I'm building a project that works with different cryptocurrencies (bitcoin, eth and tokens, ripple, litecoin, monero and others).

It's not a wallet, but part of the functionality is similar to an SPV wallet, in that the client contacts a server for balances, unspent TX and is able to push transactions on the server.

Ideally for now at least I'd rather not run a full node of each of the blockchains.
Does anyone knows a good service with support for multiple cryptocurrencies for this?

Thanks.