Get transcript

Retrieve existing transcript data

Stream transcript

Generate transcripts in real-time
You can transcribe YouTube, Vimeo, DailyMotion and private media files (.mp4 and .mp3). More formats will be introduced soon.
Transcripts provide accurate, time-stamped text versions of your video content with optional AI formatting for enhanced readability.

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Get transcript

GEThttps://videohighlight.com/api-v1/transcripts

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Path variables

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videoId
string
required
The video ID for the file.

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Request parameters

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type
string
required
The media type of the video.Options: youtube, vimeo, dailymotion, or private
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languageCode
string
required
The language code of the input audio in ISO-639-1 format.Examples: en, en-US, fr, es
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aiFormatted
boolean
required
If true, the transcript will be formatted by the AI.
This is applicable for auto-generated transcripts from video platforms like YouTube. It is not applicable for private videos.

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Response

{
    "transcript_video_id": "92195d82-bff5-4b3b-bc7b-9ae684fa34ba",
    "video_id": "65_PmYipnpk",
    "type": "youtube",
    "language_code": "en",
    "video_title": "Steve Jobs - Courage",
    "video_duration": 214,
    "transcript": {
    "transcript_segments": [
{
    "id": "95cffeb9-52ed-4e6c-a3af-7bcf6b3bd96a",
    "start": "0:00:01",
    "segment": "Apple is a company that has doesn't have the most resources of everybody in the world and the way we've succeeded is by",
    "start_time": 1.34,
    "end_time": 15.24,
    "segment_length": 119
},
{
    "id": "ec56262e-7216-4919-a952-271ee445e34b",
    "start": "0:00:13",
    "segment": "choosing what horses to ride really carefully technically we try to look for these technical vectors that that have a",
    "start_time": 12.99,
    "end_time": 23.34,
    "segment_length": 117
},
{
    "id": "12e6c87a-bb03-47e4-afeb-1a85c03b7e22",
    "start": "0:00:20",
    "segment": "...",
    "start_time": 19.89,
    "end_time": 31.949,
    "segment_length": 110
}
    ]
}
}
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start
string
Human-readable timestamp in HH:MM:SS format
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start_time
number
Start time of the segment in seconds
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end_time
number
End time of the segment in seconds
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segment_length
number
Length of the transcript segment text in characters

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Error responses

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200
OK
The transcript has been successfully retrieved.
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204
NO_CONTENT
The video has not been transcribed yet.
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400
BAD_REQUEST
The request is invalid.
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401
UNAUTHORIZED
The request is unauthorized.
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500
INTERNAL_SERVER_ERROR
The server has encountered an error.
If the video has not been transcribed yet, the response will be 204 with no content. Calling the Stream endpoint is required.

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Stream transcript

POSThttps://videohighlight.com/api-v1/transcripts/stream

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Request body

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video_id
string
required
The unique identifier for the video
​
type
string
required
The media type of the video. Options: youtube, vimeo, dailymotion, or private
​
language_code
string
required
The language code of the input audio in ISO-639-1 format, like en or fr
​
ai_formatted
boolean
required
If true, the transcript will be formatted by the AI. This is applicable for auto-generated transcripts from video platforms like YouTube. It is not applicable for private videos.
​
use_sse
boolean
required
Whether to use Server-Sent Events for streaming
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regenerate
boolean
required
Whether to regenerate the transcript if it already exists
{
    "video_id": "65_PmYipnpk",
    "type": "youtube",
    "language_code": "en",
    "ai_formatted": false,
    "use_sse": true,
    "regenerate": false
}

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Response Types

The streaming endpoint returns different types of messages:

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Download Progress Messages

Download Progress
{
    "type": "download_progress",
    "info": {
        "progress": 0.5,
        "speed": "1.5x",
        "eta": "1m 30s"
    }
}
Download progress shows real-time information about video file processing, including speed and estimated time to completion.

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Error Messages

{
    "type": "error",
    "info": {
    "type": "[ERROR-FILE-DOWNLOAD]",
    "message": "This video can not be downloaded."
}
}

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Transcript Segment Messages

Transcript Segment
{
    "type": "segment",
    "info": {
        "id": "b44f3bba-91ee-4c47-b2c4-c5a132c9e730",
        "start_time": 1.959,
        "end_time": 15.36,
        "text": "apple is a company that has doesn't have the most resources of everybody in the world and um the way we've succeeded is",
        "text_length": 119,
        "timestamp": "0:00:02",
        "asr": true,
        "language_code": "en",
        "progress": 0.2
    }
}
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asr
boolean
Indicates whether this segment was generated using Automatic Speech Recognition
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text_length
number
The character length of the transcript text
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progress
number
Current progress of the transcription process (0.0 to 1.0)

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Semaphore Messages

{
    "type": "semaphore",
    "info": {
    "status": "[DONE]"
}
}

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Transcript Info Messages

Transcript Info
{
    "type": "transcript_info",
    "info": {
        "transcript_video_id": "95cffeb9-52ed-4e6c-a3af-7bcf6b3bd96a",
        "video_id": "65_PmYipnpk",
        "type": "youtube",
        "video_title": "Steve Jobs - Courage",
        "video_duration": 214,
        "language_code": "en",
        "asr": true
    }
}
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video_duration
number
Duration of the video in seconds
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transcript_video_id
string
Unique identifier for this specific transcript

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Progress Messages

Progress Update
{
    "type": "transcript_progress",
    "info": {
        "progress": 0.5,
        "language_code": "en",
        "asr": true
    }
}
Progress messages provide real-time updates on transcription completion percentage and processing status.