Ad Library · Guide

How to get a Ad Library facebook ad transcript

TL;DR

To get a Ad Library facebook ad transcript, sign up for a free Captapi key, then send one GET request to /v1/ad-library/facebook/ad-transcript with your input. You get clean JSON back in seconds for 17 credits per call — no OAuth, scraping or platform SDKs. Extract timestamped transcripts from any public Ad Library video in a single request.

Get your free API key API reference

How to get a Ad Library facebook ad transcript (step by step)

1
Get a free API key
Create a free Captapi account (100 credits, no card) and generate an API key from the dashboard.
2
Call the Facebook Ad Transcript API
Send an authenticated GET request to /v1/ad-library/facebook/ad-transcript with your input. No OAuth, no scraping setup.
3
Read the JSON response
Parse the clean JSON response. Results are cached for 24 hours, so repeat calls are free.

Code example

curl "https://api.captapi.com/v1/ad-library/facebook/ad-transcript?url=https%3A%2F%2Fadstransparency.google.com%2F" \
  -H "Authorization: Bearer capt_live_..."

What the response looks like

{
  "success": true,
  "cached": false,
  "creditsUsed": 17,
  "data": {
    "transcript": "Hey everyone, welcome back to the channel. Today we're breaking down structured data APIs.",
    "wordCount": 1240,
    "segments": 86,
    "transcriptSegments": [
      {
        "text": "Hey everyone, welcome back to the channel.",
        "start": 0,
        "duration": 4.12,
        "timestamp": "00:00"
      },
      {
        "text": "Today we're breaking down structured data APIs.",
        "start": 4.12,
        "duration": 4.28,
        "timestamp": "00:04"
      }
    ]
  }
}

Request parameters

Name	Type	Required	Description
url	string	Yes	Meta Ad Library ad URL or ad ID.

Frequently asked questions

What does the Facebook Ad Transcript API do?

The Facebook Ad Transcript API lets you extract the full, timestamped transcript from a public Ad Library video using one GET request to /v1/ad-library/facebook/ad-transcript. It returns clean JSON — no OAuth or scraping setup required.

How many credits does the Facebook Ad Transcript API cost?

Each successful call costs 17 credits. Responses are cached for 24 hours, and cached results cost 0 credits. Failed or empty results are never charged.

Do I need a Ad Library API key or OAuth?

No. A single Captapi key works across every platform Captapi supports — YouTube, TikTok, Instagram, Facebook, Twitter/X, Reddit, Threads, Bluesky, Pinterest, LinkedIn, and Rumble. We handle proxies, rate limits, retries, and authentication for you.

What if the Ad Library video has no captions?

When no captions are available, Captapi transcribes the audio with AI (Whisper) automatically, so you still get a usable transcript.

Is the Facebook Ad Transcript API suitable for production use?

Yes. It is a stable REST endpoint with predictable JSON, automatic retries, and a shared 24-hour cache. Use it for RAG pipelines, analytics, monitoring, and content automation.

Ready to get a Ad Library facebook ad transcript?

Start free with 100 credits — no credit card required.

Get your free API key