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Brian

CDP Toolkit

The BrianCDPToolkit is a langchain toolkit that can be imported in your agent to interact with the Brian APIs and execute operations on a Coinbase MPC-wallet.

Usage

You can import directly the BrianCDPToolkit in your agent without the need of using the createBrianCDPAgent function:

import { BrianCDPToolkit } from "@brian-ai/langchain";
 
const brianCDPToolkit = new BrianCDPToolkit({
  apiKey: "your-brian-api-key",
  coinbaseApiKey: "your-coinbase-api-key-name",
  coinbaseApiKeySecret: "your-coinbase-api-key-secret",
});
 
// load the wallet data into a variable
const walletData = JSON.parse(process.env.CDP_WALLET_DATA!);
 
const { tools } = await brianCDPToolkit.setup({ walletData });
 
// import the tools into your own agent

Tools

Every tool inside the BrianCDPToolkit is an object of the following class that extends the DynamicStructuredTool class from langchain:

class BrianCDPTool extends DynamicStructuredTool {
  brianSDK: BrianSDK;
  wallet: Wallet;
 
  constructor(
    fields: DynamicStructuredToolInput & {
      brianSDK: BrianSDK;
      wallet: Wallet;
    }
  ) {
    super(fields);
    this.brianSDK = fields.brianSDK;
    this.wallet = fields.wallet;
  }
}

Balance tool

The balance tool is a tool that allows the agent to retrieve the balance of a native/ERC-20 token of a given wallet.

await balanceTool.invoke({
  token: "USDC",
  chain: "Base",
  address: "orbulo.eth",
});

Bridge tool

The bridge tool is a tool that allows the agent to bridge assets between different chains.

await bridgeTool.invoke({
  fromChain: "Base",
  toChain: "Polygon",
  token: "USDC",
  amount: 100,
});

Deploy NFT tool

The deployNFT tool is a tool that allows the agent to deploy an NFT on your wallet chain.

await deployNFTTool.invoke({
  name: "BrianNFT",
  symbol: "NFT",
  baseURI: "https://brian-nft-uri.com",
});

Deploy token tool

The deployToken tool is a tool that allows the agent to deploy an ERC-20 token on your wallet chain.

await deployTokenTool.invoke({
  name: "BrianToken",
  symbol: "BRT",
  totalSupply: 1000000,
});

Deposit tool

The deposit tool is a tool that allows the agent to deposit a given amount of a token inside a protocol.

await depositTool.invoke({
  tokenIn: "USDC",
  chain: "Ethereum",
  amount: 100,
  protocol: "AAVE",
});

Faucet funds tool

The faucetFunds tool is a tool that allows the agent to request funds from a faucet on Base Sepolia testnet.

await faucetFundsTool.invoke({
  assetId: "ETH",
});

Swap tool

The swap tool is a tool that allows the agent to swap two tokens (native -> native, native -> erc20, erc20 -> native).

It also supports cross-chain swaps and swaps that specifiy an address receiver.

await swapTool.invoke({
  tokenIn: "USDC",
  tokenOut: "ETH",
  amount: 100,
  chain: "Base",
});

Transfer tool

The transfer tool is a tool that allows the agent to transfer a given amount of a token to a given address.

await transferTool.invoke({
  token: "USDC",
  amount: 100,
  receiver: "orbulo.eth",
});

Wallet tool

The wallet tool is a tool that allows the agent to retrieve info about its wallet.

await walletTool.invoke();

Withdraw tool

The withdraw tool is a tool that allows the agent to withdraw a given amount of previously deposited tokens inside a protocol.

await withdrawTool.invoke({
  tokenIn: "USDC",
  chain: "Ethereum",
  amount: 100,
  protocol: "AAVE",
});