Supported audio and video file formats

Accepted public audio and video file URLs for the TranscriptFetch API.

Send a public HTTP or HTTPS URL that points directly to an audio or video file. TranscriptFetch downloads the media and returns the spoken content through the same transcript response used for supported social platforms.

Accepted formats

Video files

MP4: https://media.example.com/interview.mp4
M4V: https://media.example.com/interview.m4v
WebM: https://media.example.com/interview.webm
MOV: https://media.example.com/interview.mov
Matroska video: https://media.example.com/interview.mkv
MPEG video: https://media.example.com/interview.mpeg
3GP: https://media.example.com/interview.3gp

Audio files

MP3: https://media.example.com/interview.mp3
M4A: https://media.example.com/interview.m4a
WAV: https://media.example.com/interview.wav
FLAC: https://media.example.com/interview.flac
Ogg audio (.ogg or .oga): https://media.example.com/interview.ogg
Opus: https://media.example.com/interview.opus
AAC: https://media.example.com/interview.aac
MPGA: https://media.example.com/interview.mpga

Endpoints available for this source

POST/api/v2/transcripts/video

Fetch a transcript (YouTube, TikTok, Instagram, or file URL)

Accepted input: video

Open endpoint reference

Availability requirements

The URL must be reachable without cookies, browser login, custom request headers, or access to a private network. Signed URLs are accepted while they remain valid. Internal, loopback, link-local, and private-network destinations are blocked.

Example request

Use the same input with REST or either official SDK.

curl -X POST https://transcriptfetch.com/api/v2/transcripts/video \
  -H "Authorization: Bearer $TRANSCRIPTFETCH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"video":"https://media.example.com/interview.mp3"}'