Transcriptions

curl --request POST \
  --url https://api.linqalpha.com/v2/transcriptions/uploads \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "file_name": "bam-call.mp3",
  "content_type": "audio/mpeg"
}
'

import requests

url = "https://api.linqalpha.com/v2/transcriptions/uploads"

payload = {
    "file_name": "bam-call.mp3",
    "content_type": "audio/mpeg"
}
headers = {
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({file_name: 'bam-call.mp3', content_type: 'audio/mpeg'})
};

fetch('https://api.linqalpha.com/v2/transcriptions/uploads', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.linqalpha.com/v2/transcriptions/uploads",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'file_name' => 'bam-call.mp3',
    'content_type' => 'audio/mpeg'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($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://api.linqalpha.com/v2/transcriptions/uploads"

	payload := strings.NewReader("{\n  \"file_name\": \"bam-call.mp3\",\n  \"content_type\": \"audio/mpeg\"\n}")

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

	req.Header.Add("X-API-KEY", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.linqalpha.com/v2/transcriptions/uploads")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"file_name\": \"bam-call.mp3\",\n  \"content_type\": \"audio/mpeg\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.linqalpha.com/v2/transcriptions/uploads")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"file_name\": \"bam-call.mp3\",\n  \"content_type\": \"audio/mpeg\"\n}"

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

{
  "error": null,
  "payload": {
    "upload_id": "8d2e6c1a-4f0b-4d7e-9a3c-2b1f5e6a7c90",
    "presigned_url": "https://linq-vertex-documents.s3.amazonaws.com/transcriptions/<org_id>/uploads/<upload_id>/input/audio.mp3?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Expires=3600&...",
    "expiration_seconds": 3600
  }
}

POST

transcriptions

uploads

Transcriptions — Get Upload URL

curl --request POST \
  --url https://api.linqalpha.com/v2/transcriptions/uploads \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "file_name": "bam-call.mp3",
  "content_type": "audio/mpeg"
}
'

import requests

url = "https://api.linqalpha.com/v2/transcriptions/uploads"

payload = {
    "file_name": "bam-call.mp3",
    "content_type": "audio/mpeg"
}
headers = {
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({file_name: 'bam-call.mp3', content_type: 'audio/mpeg'})
};

fetch('https://api.linqalpha.com/v2/transcriptions/uploads', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.linqalpha.com/v2/transcriptions/uploads",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'file_name' => 'bam-call.mp3',
    'content_type' => 'audio/mpeg'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($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://api.linqalpha.com/v2/transcriptions/uploads"

	payload := strings.NewReader("{\n  \"file_name\": \"bam-call.mp3\",\n  \"content_type\": \"audio/mpeg\"\n}")

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

	req.Header.Add("X-API-KEY", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.linqalpha.com/v2/transcriptions/uploads")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"file_name\": \"bam-call.mp3\",\n  \"content_type\": \"audio/mpeg\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.linqalpha.com/v2/transcriptions/uploads")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"file_name\": \"bam-call.mp3\",\n  \"content_type\": \"audio/mpeg\"\n}"

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

{
  "error": null,
  "payload": {
    "upload_id": "8d2e6c1a-4f0b-4d7e-9a3c-2b1f5e6a7c90",
    "presigned_url": "https://linq-vertex-documents.s3.amazonaws.com/transcriptions/<org_id>/uploads/<upload_id>/input/audio.mp3?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Expires=3600&...",
    "expiration_seconds": 3600
  }
}

Step 1 of the historical-audio transcription flow. Returns a signed S3 PUT URL for one audio file. Nothing is processed until you submit the returned upload_id to POST /v2/transcriptions.

Flow

POST /v2/transcriptions/uploads → { upload_id, presigned_url, expiration_seconds }
PUT the audio bytes to presigned_url with a Content-Type header matching the one you declared
POST /v2/transcriptions with upload_id (+ optional target_language) → 202 { job_id, status: "queued" }
GET /v2/transcriptions/{job_id} every 30–60 s until status is succeeded or failed

curl --request POST \
  --url 'https://api.linqalpha.com/v2/transcriptions/uploads' \
  --header 'X-API-KEY: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{"file_name":"bam-call.mp3","content_type":"audio/mpeg"}'

Request fields: file_name and content_type, both required, exactly as on the Vault route. The uploaded object’s size (max 2 GB) and type are verified from S3 when you submit the job. Then upload the file:

curl --request PUT \
  --header 'Content-Type: audio/mpeg' \
  --upload-file bam-call.mp3 \
  '<presigned_url>'

Same PUT convention as POST /v2/vault/presigned_url: the URL is single-object and expires after expiration_seconds (1 hour), and the PUT request’s Content-Type must match the content_type you declared because it is bound into the signature. Supported types: audio/mpeg (mp3), audio/mp4 and audio/x-m4a (m4a), video/mp4 (mp4). Convert WAV, FLAC, OGG or WebM recordings to one of these before uploading. Maximum size 2 GB.

Authorizations

X-API-KEY

string

header

required

Body

application/json

file_name

string

required

Example:

"bam-call.mp3"

content_type

enum<string>

required

MIME type of the audio (mp3, m4a or mp4; convert wav/flac/ogg/webm first). Bound into the presigned URL signature; the PUT must send the same Content-Type.

Available options:

audio/mpeg,

audio/mp4,

audio/x-m4a,

video/mp4

Example:

"audio/mpeg"

Response

Signed upload URL issued

error

object | null

required

Show child attributes

payload

object

required

Show child attributes

MCP

Basic

Analytics V2

Evaluations

RMS (On request)

Briefing

Sync Status

Meeting Agent

Transcriptions — Get Upload URL

Flow

Authorizations

Body

Response

​Flow

Authorizations

Body

Response

Flow