Nebula AI .NET Integration

The last piece of the puzzle required to create .NET apps and games leveraging a blockchain-powered AI assistant or NPC that also has the power to fully execute transactions.

The best way to understand is to look at examples.

We'll prepare some context for the AI - here, we'll generate a basic PrivateKeyWallet and upgrade it to a SmartWallet on Sepolia.

// Prepare some context
var myChain = 11155111; // Sepolia
var mySigner = await PrivateKeyWallet.Generate(client);
var myWallet = await SmartWallet.Create(mySigner, myChain);
var myContractAddress = "0xe2cb0eb5147b42095c2FfA6F7ec953bb0bE347D8"; // DropERC1155
var usdcAddress = "0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238"; // Sepolia USDC

A one liner creates a Nebula session.

// Create a Nebula session
var nebula = await ThirdwebNebula.Create(client);

You can Chat with Nebula. The Chat method accepts any IThirdwebWallet as an optional parameter, context will automatically be updated.

// Chat, passing wallet context
var response1 = await nebula.Chat(message: "What is my wallet address?", wallet: myWallet);
Console.WriteLine($"Response 1: {response1.Message}");

You may also pass it smart contract context.

// Chat, passing contract context
var response2 = await nebula.Chat(
    message: "What's the total supply of token id 0 for this contract?",
    context: new NebulaContext(contractAddresses: new List<string> { myContractAddress }, chainIds: new List<BigInteger> { myChain })
);
Console.WriteLine($"Response 2: {response2.Message}");

You can have a full on conversation with it with our Chat override accepting multiple messages.

// Chat, passing multiple messages and context
var response3 = await nebula.Chat(
    messages: new List<NebulaChatMessage>
    {
        new($"Tell me the name of this contract: {myContractAddress}", NebulaChatRole.User),
        new("The name of the contract is CatDrop", NebulaChatRole.Assistant),
        new("What's the symbol of this contract?", NebulaChatRole.User),
    },
    context: new NebulaContext(contractAddresses: new List<string> { myContractAddress }, chainIds: new List<BigInteger> { myChain })
);
Console.WriteLine($"Response 3: {response3.Message}");

Chatting is cool, but what if I just want it to do things and stop talking so much?

You can Execute transactions directly with a simple prompt.

// Execute, this directly sends transactions
var executionResult = await nebula.Execute("Approve 1 USDC to vitalik.eth", wallet: myWallet, context: new NebulaContext(contractAddresses: new List<string>() { usdcAddress }));
if (executionResult.TransactionReceipts != null && executionResult.TransactionReceipts.Count > 0)
{
    Console.WriteLine($"Receipt: {executionResult.TransactionReceipts[0]}");
}
else
{
    Console.WriteLine($"Message: {executionResult.Message}");
}

Similarly, Execute can take in multiple messages.

// Batch execute
var batchExecutionResult = await nebula.Execute(
    new List<NebulaChatMessage>
    {
        new("What's the address of vitalik.eth", NebulaChatRole.User),
        new("The address of vitalik.eth is 0xd8dA6BF26964aF8E437eEa5e3616511D7G3a3298", NebulaChatRole.Assistant),
        new("Approve 1 USDC to them", NebulaChatRole.User),
    },
    wallet: myWallet,
    context: new NebulaContext(contractAddresses: new List<string>() { usdcAddress })
);
if (batchExecutionResult.TransactionReceipts != null && batchExecutionResult.TransactionReceipts.Count > 0)
{
    Console.WriteLine($"Receipts: {JsonConvert.SerializeObject(batchExecutionResult.TransactionReceipts, Formatting.Indented)}");
}
else
{
    Console.WriteLine($"Message: {batchExecutionResult.Message}");
}