products for swaps, fiat, RPC failover, contract audit, and Auth Modal SDKs. Web5 Nexus helps product and engineering teams stop spending months stitching fragmented Web3 vendors. Open a live product first, then integrate from docs. ## Live products - [CrossDEX](https://crossdex.web5.nexus/): Cross-chain and stablecoin swaps - [Ramp](https://ramp.web5.nexus/): Fiat buy and sell flows - [ChainRouter](https://chainrouter.web5.nexus/): EVM RPC failover through one wallet URL - [Web5 Audit](https://audit.web5.nexus/): Contract risk checks - [SDK Docs](https://docs.web5.nexus/): Auth Modal, Bitcoin Core, Web5js, ChainRouter, address validation ## Optional - [Company deck](https://deck.web5.nexus/): Pitch and company overview - [Home](https://web5.nexus/): Product story, supported networks, live apps ## Contact - Email: connect@web5.nexus - Book a demo: https://calendly.com/web5nexus/30min