feat: XMTP Client

[humanagent]

xmtp-agents is a repo for building agents that communicate in a secure and interoperable way over the XMTP network.

Why XMTP?

• End-to-end & compliant: Data is encrypted in transit and at rest, meeting strict security and regulatory standards.
• Open-source & trustless: Built on top of the MLS protocol, it replaces trust in centralized certificate authorities with cryptographic proofs.
• Privacy & metadata protection: Offers anonymous or pseudonymous usage with no tracking of sender routes, IPs, or device and message timestamps.
• Decentralized: Operates on a peer-to-peer network, eliminating single points of failure.
• Multi-tenant: Allows multi-agent multi-human confidential communication over MLS group chats.

See FAQ for more detailed information.

Overview

These are the steps to initialize the XMTP listener and send messages.

• WALLET_KEY: The private key of the wallet that will be used to send or receive messages.

import { xmtpClient } from "@xmtp/agent-starter";

async function main() {
  const client = await xmtpClient({
    walletKey: process.env.WALLET_KEY as string,
    onMessage: async (message: Message) => {
        console.log(`Decoded message: ${message.content.text}`);
        console.log(`from ${message.sender.address}`)

        // Your AI model response
        const response = await api("Hi, how are you?");

        //Send text message
        await client.send({
          message: response,
          originalMessage: message,
        });
      };
  });

  console.log("XMTP client is up and running on address " + client.address);
}

main().catch(console.error);

Web inbox

Interact with the XMTP protocol using xmtp.chat the official web inbox for developers using the latest version powered by MLS.

Warning

This React app isn't a complete solution. For example, the list of conversations doesn't update when new messages arrive in existing conversations.

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[humanagent]

Hey @shakkernerd ! I finalized the xmtp integration. Any feedback on how to proceed?

[shakkernerd]

Hey @shakkernerd ! I finalized the xmtp integration. Any feedback on how to proceed?

HI @humanagent Thanks for doing this. There are some conflicts in agent's package.json and index.ts files that needs to be resolved.
Apart from that, it looks good to me.