Looking for the overview — what this API returns, what it costs, and a call you can run without a key? See the Joongna KR public resale listings API page →

Classifieds & Second-hand

Joongna KR public resale listings API & Scraper

Joongna KR public resale listings API returns live Joongna KR public resale listings data as clean JSON for joongna kr public resale listings The primary endpoint, search, returns matching records including listing id, title, price, image and seller.

2 actionsLive JSON1,000 free credits$0.67–$1.50 / 1,000 creditsMCP-ready

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🤖 Using an AI assistant? Copy this link into ChatGPT / Claude / Cursor — it reads every endpoint and parameter instantly and tells you if this API fits your use case.

Developers reach for it when they need to read second-hand listings, asking prices, seller inventory and country-specific listing ids without maintaining one-off scraping code or separate API contracts. If you were about to build or fix a Joongna KR public resale listings scraper, this API is the maintained alternative — it returns the same data as clean JSON, with the proxies, rotation and anti-bot handling already solved. This page covers the live example, request shape, response shape and available actions: search, listing_detail. Every request uses the same ReefAPI envelope, one API key and one shared credit pool, so it fits alongside the rest of your data stack.

Live example

Real request and response JSON

Captured from the indexed primary action, search, on Oct 2, 2026, 11:03 PM UTC.

Captured request

{
  "method": "POST",
  "url": "https://api.reefapi.com/joongna/v1/search",
  "headers": {
    "x-api-key": "$REEF_KEY",
    "content-type": "application/json"
  },
  "body": {
    "query": "iphone",
    "page": 1,
    "limit": 10
  }
}

Captured response

{
  "ok": true,
  "meta": {
    "api": "joongna",
    "endpoint": "search",
    "mode": "live",
    "latency_ms": 1837.4,
    "record_count": 10,
    "bytes": 519181,
    "cache_hit": false,
    "charged_credits": 3,
    "version": "0.1.0",
    "request_id": "edefb45a23ee4a02",
    "queue_ms": 4.9
  },
  "data": {
    "query": "iphone",
    "page": 1,
    "limit": 10,
    "source_page_size": 50,
    "source_total": 17898,
    "results": [
      {
        "listing_id": "232906697",
        "title": "아이폰16프로 판매합니다",
        "url": "https://web.joongna.com/product/232906697",
        "price": 800000,
        "currency": "KRW",
        "image": "https://img2.joongna.com/media/original/2026/10/03/17909821167119j0_KgMYj.jpg?impolicy=thumb&size=150",
        "status_code": 0,
        "location": null,
        "source_date": "2026-10-03 08:01:57",
        "seller": {
          "id": "12572150",
          "name": null
        },
        "wish_count": 0,
        "chat_count": 0,
        "safe_payment_badge": true,
        "gtin": null
      },
      {
        "listing_id": "232883474",
        "title": "아이폰15 Pro 512GB 블랙",
        "url": "https://web.joongna.com/product/232883474",
        "price": 850000,
        "currency": "KRW",
        "image": "https://img2.joongna.com/media/original/2026/10/02/1790906257494h01_Lx8S9.jpg?impolicy=thumb&size=150",
        "status_code": 0,
        "location": "삼평동",
        "source_date": "2026-10-03 08:01:25",
        "seller": {
          "id": "6465990",
          "name": null
        },
        "wish_count": 0,
        "chat_count": 1,
        "safe_payment_badge": true,
        "gtin": null
      },
      {
        "listing_id": "232857128",
        "title": "아이폰 16프로 실버 256GB",
        "url": "https://web.joongna.com/product/232857128",
        "price": 1000000,
        "currency": "KRW",
        "image": "https://img2.joongna.com/media/original/2026/10/01/1790824880960rPu_44Wm4.jpg?impolicy=thumb&size=150",
        "status_code": 0,
        "location": null,
        "source_date": "2026-10-03 08:00:04",
        "seller": {
          "id": "1510757",
          "name": null
        },
        "wish_count": 0,
        "chat_count": 5,
        "safe_payment_badge": true,
        "gtin": null
      }
    ],
    "count": 10,
    "excluded_source_rows": 0,
    "has_more": true,
    "coverage": "Native Korean web listings; source pages 1–2, up to 50 cards per page."
  }
}

Actions

What the Joongna KR public resale listings API does

Action	Description	Concrete use case	Key params
search	Search native Korean listings; source pages 1–2.	Price-intelligence teams call search to search native Korean listings; source pages 1–2..	query, page, limit
listing_detail	Full public listing by a native search listing_id.	Classifieds aggregators call listing_detail to get full public listing by a native search listing_id..	listing_id

Code samples

Call search from your stack

curl -X POST https://api.reefapi.com/joongna/v1/search \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"query":"iphone","page":1,"limit":10}'

import requests

r = requests.post(
    "https://api.reefapi.com/joongna/v1/search",
    headers={"x-api-key": REEF_KEY},
    json={
  "query": "iphone",
  "page": 1,
  "limit": 10
},
)
print(r.json()["data"])

const res = await fetch("https://api.reefapi.com/joongna/v1/search", {
  method: "POST",
  headers: {
    "x-api-key": process.env.REEF_KEY,
    "content-type": "application/json",
  },
  body: JSON.stringify({
  "query": "iphone",
  "page": 1,
  "limit": 10
}),
});
const { ok, data, meta, error } = await res.json();

MCP one-liner

Ask your MCP-connected assistant: call reefapi.joongna.search with {"query":"iphone","page":1,"limit":10}.

Use cases

Who uses this API and why

Price-intelligence teams use Joongna KR public resale listings to search native Korean listings; source pages 1–2..
Classifieds aggregators use Joongna KR public resale listings to get full public listing by a native search listing_id..
Resale and arbitrage tools use Joongna KR public resale listings to read second-hand listings, asking prices, seller inventory and country-specific listing ids, all from one ReefAPI key and credit pool.

FAQ

Questions developers ask before integrating

What is the Joongna KR public resale listings API?

Joongna KR public resale listings API is a ReefAPI endpoint group for joongna kr public resale listings It returns live JSON through POST requests under /joongna/v1.

Is the Joongna KR public resale listings API free to try?

Yes. ReefAPI starts with 1,000 free credits, no card required. Joongna KR public resale listings calls use the same shared credit balance as every other ReefAPI engine.

Do I need a Joongna KR public resale listings login or account?

No login to Joongna KR public resale listings is needed for the API response. You call ReefAPI with your x-api-key header, and the playground can run live examples before you create a production key.

How fresh is the Joongna KR public resale listings data?

The page example is captured from a live search call, and production requests fetch live data through ReefAPI rather than a static sample.

How many credits does the Joongna KR public resale listings API use?

Joongna KR public resale listings actions currently cost 3 credits per successful call. Failed or blocked calls are free. All APIs draw from one credit pool.

Can I call Joongna KR public resale listings from an AI assistant or MCP client?

Yes. Connect ReefAPI once through MCP and your assistant can call joongna actions with the same key, credit pool and JSON envelope used by normal REST requests.

Is the Joongna KR public resale listings API a Joongna KR public resale listings scraper?

It is the managed alternative to a DIY Joongna KR public resale listings scraper. Instead of building and maintaining your own scraper — proxies, headless browsers, captcha and constant breakage — you call one ReefAPI endpoint and get the same joongna kr public resale listings back as clean JSON.

Why does my Joongna KR public resale listings scraper keep getting blocked?

Most Joongna KR public resale listings scrapers break on anti-bot defenses, rate limits and IP bans that need rotating residential proxies and browser fingerprinting to clear. ReefAPI handles all of that for you — no proxies, no captchas, no maintenance — and returns live JSON. Blocked calls are free.

docs / joongna

Joongna KR public resale listings

base /joongna/v12 endpoints

post/joongna/v1/search3 credits

Search native Korean listings; source pages 1–2.

Parameter		Allowed / range	Description
query	required	—	Search text.
page = 1	optional	1–2	Source page, one based.
limit = 10	optional	1–50	Local result cap; source stride stays 50.

Try in playground →

post/joongna/v1/listing_detail3 credits

Full public listing by a native search listing_id.

Parameter		Allowed / range	Description
listing_id	required	—	Native listing ID from search.

Try in playground →

Example request · search

curl -X POST https://api.reefapi.com/joongna/v1/search \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"query":"iphone","page":1,"limit":10}'

Response shape

{
  "ok": true,
  "data": { /* the result */ },
  "meta": {
    "latency_ms": 240,
    "record_count": 12,
    "completeness_pct": 100
  },
  "error": null
}

Built for volume

5M+ requests a day

Measured at 60 requests a second across the fleet, with no central bottleneck. Volume pricing is on request, and per-key limits are raised for high-volume accounts.

Missing a source?

We build it

Tell us a site we do not cover yet and it becomes an engine. A customer asked for bestprice.gr on a Sunday and it was in the catalog the next day.

Support

2 minute median reply

Median time from a question in the live chat to the first answer, measured across every answered conversation. Setup help included, no support tier to buy.

One key, one balance

Every API included

No per-site plans and no separate subscriptions. One key and one credit pool across the whole catalog, so adding a source costs nothing up front.

Planning something large? Tell us the volume and the sources and we will come back with what it costs and what we would have to build.