Free RPC nodes

While we are in the process of going live. We are opening up some of the infra we are building as public goods. All nodes currently have a rate limit of 30 requests per second pending go live

Chain	RPC endpoint	Free now
Linea	https://linea-mainnet.abeonabase.com	✅
Base	https://base-mainnet.abeonabase.com	✅
Optimism	coming soon	✅
Polygon zkEVM	coming soon	✅