---
title: "Facebook Ad Copy API"
method: GET
path: "/v1/ad-library/facebook/ad-transcript"
tags: ["Facebook Ad Library"]
---

# Facebook Ad Copy API

`GET /v1/ad-library/facebook/ad-transcript`

## Request

- Base URL: `https://api.captapi.com`
- URL: `https://api.captapi.com/v1/ad-library/facebook/ad-transcript`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`

Written creative copy from a Meta ad — headline, body, CTA, landing URL.

Returns the ad's written copy — headline, body text, CTA and landing URL. Meta does not expose ad audio, so this is not a speech transcript. Paste a Meta Ad Library ad URL or ad ID. There is no speaker, start, duration, timestamp, or segments array (those belong on instagram/transcript and tiktok/transcript). The path /ad-transcript is kept for compatibility. Always 2 credits.

Docs: https://captapi.com/apis/facebook-ad-library-ad-transcript

## Query parameters

- `url` string, required
- `cache` boolean

## Response `200`

Success. The data object for this endpoint.

- object
  - `success` unknown, required
  - `data` object, required
    - `platform` string: Platform identifier for this response (matches the endpoint's platform).
    - `url` string: Canonical URL of the item.
    - `adId` string: Ad id. Example: "317161109571794".
    - `transcript` string: Complete text transcript (file-upload endpoints). Timed caption/ASR endpoints use text instead.
    - `transcriptSegments` object[]
      - `speaker` string: Speaker label for the segment.
      - `text` string: Body copy of the creative. Not spoken audio.
      - `start` integer: Start time in seconds.
      - `duration` integer: Duration when present — prefer durationSeconds (number) and durationText on endpoints that expose both.
      - `timestamp` string: Human-readable timestamp (MM:SS format).
    - `wordCount` integer: Total number of words in the transcript (file-upload endpoints).
    - `segments` integer: Timed caption/ASR: array of {text,startMs,endMs}. File-upload video-transcript: segment count. Sponsor endpoints: sponsor segment list.
    - `advertiser` object
      - `id` string: Id of this advertiser item.
      - `name` string: Name of this advertiser item.
      - `url` string: Canonical URL of the item.
      - `logo` string: Logo image URL.

## Other responses

- `400`: Bad request: wrong platform URL, unknown endpoint, or an invalid parameter value. Not billed.
- `401`: Missing, invalid or revoked API key. Not billed.
- `402`: Not enough credits for this request. Not billed.
- `404`: The resource does not exist or is not public. Not billed.
- `422`: A required parameter is missing or has the wrong type. Not billed.
- `429`: Rate limit reached. Wait for Retry-After seconds. Not billed.
- `502`: The platform could not be reached or returned nothing usable. Retryable, not billed. 503 and 504 use the same envelope.

---

[API](https://skmtc.dev/captapi/apis/captapi-api.md) · [All operations](https://skmtc.dev/captapi/apis/captapi-api/llms.txt) · [OpenAPI document](https://skmtc.dev/captapi/apis/captapi-api/revisions/c9b9ac5ff1bd?raw)