curl -X POST https://dictation.assemblyai.com/v1/transcribe \
  -H 'Authorization: <YOUR_API_KEY>' \
  -F 'audio=@recording.mp3;type=audio/mpeg'

import requests

with open("recording.mp3", "rb") as f:
    audio = f.read()

response = requests.post(
    "https://dictation.assemblyai.com/v1/transcribe",
    headers={"Authorization": "<YOUR_API_KEY>"},
    files={
        "audio": ("recording.mp3", audio, "audio/mpeg"),
        # Optional; omit for the defaults.
        "config": (None, '{"language_codes": ["en"]}', "application/json"),
    },
    timeout=90,
)
response.raise_for_status()
result = response.json()

print(result["text"])          # verbatim transcript
print(result["llm_response"])  # default cleanup rewrite

import { readFileSync } from "fs";

const audio = readFileSync("recording.mp3");
const form = new FormData();
form.append("audio", new Blob([audio], { type: "audio/mpeg" }), "recording.mp3");

const response = await fetch(
  "https://dictation.assemblyai.com/v1/transcribe",
  {
    method: "POST",
    headers: { Authorization: "<YOUR_API_KEY>" },
    body: form,
  }
);

if (!response.ok) {
  const error = await response.json();
  throw new Error(error.error || error.detail);
}

const result = await response.json();
console.log(result.text);         // verbatim transcript
console.log(result.llm_response); // default cleanup rewrite

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://dictation.assemblyai.com/v1/transcribe",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: audio/wav\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"config\"\r\nContent-Type: application/json\r\n\r\n{\r\n  \"sample_rate\": 123,\r\n  \"channels\": 123,\r\n  \"language_codes\": [],\r\n  \"stt_prompt\": \"<string>\",\r\n  \"keyterms_prompt\": [\r\n    \"<string>\"\r\n  ],\r\n  \"llm_instruction\": \"<string>\"\r\n}\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: multipart/form-data; boundary=---011000010111000001101001"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://dictation.assemblyai.com/v1/transcribe"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: audio/wav\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"config\"\r\nContent-Type: application/json\r\n\r\n{\r\n  \"sample_rate\": 123,\r\n  \"channels\": 123,\r\n  \"language_codes\": [],\r\n  \"stt_prompt\": \"<string>\",\r\n  \"keyterms_prompt\": [\r\n    \"<string>\"\r\n  ],\r\n  \"llm_instruction\": \"<string>\"\r\n}\r\n-----011000010111000001101001--")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "<api-key>")
	req.Header.Add("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://dictation.assemblyai.com/v1/transcribe")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: audio/wav\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"config\"\r\nContent-Type: application/json\r\n\r\n{\r\n  \"sample_rate\": 123,\r\n  \"channels\": 123,\r\n  \"language_codes\": [],\r\n  \"stt_prompt\": \"<string>\",\r\n  \"keyterms_prompt\": [\r\n    \"<string>\"\r\n  ],\r\n  \"llm_instruction\": \"<string>\"\r\n}\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://dictation.assemblyai.com/v1/transcribe")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'multipart/form-data; boundary=---011000010111000001101001'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: audio/wav\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"config\"\r\nContent-Type: application/json\r\n\r\n{\r\n  \"sample_rate\": 123,\r\n  \"channels\": 123,\r\n  \"language_codes\": [],\r\n  \"stt_prompt\": \"<string>\",\r\n  \"keyterms_prompt\": [\r\n    \"<string>\"\r\n  ],\r\n  \"llm_instruction\": \"<string>\"\r\n}\r\n-----011000010111000001101001--"

response = http.request(request)
puts response.read_body

{
  "text": "<string>",
  "words": [
    {
      "text": "<string>",
      "confidence": 123
    }
  ],
  "confidence": 123,
  "audio_duration_ms": 123,
  "session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "llm_response": "<string>",
  "llm_error": "timeout",
  "request_time_ms": 123,
  "auth_time_ms": 123,
  "sync_time_ms": 123
}

{
  "error": "<string>",
  "error_code": "<string>"
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>"
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>"
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>"
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>"
}

{
  "error": "<string>",
  "error_code": "<string>"
}

{
  "error": "<string>",
  "error_code": "<string>"
}

{
  "error": "<string>",
  "error_code": "<string>"
}