How to get Facebook Ad Library ad details
GET request to /v1/ad-library/facebook/ad-details with your input. You get clean JSON back in seconds for 2 credits per call — no OAuth, scraping or platform SDKs. One Meta ad by ID — same creative as search, plus delivery breakdowns when Meta publishes them. Flat 2 credits.How to get Facebook Ad Library ad details (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 Details API
Send an authenticated GET request to /v1/ad-library/facebook/ad-details with your input. No OAuth, no scraping setup.
- 3
Read the JSON response
Parse the clean JSON response. Pass cache=true for a free 24h cache hit; default is always fresh.
Code example
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_..."What the response looks like
{
"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 (credits charged, cache hit/miss) is returned in the X-Captapi-Credits and X-Captapi-Cache response headers.
Request 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. |
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. 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.
Why did one call cost 17 credits?
That was a billing bug, not a second price. Native hits billed 2; a native miss fell through to the extended actor and hardcoded 17 — the same PH-8 leftover as popular-hashtags charging 18. Both paths are 2 credits now. fetchPath is native | fallback so you can see which path ran; it does not change the price.
Why is media.length 2 on a single-creative ad?
It isn't anymore. media used to flatten the primary asset with its variant (images[].resizedUrl, or the video poster). media is now one URL per creative. images[] / videos[] still pair url with resizedUrl / previewUrl.
Is caption the ad copy?
No. caption is the display domain Meta shows under the creative (blogs.groovewriters.com). text, headline, and linkDescription are the copy.
Why does advertiser have two ids?
id is the Ad Library page id (view_all_page_id) — join on that. profileId is the facebook.com/{digits} profile namespace when it differs; advertiser.url is built from profileId. Both are keyed on this endpoint (profileId is null when they are the same or unknown).
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. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Use it for analytics, monitoring, and content automation.
Ready to get Facebook Ad Library ad details?
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