Tezos community members run blockchain nodes for different testnets. No one is running Blockchain-as-a-service.
A lot of providers are running Tezos Nodes. You can switch to your node provider as per your convenience (local node, testnet, ). By default we are pointing at local node -
http://localhost:18732 OR http://192.168.X.X:18732
To check your current provider, run:
Note: If default rpc-node is - "http://localhost:18731", don't forget to change it to "http://localhost:18732".
Change your provider to local nodes by running:
To use Local node, select:
To use remote nodes, switch your provider to Florencenet by selecting anyone of the following URL:
To use remote nodes, switch your provider to Mainnet by selecting anyone of the following URL:
You can also enter your own custom rpc node for any provider.