Error Reference

Learn about the standard JSON-RPC error codes and Unifra's custom error codes.

HTTP Status Codes

In addition to the standard Ethereum JSON-RPC error codes, Unifra will return the following status codes for HTTP requests:

HTTP Status Codes

HTTP Status Codes

Example Response

// Example 429 Error
	"jsonrpc": "2.0",
	"error": {
		"code": 429,
		"message": "Your app has exceeded its compute units per second capacity.",
	"id": 1


  • No Pending Txs: The concept of pending transactions doesn't exist on this chain (no mempool).