Framework Integrations

npm install langchain @langchain/openai

import { tool } from "@langchain/core/tools";
import { z } from "zod";

// 1. Register your agent (one-time, no human required)
const reg = await fetch(`https://agentlair.dev/v1/auth/agent-register`, {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ name: "my-langchain-agent" }),
}).then(r => r.json());
// => { api_key: "al_live_...", email_address: "my-langchain-agent@agentlair.dev" }

// 2. Define email tools
const sendEmail = tool(
  async ({ to, subject, body }) => {
    const res = await fetch(`https://agentlair.dev/v1/email/send`, {
      method: "POST",
      headers: {
        "Authorization": `Bearer ${reg.api_key}`,
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        from: reg.email_address,
        to: [to], subject, text: body,
      }),
    });
    return `Sent! ID: ${(await res.json()).id}`;
  },
  {
    name: "send_email",
    description: "Send email from the agent's inbox",
    schema: z.object({
      to: z.string(), subject: z.string(), body: z.string(),
    }),
  }
);