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SDK Overview

Oko provides specialized SDKs for different blockchain ecosystems. Choose the right packages for your project.

Get started faster

Prefer a ready-to-run example? Try the Starter Templates.

Installation​

# For Cosmos ecosystem
npm install @oko-wallet/oko-sdk-cosmos

# For Ethereum/EVM chains
npm install @oko-wallet/oko-sdk-eth

# For Solana/SVM chains
npm install @oko-wallet/oko-sdk-svm

# Core SDK (for custom integration)
npm install @oko-wallet/oko-sdk-core

# For React Native
npm install @oko-wallet/oko-sdk-core-react-native

Quick Setup​

Cosmos​

import { OkoCosmosWallet } from "@oko-wallet/oko-sdk-cosmos";

const initRes = OkoCosmosWallet.init(config);
if (!initRes.success) {
  throw new Error(`Cosmos wallet initialization failed: ${initRes.err}`);
}

const cosmosWallet = initRes.data;

Ethereum​

import { OkoEthWallet } from "@oko-wallet/oko-sdk-eth";

const initRes = OkoEthWallet.init(config);
if (!initRes.success) {
  throw new Error(`Eth wallet initialization failed: ${initRes.err}`);
}

const ethWallet = initRes.data;
const provider = await ethWallet.getEthereumProvider();

Solana​

import { OkoSvmWallet } from "@oko-wallet/oko-sdk-svm";

const initRes = OkoSvmWallet.init({
  ...config,
  chain_id: "solana:mainnet",
});
if (!initRes.success) {
  throw new Error(`Solana wallet initialization failed: ${initRes.err}`);
}

const svmWallet = initRes.data;
await svmWallet.connect();

React Native​

import { Button } from "react-native";
import {
  OkoWalletProvider,
  useOkoWallet,
} from "@oko-wallet/oko-sdk-core-react-native";

// Wrap your app with the provider
function App() {
  return (
    <OkoWalletProvider apiKey="your-api-key">
      <WalletScreen />
    </OkoWalletProvider>
  );
}

// Use the hook in any component
function WalletScreen() {
  const wallet = useOkoWallet();

  const handleSignIn = async () => {
    await wallet.signIn("google");
  };

  return <Button title="Sign in with Google" onPress={handleSignIn} />;
}

Self-Hosting Configuration​

When running your own infrastructure, set sdk_endpoint to your self-hosted oko_attached URL:

const config = {
  api_key: "your-api-key",
  sdk_endpoint: "https://your-oko-attached.example.com",
};

The default endpoint (https://attached.oko.app) is not available for self-hosted deployments.

Next Steps​