Facebook Ad Library

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

Facebook Ad Details API

One Meta ad by ID — same creative as search, plus delivery breakdowns when Meta publishes them.

2 credits per request

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

TL;DR

One Meta ad by ID — same creative as search, plus delivery breakdowns when Meta publishes them. The Facebook Ad Details API (Facebook 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 archive ID and get that creative as clean JSON. Creative fields (text, headline, cta, landingUrl, media, advertiser) match a search hit for the same id — use this for ID lookup without paging search. Delivery extras when Meta publishes them (mostly political/issue and EU AAA ads): platforms / publisherPlatforms, demographicDistribution[], regionDistribution[], ageCountryGenderReachBreakdown / euTransparency, variantCount (collation), isAaaEligible. On commercial ads Meta often withholds those breakdowns — keys stay present as null so the schema is stable. Flat 2 credits on the native path.

What you get

ID lookup without paging Ad Library search
platforms / publisherPlatforms when Meta lists them
demographicDistribution[] + regionDistribution[] when published
EU AAA: euTransparency + ageCountryGenderReachBreakdown
variantCount (collation) + isAaaEligible
Stable null keys when Meta withholds delivery extras

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 (0 credits on hit). Default false — always fetch fresh. Envelope includes cached + cachedAt on hits.

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 for this response (matches the endpoint's platform).
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 for the request context. On popular-creators top-level: ISO feed market you queried (e.g. US) — not each creator's home country (see region).
mediaMedia attached to the item.

Advertiser

The advertiser object contains:

idStable platform ID for the item.
nameName of the item or account. On profile endpoints: deprecated alias of displayName (one release).
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 (0 credits on hit). Default false — always fetch fresh. Envelope includes cached + cachedAt on hits.

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 Facebook 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 cache (0 credits on hit); default is always fresh. Hits include cached + cachedAt. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Failed or empty results are never charged.

Do I need a Facebook 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 cache (0 credits on hit); default is always fresh. Hits include cached + cachedAt. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Use it for analytics, monitoring, and content automation.

More Facebook Ad Library APIs

Facebook Ad Library Search API Facebook Company Ads API Facebook Ad Library Search Companies API Facebook Ad Transcript API

Ready to use the Facebook Ad Details API?

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