Price research
See what used items actually sell for in a city before you price your own.
Facebook data API · Marketplace
Get Facebook Marketplace listings from a category or a search URL: title, price, condition, city, state and country, when it was listed, and the listing link.
Updated 21 October 2026
See what used items actually sell for in a city before you price your own.
Watch a category or a search and flag new listings under a price.
Track supply and prices of a product across Marketplace over time.
curl -X POST https://apiforagents.dev/v1/facebook \
-H "Authorization: Bearer $AFA_KEY" \
-H "Content-Type: application/json" \
-d '{"op":"marketplace","subject":"https://www.facebook.com/marketplace/nyc/bicycles","limit":20,"estimateOnly":true}'curl -X POST https://apiforagents.dev/v1/facebook \
-H "Authorization: Bearer $AFA_KEY" \
-H "Content-Type: application/json" \
-d '{"op":"marketplace","subject":"https://www.facebook.com/marketplace/nyc/bicycles","limit":20}'Everything you can send in one marketplace call. Required inputs first.
| Input | Type | What it does |
|---|---|---|
| subject * | string | A Marketplace category or search URL. ≤400 chars |
| limit | integer | 1-100 |
The fields of every row, always present. Nothing is guessed: a value that could not be measured is null, and the answer's coverage says why.
| Field | Type |
|---|---|
| listingId | string |
| listingUrl | string |
| listingTitle | string |
| description | string |
| price | string |
| priceValue | number |
| originalPrice | string |
| currency | string |
| condition | string |
| location | string |
| city | string |
| state | string |
| country | string |
| postalCode | string |
| latitude | number |
| longitude | number |
| listedAt | string |
| primaryPhoto | string |
| photos | any |
| videoUrl | string |
| attributes | any |
| deliveryOptions | list of string |
| mileage | string |
| details | object |
details is always the last field: everything else the source sent for that row, under our own field names. Its keys depend on the source that answered, so read them defensively; it is {} when there is nothing more.
Made-up names and values in the real field names, so you can see the shape before you spend anything.
| listingTitle | price | priceValue | currency | condition | city |
|---|---|---|---|---|---|
| Road bike, 54 cm, barely used | $420 | 420 | USD | Used - like new | Austin |
| Gravel bike, 56 cm | $650 | 650 | USD | Used - good | Austin |
| Kids bike with training wheels | $60 | 60 | USD | Used - fair | Round Rock |
Pay as you go, in US dollars, per record. No subscription, nothing expires, $5 first top-up, and every new agent starts with $0.10 free.
| Request | Records | At the list price |
|---|---|---|
| One listing | 1 | $0.009 |
| 10 listings | 10 | $0.09 |
| A full page | 100 | $0.9 |
These are per-record list prices. Some calls also carry a minimum, such as a page of search results, so a small request can cost more than the table shows. The quote ("estimateOnly": true) is free, gives the most your exact request can cost, and the charge then settles to what came back. Records that do not come back are refunded.
One row per listing: title, price text, price value, currency, condition, city, state, country, listed date, listing id, listing URL and video URL.
One Marketplace category or search URL in subject, and a limit from 1 to 100.
$0.009 per listing at the list price. A small call can carry a minimum, so quote first with "estimateOnly": true, which is free and is the most the call can cost. You pay for what comes back.
The playground runs any endpoint by hand: pick a platform and what you want from it, fill a short form named in plain words (or press Use sample input), see the free quote on the Run button, run it, then read the answer as a table or JSON and download it as CSV or JSON. The same call is written out as cURL, Python and Node while you type.
Why people pick API for Agents
API for Agents is independent and not affiliated with or endorsed by LinkedIn or any company named here. LinkedIn is a trademark of LinkedIn Corporation; other names belong to their owners. Public data only: nothing behind a login.