Ad Library

GET /v1/ad-library/facebook/ad-details

Facebook Ad Details API

Get a Meta Ad Library ad — creative text, media, advertiser, and delivery fields as structured JSON.

2 credits per request

Try in Playground Get your API key — free Read the docs

TL;DR

Get a Meta Ad Library ad — creative text, media, advertiser, and delivery fields as structured JSON. The Facebook Ad Details API (Ad Library) is a single authenticated GET request to /v1/ad-library/facebook/ad-details that responds with clean JSON and costs 2 credits. Pass cache=true for a free 24h cache hit; default is always fresh. Start with 100 free credits — no credit card.

What is the Facebook Ad Details API?

Paste a Meta Ad Library ad URL or ad ID and get the creative as clean JSON: body text, headline, CTA, landing URL, media, advertiser, and delivery signals when available. Flat 2 credits per call.

What you get

Facebook Ad Details fields as clean structured JSON
IDs, URLs, and titles where the platform exposes them
Engagement or popularity signals when available
Stable IDs for joining with other endpoints

Try it

Open in Playground

Fill in the parameters below and copy a ready-to-run request, or open the live Playground to run it against your account (no API key paste).

Parameters

url*stringMeta Ad Library ad URL or ad ID. The URL platform must match this endpoint's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble.cacheoptionalbooleanSet true to serve from the 24h response cache. Default false — always fetch fresh data.

API keyoptionalPaste your key to get a ready-to-run snippet. It stays in your browser.Sign in to run live

curl "https://api.captapi.com/v1/ad-library/facebook/ad-details?url=https%3A%2F%2Fwww.facebook.com%2Fads%2Flibrary%2F%3Fid%3D317161109571794" \
  -H "Authorization: Bearer capt_live_..."
# or: -H "x-api-key: capt_live_..."

Edit the parameters and the code updates instantly. Switch languages and hit copy.

Example response

{
  "success": true,
  "data": {
    "platform": "facebook_ad_library",
    "id": "317161109571794",
    "url": "https://www.facebook.com/ads/library/?id=317161109571794",
    "text": "The Voting Information Center—one-tap voting registration information from election experts and authorities in one place.",
    "headline": "Voting Information Center",
    "cta": "Learn more",
    "landingUrl": "http://facebook.com/votinginformationcenter",
    "adFormat": "VIDEO",
    "firstShown": "2020-09-22T07:00:00.000Z",
    "lastShown": "2020-10-05T07:00:00.000Z",
    "impressions": ">1M",
    "spend": ">$1M",
    "country": "US",
    "advertiser": {
      "id": "108824017345866",
      "name": "Meta",
      "url": "https://www.facebook.com/Meta/",
      "logo": "https://scontent-dfw5-2.xx.fbcdn.net/v/t1.6435-9/119568341_200337161527884_7846459746434232698_n.png?stp=dst-png_s60x60&_nc_cat=100&ccb=1-7&_nc_sid=c53f8f&_nc_ohc=ZqrAiU5uA1sQ7kNvwHsXpf9&_nc_oc=AdqVVq_tCCm9QfdHEQa5d82UKJTt9DT4LxrW9m95vTx7VJLcyuQH74gIZv0WeiJgIfo&_nc_zt=23&_nc_ht=scontent-dfw5-2.xx&_nc_gid=oKi5rqU7-78Y6XFLpAVqvA&_nc_ss=79289&oh=00_AQDIgONmGu5lj1i0jpr_nH9fjb7afatDtlB-wsXtBQNtZQ&oe=6A8F324E"
    },
    "media": [
      "https://video-dfw5-1.xx.fbcdn.net/o1/v/t2/f2/m412/AQNN757NtitUcJnpv0ODeMH6fXo-yFM-X90P2W82Zsrc70oOzST9lrKgscKf21SHBUtZ9pdKMclY8s32B0eRJ7o.mp4?_nc_cat=106&_nc_sid=ef5aa3&_nc_ht=video-dfw5-1.xx.fbcdn.net&_nc_ohc=DeBVZh2ChkAQ7kNvwELM_GV&efg=eyJ2ZW5jb2RlX3RhZyI6Inhwdl9wcm9ncmVzc2l2ZS5WSV9VU0VDQVNFX1BST0RVQ1RfVFlQRS4uQzMuMzQwLmFzaWNfaHExX3NkX3Byb2dyZXNzaXZlIiwieHB2X2Fzc2V0X2lkIjo4MzE0MTAwMzMxNDk2MzYsImFzc2V0X2FnZV9kYXlzIjoyNDEsInZpX3VzZWNhc2VfaWQiOjEwNjgwLCJkdXJhdGlvbl9zIjoxNSwidXJsZ2VuX3NvdXJjZSI6Ind3dyJ9&ccb=17-1&_nc_gid=oKi5rqU7-78Y6XFLpAVqvA&_nc_ss=79289&_nc_zt=28&oh=00_AQB-CUR53tb21BEWdlRLg5BhAauE3-hDDO9zmz06SvSAdg&oe=6A6D9B48",
      "https://scontent-dfw5-1.xx.fbcdn.net/v/t39.35426-6/120065387_2711663819108220_8472417301728012411_n.jpg?_nc_cat=105&ccb=1-7&_nc_sid=c53f8f&_nc_ohc=JCEJHIw0engQ7kNvwEcgh1o&_nc_oc=Ado6Dn6wrEd2aZKTiM6OLVJyx_BYbHRC0Bmv70xAZp21Pm2Enab2l80KoUSxQZAs1Ow&_nc_zt=14&_nc_ht=scontent-dfw5-1.xx&_nc_gid=oKi5rqU7-78Y6XFLpAVqvA&_nc_ss=79289&oh=00_AQAw5ZEVUbeJYpBcx6Qa4wV6V-hZRjNvtI487nUdgq8UZA&oe=6A6D850A"
    ]
  }
}

Billing metadata is returned in response headers: X-Captapi-Credits (credits charged), X-Captapi-Cache (hit or miss), and X-Captapi-Source. Failed requests (4xx/5xx) are never charged. See the full list of error codes in the error reference.

Response structure

A successful call returns success, cached, creditsUsed, and a data object with the following fields:

Top-level fields

platformPlatform identifier (e.g. youtube, instagram).
idStable platform ID for the item.
urlCanonical URL of the item.
textText content.
headlineProfile headline.
ctaCall-to-action text.
landingUrlLanding page the ad links to.
adFormatFormat of the ad creative.
firstShownWhen the ad was first shown.
lastShownWhen the ad was last shown.
impressionsEstimated ad impressions.
spendEstimated ad spend.
countryCountry name (e.g. Mexico, United States).
mediaMedia attached to the item.

Advertiser

The advertiser object contains:

idStable platform ID for the item.
nameName of the item or account.
urlCanonical URL of the item.
logoLogo image URL.

Parameters

Name	Type	Required	Description
url	string	Yes	Meta Ad Library ad URL or ad ID. The URL platform must match this endpoint's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble.
cache	boolean	No	Set true to serve from the 24h response cache. Default false — always fetch fresh data.

Authentication: send your key as Authorization: Bearer capt_live_.... A typical call costs 2 credits. Pass cache=true for a free 24h cache hit; default is always fresh.

Using an AI agent? This endpoint is the MCP tool facebook_ad_library_ad_details via @captapi/mcp. Set it up →

How it works

1. Sign up — get 100 free credits, no card required.
2. Create a key from your dashboard.
3. Send one request to /v1/ad-library/facebook/ad-details and parse the JSON response.

Use cases

Analytics

Track views, likes, and engagement over time.

Competitor Monitoring

Benchmark the performance of other creators.

Dashboards

Power reporting and BI with real metadata.

Content Curation

Filter and rank videos by performance.

Frequently asked questions

What does the Facebook Ad Details API do?+

The Facebook Ad Details API lets you fetch full metadata and key stats from a public Ad Library ad using one GET request to /v1/ad-library/facebook/ad-details. It returns clean JSON — no OAuth or infrastructure setup required.

How many credits does the Facebook Ad Details API cost?+

Each successful call costs 2 credits. Pass cache=true to serve from the 24h shared cache (0 credits on hit); default is always fresh. 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, Rumble, Spotify, Kwai, and more. We handle proxies, rate limits, retries, and authentication for you.

Is the Facebook Ad Details API suitable for production use?+

Yes. It is a stable REST endpoint with predictable JSON and automatic retries. Pass cache=true to serve from the 24h shared cache (0 credits on hit); default is always fresh. Use it for analytics, monitoring, and content automation.

More Ad Library APIs

Facebook Ad Library Search API Facebook Company Ads API Facebook Ad Library Search Companies API Facebook Ad Transcript API TikTok Ad Library Search API TikTok Ad Details API Google Company Ads API Google Ad Details API Google Advertiser Search API LinkedIn Ad Library Search API LinkedIn Ad Details API

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