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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;

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

const MODEL = "gpt-realtime";
const INSTRUCTIONS = `
  Greet the user in English, and thank them for trying the new OpenAI Realtime API.
  Give them a brief summary based on the list below, and then ask if they have any questions.
  Answer questions using the information below. For questions outside this scope,
  - higher audio quality
  - improved handling of alphanumerics (eg, properly understanding credit card and phone numbers)
  - support for the OpenAI Prompts API
  - support for MCP-based tools
  - auto-truncation to reduce context size
//const VOICE = "verse"; //male tenor
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;

# hello-realtime
**Hello Realtime** is a OpenAI Realtime app that supports both WebRTC and SIP
(telephone) users. You can access the app via WebRTC at
[hello-realtime.val.run](https://hello-realtime.val.run), or via SIP by calling 425-800-0042.
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](https://platform.openai.com)), and if you want SIP, the `OPENAI_SIGNING_SECRET`.
## Architecture
   - Browser connects to frontend
   - creates WebRTC offer
   - `/rtc` endpoint handles SDP negotiation with OpenAI
   - observer established to monitor session
2. **SIP Flow**:

# hello-realtime
**Hello Realtime** is a OpenAI Realtime app that supports both WebRTC and SIP
(telephone) users. You can access the app via WebRTC at
[hello-realtime.val.run](https://hello-realtime.val.run), or via SIP by calling 425-800-0042.
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](https://platform.openai.com)), and if you want SIP, the `OPENAI_SIGNING_SECRET`.
## Architecture
   - Browser connects to frontend
   - creates WebRTC offer
   - `/rtc` endpoint handles SDP negotiation with OpenAI
   - observer established to monitor session
2. **SIP Flow**:

import { OpenAI } from "https://esm.town/v/std/openai";
import {
  createSummarization,
/**
 * OpenAI-powered summarization service for grouped tweets
 * Extends the existing sentiment analysis to provide topic-based summaries
 */
      const groupedData = this.groupPostsForSummarization(recentPosts);
      // Generate summary using OpenAI
      const summary = await this.generateSummaryWithAI(
        topic,
  /**
   * Generate summary using OpenAI
   */
  private async generateSummaryWithAI(
    try {
      const openai = new OpenAI();
      const response = await openai.chat.completions.create({
        model: "gpt-3.5-turbo",
        messages: [
      const result = response.choices[0].message.content?.trim();
      if (!result) {
        throw new Error("No response from OpenAI");
      }
      // Validate response structure
      if (!summaryData.mainSummary || !Array.isArray(summaryData.keyPoints)) {
        throw new Error("Invalid response format from OpenAI");
      }
  /**
   * Build the summarization prompt for OpenAI
   */
  private buildSummarizationPrompt(

- Fetch tweets from your Twitter home feed
- Organize tweets by user-defined topics
- Generate AI-powered summaries using OpenAI
- Deliver summaries via email or Discord
- Web dashboard for configuration and viewing summaries

        "ANTHROPIC_API_KEY": "your_key_here",
        "PERPLEXITY_API_KEY": "your_key_here",
        "OPENAI_API_KEY": "OPENAI_API_KEY_HERE",
        "GOOGLE_API_KEY": "GOOGLE_API_KEY_HERE",
        "XAI_API_KEY": "XAI_API_KEY_HERE",
        "OPENROUTER_API_KEY": "OPENROUTER_API_KEY_HERE",
        "MISTRAL_API_KEY": "MISTRAL_API_KEY_HERE",
        "AZURE_OPENAI_API_KEY": "AZURE_OPENAI_API_KEY_HERE",
        "OLLAMA_API_KEY": "OLLAMA_API_KEY_HERE"
      }
- `ANTHROPIC_API_KEY` (Claude models) - **Recommended**
- `PERPLEXITY_API_KEY` (Research features) - **Highly recommended**
- `OPENAI_API_KEY` (GPT models)
- `GOOGLE_API_KEY` (Gemini models)
- `MISTRAL_API_KEY` (Mistral models)

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" },

        "ANTHROPIC_API_KEY": "your_key_here",
        "PERPLEXITY_API_KEY": "your_key_here",
        "OPENAI_API_KEY": "OPENAI_API_KEY_HERE",
        "GOOGLE_API_KEY": "GOOGLE_API_KEY_HERE",
        "XAI_API_KEY": "XAI_API_KEY_HERE",
        "OPENROUTER_API_KEY": "OPENROUTER_API_KEY_HERE",
        "MISTRAL_API_KEY": "MISTRAL_API_KEY_HERE",
        "AZURE_OPENAI_API_KEY": "AZURE_OPENAI_API_KEY_HERE",
        "OLLAMA_API_KEY": "OLLAMA_API_KEY_HERE"
      }
- `ANTHROPIC_API_KEY` (Claude models) - **Recommended**
- `PERPLEXITY_API_KEY` (Research features) - **Highly recommended**
- `OPENAI_API_KEY` (GPT models)
- `GOOGLE_API_KEY` (Gemini models)
- `MISTRAL_API_KEY` (Mistral models)