Errors and troubleshooting

This page provides a guide to common JSON-RPC and HTTP errors when testing your connection with GetBlock's API.

Connection issues

Code	Error message	Solution
401	Access denied	Double-check that <ACCESS_TOKEN> is correctly replaced with your actual token. Ensure there are no trailing spaces.
404	Could not resolve host	Verify that the URL https://go.getblock.io/<ACCESS_TOKEN>/ is correct.
429	Too many requests	Check your GetBlock account for usage limits. Upgrade your plan if necessary.

JSON-RPC errors

Code	Error message	Solution
32601	The method does not exist/is not available	Verify the method name (eth_blockNumber, eth_getBalance, etc.) against the blockchain's JSON-RPC specifications.
32602	Invalid argument	Ensure the parameters in the params array match the expected format for the method.
32700	Parse error	Double-check your JSON syntax. Ensure your request is properly formatted.