what are ISO compliant crypto currencies?
XRP and XLM are the most popular ISO 20022 compliant crypto currencies.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: what are ISO compliant crypto currencies?
### Input: 
### Response: XRP and XLM are the most popular ISO 20022 compliant crypto currencies.