Deepgram Not Working?

Pre-recorded transcription (REST API)

# "Token" not "Bearer" — this is the #1 auth mistake
curl -X POST "https://api.deepgram.com/v1/listen?model=nova-3&smart_format=true&language=en-US" \
  -H "Authorization: Token YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://your-public-url.com/audio.mp3"}'

# Upload a local file instead:
curl -X POST "https://api.deepgram.com/v1/listen?model=nova-3&smart_format=true" \
  -H "Authorization: Token YOUR_API_KEY" \
  -H "Content-Type: audio/mp3" \
  --data-binary @/path/to/audio.mp3

Real-time streaming (WebSocket, Node.js SDK)

import { createClient } from "@deepgram/sdk";

const deepgram = createClient("YOUR_API_KEY");

const connection = deepgram.listen.live({
  model: "nova-3",        // nova-3 for best English accuracy
  language: "en-US",
  smart_format: true,     // punctuation + paragraphs
  interim_results: true,  // get partial results
});

connection.on("open", () => {
  // Start sending audio chunks (Buffer / ArrayBuffer)
  connection.send(audioChunk);
});

connection.on("transcript", (data) => {
  const transcript = data.channel.alternatives[0].transcript;
  if (data.is_final) console.log("Final:", transcript);
});

Aura TTS (text-to-speech)

import { createClient } from "@deepgram/sdk";
import { createWriteStream } from "fs";

const deepgram = createClient("YOUR_API_KEY");

const response = await deepgram.speak.request(
  { text: "Hello, this is Deepgram Aura TTS." },
  { model: "aura-asteria-en" }  // or aura-orpheus-en, aura-helios-en
);

const stream = await response.getStream();
const fileWriter = createWriteStream("output.mp3");
for await (const chunk of stream) {
  fileWriter.write(chunk);
}
fileWriter.end();