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πŸ”‘ Keystation - decentralized keychain-bassed authenticator enables browsing blockchains built with Cosmos SDK
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.github/ISSUE_TEMPLATE Update issue templates Aug 29, 2019
docs Add docs folder Aug 29, 2019
example Updated lcd url Dec 13, 2019
www applied the 0.5.1 version of CosmosJS. Jan 13, 2020 updated README(newStdMsg) Jan 13, 2020
app.yaml Back to cosmoshub-2 on README. Added go mod file. Oct 8, 2019
go.mod Back to cosmoshub-2 on README. Added go mod file. Oct 8, 2019
main.go Supported multiple keychain accounts Oct 10, 2019
model.go Supported multiple keychain accounts Oct 10, 2019
service.go Support Kava-2. Used the same version as CosmosJS. Nov 18, 2019
util.go Migrated Appengine API to go111 Oct 1, 2019

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πŸ‘½ Developed / Developing by Cosmostation


Keystation is a decentralized keychain-based authenticator that DOES NOT require any installation. User keys are securely stored in the web browser Keychain, allowing for users to conveniently sign transactions for networks and decentralized applications built with the Cosmos SDK. Keystation can be used as a secure and convenient authentication and key management tool for web login, decentralized exchanges, decentralized applications, and various services built with the Cosmos SDK.

keystation1 keystation2 keystation3


<script src=""></script>


// initializing configuration
var keystation = new Keystation();
keystation.client = "YOUR_WEB_URL";
keystation.lcd = "";
keystation.path = "44/118/0/0/0";

// The account parameter is required for users having multiple keychain accounts.
var keystationAccount = "";
// open popup window for sign-in
var prefix = "cosmos";  // Cosmos prefix: cosmos, Iris prefix: iaa
var popup = keystation.openWindow("signin", prefix);
// generate a transaction
var txJson = {"account_number":"18012","chain_id":"cosmoshub-3","fee":{"amount":[{"amount":"5000","denom":"uatom"}],"gas":"200000"},"memo":"","msgs":[{"type":"cosmos-sdk/MsgSend","value":{"amount":[{"amount":"10000","denom":"uatom"}],"from_address":"cosmos1z67fshyr48pa9a6htdz4qd0zullfk6y0fgvxv7","to_address":"cosmos10nv3yj0jdxf02vxyc0tavf97fdvppdth6wmcn3"}}],"sequence":"24"};

var txJsonStr = JSON.stringify(txJson);
var popup = keystation.openWindow("transaction", txJsonStr, keystationAccount);
// add an EventListener
window.addEventListener("message", function(e) {
    if (e.origin != "") return;
    // : User's keychain account. Remember this account!
    keystationAccount =;
} , false);

If the user is log in as Alice, he or she should use Alice account to sign transaction.

Supporting Transaction Message Types

You can find currently supporting meesage types in our CosmosJS library

How to Create txJson

// CosmosJS supports to create tx for Cosmos
cosmos.getAccounts(address).then(data => {
	let stdSignMsg = cosmos.newStdMsg({
        msgs: [
                type: "cosmos-sdk/MsgSend",
                value: {
                    amount: [
                            amount: String(100000),
                            denom: "uatom"
                    from_address: address,
                    to_address: "cosmos18vhdczjut44gpsy804crfhnd5nq003nz0nf20v"
        chain_id: chainId,
        fee: { amount: [ { amount: String(5000), denom: "uatom" } ], gas: String(200000) },
        memo: "",
        account_number: String(data.result.value.account_number),
        sequence: String(data.result.value.sequence)
	console.log(stdSignMsg.json);   // txJson


Keystation stores user mnemonic phrase on a key management system, Keychain in Chrome and Safari. A user is the only one who can access the keychain, and no third party is granted access. User mnemonic phrase is encrypted with AES algorithm for higher security before being stored. A PIN set by the user is required in order to access the encrypted mnemonic phrase.


We welcome any type of issues. Please provide information in detail when you post issues or bugs.


We welcome any contributions, suggestions, improvements, or feature requests.

There will be that describes rules and procedure. It will be updated soon.

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