Updated xmtp chatbot to use CDP v2 wallets and new xmtp/agent-sdk

typescript/.changeset/red-goats-camp.md

@@ -0,0 +1,5 @@
+---
+"@coinbase/agentkit": patch
+---
+
+Updated xmtp chatbot to use CDP v2 wallets and new xmtp/agent-sdk

typescript/examples/langchain-xmtp-chatbot/.env-local

@@ -1,6 +1,10 @@
 OPENAI_API_KEY=
 CDP_API_KEY_ID=
 CDP_API_KEY_SECRET=
-WALLET_KEY=
-ENCRYPTION_KEY=
+CDP_WALLET_SECRET=
+
+XMTP_WALLET_KEY=
+XMTP_DB_ENCRYPTION_KEY=
 XMTP_ENV=dev
+
+NETWORK_ID="base-sepolia"

typescript/examples/langchain-xmtp-chatbot/README.md

@@ -6,14 +6,28 @@ This example demonstrates an agent setup on XMTP Network with access to the full
 
 - "Transfer a portion of your ETH to a random address"
 - "What is the price of BTC?"
-- "Deploy an NFT that will go super viral!"
-- "Deploy an ERC-20 token with total supply 1 billion"
+- "Swap 1 USDC to ETH" (base-mainnet only)
+- "List x402 services"
+
+## Special Commands
+
+### `/fund` Command - Send ETH to the agent
+
+Send ETH from your wallet to the agent's wallet using the `/fund` command.
+Review transaction details, click submit and then approve transaction in your connected browser wallet.
+
+**Usage:**
+- `/fund <amountInEth>` - Send ETH to the agent
+
+**Example:**
+- `/fund 0.01` - Send 0.01 ETH to the agent
+
 
 ## Prerequisites
 
 ### Checking Node Version
 
-Before using the example, ensure that you have the correct version of Node.js installed. The example requires Node.js 18 or higher. You can check your Node version by running:
+Before using the example, ensure that you have the correct version of Node.js installed. The example requires Node.js 20 or higher. You can check your Node version by running:
 
 ```bash
 node --version
@@ -32,34 +46,48 @@ This will automatically install and use the latest version of Node.
 You'll need the following API keys:
 - [CDP API Key](https://portal.cdp.coinbase.com/access/api)
 - [OpenAI API Key](https://platform.openai.com/docs/quickstart#create-and-export-an-api-key)
+- [Generate Wallet Secret](https://portal.cdp.coinbase.com/products/wallet-api)
 
 Once you have them, rename the `.env-local` file to `.env` and make sure you set the API keys to their corresponding environment variables:
 
-- "CDP_API_KEY_ID"
-- "CDP_API_KEY_SECRET"
-- "OPENAI_API_KEY"
-- "XMTP_ENV" # defaults to "dev"
-- "WALLET_KEY" # Optional, use `npm run gen:keys` to generate a random wallet key
-- "ENCRYPTION_KEY" # Optional, use `npm run gen:keys` to generate a random encryption key
+**Required:**
+- `OPENAI_API_KEY` - Your OpenAI API key
+- `CDP_API_KEY_ID` - Your CDP API key ID
+- `CDP_API_KEY_SECRET` - Your CDP API key secret
+- `CDP_WALLET_SECRET` - Your CDP wallet secret (for deterministic wallet generation)
+- `XMTP_WALLET_KEY` - Private key for XMTP agent (use `pnpm run gen:keys` to generate)
+- `XMTP_DB_ENCRYPTION_KEY` - Database encryption key for XMTP (use `pnpm run gen:keys` to generate)
+
+**Optional:**
+- `NETWORK_ID` - Network to use (defaults to "base-sepolia")
+- `XMTP_ENV` - XMTP environment: "local", "dev", or "production" (defaults to "dev")
+- `RPC_URL` - Custom RPC URL for blockchain interactions
+
+You can generate XMTP keys by running:
+```bash
+pnpm run gen:keys
+```
 
 ## Running the example
 
 From the root directory, run:
 
 ```bash
-npm install
-npm run build
+pnpm install
+pnpm build
 ```
 
-This will install the dependencies and build the packages locally. The chatbot example uses the local `@coinbase/agentkit-langchain`, `@coinbase/agentkit`, and `@xmtp/node-sdk` packages. If you make changes to the packages, you can run `npm run build` from root again to rebuild the packages, and your changes will be reflected in the chatbot example.
+This will install the dependencies and build the packages locally. The chatbot example uses the local `@coinbase/agentkit-langchain` and `@coinbase/agentkit` packages. If you make changes to the packages, you can run `pnpm build` from root again to rebuild the packages, and your changes will be reflected in the chatbot example.
 
 Now from the `typescript/examples/langchain-xmtp-chatbot` directory, run:
 
 ```bash
-npm start
+pnpm start
 ```
 
-Select "1. chat mode" and start telling your Agent to do things onchain!
+The agent will start and listen for messages on the XMTP network. You can interact with it by:
+1. Visiting the URL displayed in the console (e.g., `http://xmtp.chat/dm/0x...?env=dev`)
+2. Sending messages to the agent's address via any XMTP client
 
 ## License