Does Ethereum JSON-RPC have rate limits

Question

I am currently using a public RPC URL to interact with smart contracts on a Ethereum-forked blockchain. I would like to understand if there are any limitations (eg. rate limits) when interacting with a smart contract.

const tokenContract = new WEB3_RPC_CLIENT.eth.Contract(token.abi, token.tokenAddress);
const result = await tokenContract.methods.balanceOf(ethAddress).call();
const format = WEB3_RPC_CLIENT.utils.fromWei(result, token.decimals);

Given the example above, which lines might trigger a rate limit - if they even have any limitations at all?

Or is it that methods only counts towards some rate limit protection if they incur a (gas fee) cost?

Answer 1

I would like to understand if there are any limitations (eg. rate limits) when interacting with a smart contract.

Run your own Ethereum node and there are no rate limits, or you can set them yourself. If you are using a commercial node provider then any rate limit question is a commercial support question and out of scope for StackOverflow.