---
title: "Fetch YouTube video transcript"
method: POST
path: "/v1/youtube/transcript"
tags: ["YouTube"]
---

# Fetch YouTube video transcript

`POST /v1/youtube/transcript`

Fetches the timestamped transcript for a YouTube video. Returns all transcript segments and the list of languages available. Provide a full YouTube URL or a bare 11-character video ID.

<span>⚡ <strong>Rate limit:</strong> 300 requests per 1 minute</span>

<span>💰 <strong>Cost:</strong> 2 credits per request&nbsp;<span title="Pricing shown is default pricing. Actual pricing may vary.">ⓘ</span></span>

## Request body

- object
  - `apiKey` string, required — Your Fiber API key
  - `videoId` string, required — YouTube video ID or full URL. Accepts a bare 11-character ID (e.g. '094y1Z2wpJg') or a full YouTube URL (e.g. 'https://www.youtube.com/watch?v=094y1Z2wpJg').
  - `languageCode` string, nullable — Transcript BCP-47 language code (e.g. 'en' for English, 'es' for Spanish, 'fr' for French, 'pt-BR' for Brazilian Portuguese). Omit to receive the default language transcript.

## Response `200`

Default Response

- object
  - `output` object, required
    - `segments` object[], nullable, required — Ordered list of transcript segments with timestamps.
      - `text` string, required — The transcript text for this segment.
      - `startSeconds` number, required — Start time of the segment in seconds.
      - `durationSeconds` number, required — Duration of the segment in seconds.
    - `availableLanguages` object[], required — All languages for which a transcript is available for this video.
      - `code` string, required — BCP-47 language code (e.g. 'en' or 'pt-BR').
      - `name` string, required — Human-readable language name (e.g. 'English' or 'Portuguese (Brazil)').
  - `chargeInfo` union, required
    - object — Credits were charged immediately for this operation
      - `method` 'charged-now', required
      - `creditsCharged` number, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — Credits will be charged after the operation completes
      - `method` 'charging-later', required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — Credits that were charged for an asynchronous operation
      - `method` 'charged-for-async-process', required
      - `creditsCharged` number, required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — No credits were charged for this operation
      - `method` 'free', required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — Credits were refunded for this operation
      - `method` 'credits-refunded', required
      - `creditsRefunded` number, required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
  - `warnings` object[], nullable — Warnings about extraneous fields in request
    - `field` string, required — Full path to extraneous field (e.g., 'searchParams.ExtraField')
    - `message` string, required — Warning message
  - `advice` string[], nullable — Tips, recommendations, and suggestions for using this API effectively.

## Other responses

- `400` — Default Response
- `401` — Default Response
- `402` — Default Response
- `403` — Default Response
- `404` — Default Response
- `422` — Default Response
- `429` — Default Response
- `500` — Default Response
- `503` — Default Response

---

[API](https://skmtc.net/fiber/apis/fiber-ai-api.md) · [All operations](https://skmtc.net/fiber/apis/fiber-ai-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fiber/fiber-ai-api/versions/0c537984b99f/schema)