Available endpoints:

Endpoints that require arguments:
//xrp-testnet-rpc.polkachu.com/abci_info?
//xrp-testnet-rpc.polkachu.com/abci_query?path=_&data=_&height=_&prove=_
//xrp-testnet-rpc.polkachu.com/block?height=_
//xrp-testnet-rpc.polkachu.com/block_by_hash?hash=_
//xrp-testnet-rpc.polkachu.com/block_results?height=_
//xrp-testnet-rpc.polkachu.com/block_search?query=_&page=_&per_page=_&order_by=_
//xrp-testnet-rpc.polkachu.com/blockchain?minHeight=_&maxHeight=_
//xrp-testnet-rpc.polkachu.com/broadcast_evidence?evidence=_
//xrp-testnet-rpc.polkachu.com/broadcast_tx_async?tx=_
//xrp-testnet-rpc.polkachu.com/broadcast_tx_commit?tx=_
//xrp-testnet-rpc.polkachu.com/broadcast_tx_sync?tx=_
//xrp-testnet-rpc.polkachu.com/check_tx?tx=_
//xrp-testnet-rpc.polkachu.com/commit?height=_
//xrp-testnet-rpc.polkachu.com/consensus_params?height=_
//xrp-testnet-rpc.polkachu.com/consensus_state?
//xrp-testnet-rpc.polkachu.com/dump_consensus_state?
//xrp-testnet-rpc.polkachu.com/genesis?
//xrp-testnet-rpc.polkachu.com/genesis_chunked?chunk=_
//xrp-testnet-rpc.polkachu.com/header?height=_
//xrp-testnet-rpc.polkachu.com/header_by_hash?hash=_
//xrp-testnet-rpc.polkachu.com/health?
//xrp-testnet-rpc.polkachu.com/net_info?
//xrp-testnet-rpc.polkachu.com/num_unconfirmed_txs?
//xrp-testnet-rpc.polkachu.com/status?
//xrp-testnet-rpc.polkachu.com/subscribe?query=_
//xrp-testnet-rpc.polkachu.com/tx?hash=_&prove=_
//xrp-testnet-rpc.polkachu.com/tx_search?query=_&prove=_&page=_&per_page=_&order_by=_
//xrp-testnet-rpc.polkachu.com/unconfirmed_txs?limit=_
//xrp-testnet-rpc.polkachu.com/unsubscribe?query=_
//xrp-testnet-rpc.polkachu.com/unsubscribe_all?
//xrp-testnet-rpc.polkachu.com/validators?height=_&page=_&per_page=_