Address
121SEj9KCCVT8RMmGfY1wVzWiQbSxWu2i5

Summary
Script Public Key
76a9140b0d313a0212bd4fd470282c7bb3853dcf0fa51988ac
QR Code
121SEj9KCCVT8RMmGfY1wVzWiQbSxWu2i5
Is Valid?
Is Script?
Is Witness?
Is Mine?
Is Watch-Only?
Transactions

Since this explorer is database-free, it doesn't natively support address transaction history. However, you can configure it to communicate with one or more ElectrumX servers to build and display this data. In doing so, you should be aware that you'll be trusting those ElectrumX servers. If you configure multiple servers the results obtained from each will be cross-referenced against the others. Communicating with ElectrumX servers will also impact your privacy since the servers will know what addresses you're interested in. If these tradeoffs are acceptable, you can see a list of public ElectrumX servers here:

https://uasf.saltylemon.org/electrum

Node.ValidateAddress

{
    "isvalid": true,
    "address": "121SEj9KCCVT8RMmGfY1wVzWiQbSxWu2i5",
    "scriptPubKey": "76a9140b0d313a0212bd4fd470282c7bb3853dcf0fa51988ac",
    "ismine": false,
    "iswatchonly": false,
    "isscript": false
}

Electrum.Balance

Electrum.History