When using GET address API, can not identify if the address is inactive or not valid

[timyeou1234]

Discord user ID

No response

Describe your question in detail.

We are using
https://aptos.dev/en/build/apis/fullnode-rest-api-reference?network=mainnet#tag/accounts/GET/accounts/%7Baddress%7D
for address validation.
We detect if the sequence number is present or not to identify if the account to send to is active or not.
If this isn't the API you want us to use to decide the availability of a certain address, please advise the correct one.

What error, if any, are you getting?

It always returns 0 when the address is not valid or inactive(No txn yet)

What have you tried or looked at? Or how can we reproduce the error?

Just use the API with a random address

Which operating system are you using?

macOS

Which SDK or tool are you using? (if any)

REST API

Describe your environment or tooling in detail

No response

[0x-j]

there's a new aip that landed recenlty called stateless account, so all addresses are considered valid now, but checking seq number is a good way to tell if it's active (enough for most cases

https://aptos.dev/build/aips/aip-115#do-dapps--cex-need-to-change-anything