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Note: When changing a SQLite table's schema, change the table's name (e.g., add _2 or _3) to create a fresh table.
### OpenAI
```ts
import { OpenAI } from "https://esm.town/v/std/openai";
const openai = new OpenAI();
const completion = await openai.chat.completions.create({
  messages: [
    { role: "user", content: "Say hello in a creative way" },

import { OpenAI } from "https://esm.town/v/std/openai";
const openai = new OpenAI();
function parseMarkdown(text: string) {
export async function summarizeEvents(events: string[]) {
  const resp = await openai.chat.completions.create({
    model: "gpt-4.1",
    messages: [{

Note: When changing a SQLite table's schema, change the table's name (e.g., add _2 or _3) to create a fresh table.
### OpenAI
```ts
import { OpenAI } from "https://esm.town/v/std/openai";
const openai = new OpenAI();
const completion = await openai.chat.completions.create({
  messages: [
    { role: "user", content: "Say hello in a creative way" },

import OpenAI from "npm:openai";
const client = new OpenAI();
const resp = await client.completions.create({

    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>OpenAI Realtime API Voice Agent</title>
    <style>
      :root {

const VOICE = "marin";
const OPENAI_API_KEY = Deno.env.get("OPENAI_API_KEY");
if (!OPENAI_API_KEY) {
  throw new Error("🔴 OpenAI API key not configured");
}
export function makeHeaders(contentType?: string) {
  const obj: Record<string, string> = {
    Authorization: `Bearer ${OPENAI_API_KEY}`,
  };
  if (contentType) obj["Content-Type"] = contentType;

sip.post("/", async (c) => {
  // Verify the webhook.
  const OPENAI_SIGNING_SECRET = Deno.env.get("OPENAI_SIGNING_SECRET");
  if (!OPENAI_SIGNING_SECRET) {
    console.error("🔴 webhook secret not configured");
    return c.text("Internal error", 500);
  }
  const webhook = new Webhook(OPENAI_SIGNING_SECRET);
  const bodyStr = await c.req.text();
  let callId: string | undefined;
  // Accept the call.
  const url = `https://api.openai.com/v1/realtime/calls/${callId}/accept`;
  const headers = makeHeaders("application/json");
  const body = JSON.stringify(makeSession());

rtc.post("/", async (c) => {
  // Create the call.
  const url = "https://api.openai.com/v1/realtime/calls";
  const headers = makeHeaders();
  const fd = new FormData();

# hello-realtime
Hello Realtime is a complete OpenAI Realtime application that supports both WebRTC and SIP users.
You can access the app via WebRTC at https://hello-realtime.val.run, or via SIP by calling 425-800-0042.
This demo shows off the new SIP API, the new all-in-one WebRTC API, and the new server-side websocket interface.
If you remix the app, you'll just need to pop in your own OPENAI_API_KEY (from platform.openai.com), and also the OPENAI_SIGNING_SECRET if you want to use the SIP interface.

observer.post("/:callId", async (c) => {
  const callId = c.req.param("callId");
  const url = `wss://api.openai.com/v1/realtime?call_id=${callId}`;
  const ws = new WebSocket(url, { headers: makeHeaders() });
  ws.on("open", () => {