user45114: So i want trying to use both bitcoin and bitcoin-abc json-rpc on raspberry pi but they will overload the whole pi when downloading and sync @ same time.
So is there anyway to use json-rpc without downloading and sync the whole blockchain or overload the raspberry pi?

user63569: if you want to use bitcoin core, you have to install blockchain. maybe you can use prune mode after its totally synced. 
If you want to use JSON-RPC without installing the blockchain, I suggest you use electrum servers. You can send JSON-RPC commands without installing anything. You just connect to someone's server. 
the commands not the same as bitcoin-core, for instance, you can't createrawtransaction but you can get any address balance or transaction details.
if you want to work with bitcoin-cash, You can connect to electrum bitcoin-cash servers.
check electrum protocol methods here.

45114: <p>So i want trying to use both bitcoin and bitcoin-abc json-rpc on raspberry pi but they will overload the whole pi when downloading and sync @ same time.</p>

<p>So is there anyway to use json-rpc without downloading and sync the whole blockchain or overload the raspberry pi?</p>
 63569: <p>if you want to use bitcoin core, you have to install blockchain. maybe you can use prune mode after its totally synced. </p>

<p>If you want to use JSON-RPC without installing the blockchain, I suggest you use electrum servers. You can send JSON-RPC commands without installing anything. You just connect to someone's server. </p>

<p>the commands not the same as bitcoin-core, for instance, you can't <code>createrawtransaction</code> but you can get any address balance or transaction details.</p>

<p>if you want to work with bitcoin-cash, You can connect to electrum bitcoin-cash servers.</p>

<p>check electrum protocol methods <a href="https://electrumx.readthedocs.io/en/latest/protocol-methods.html" rel="nofollow noreferrer">here</a>.</p>
