Yahoo! Flea Market Japan API & Scraper
Yahoo! Flea Market Japan API returns live Yahoo! Flea Market Japan data as clean JSON for yahoo! flea market japan The primary endpoint, search, returns results with listing id, title, JPY price, source status and seller reputation; source totals and semantic fallback label.
🤖 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 track product listings, prices, availability, variants and reviews without maintaining one-off scraping code or separate API contracts. If you were about to build or fix a Yahoo! Flea Market Japan 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, product/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.
Real request and response JSON
Captured from the indexed primary action, search, on .
{
"method": "POST",
"url": "https://api.reefapi.com/paypay-flea-market/v1/search",
"headers": {
"x-api-key": "$REEF_KEY",
"content-type": "application/json"
},
"body": {
"query": "iphone",
"page": 1,
"limit": 3
}
}{
"ok": true,
"meta": {
"api": "paypay-flea-market",
"endpoint": "search",
"mode": "live",
"latency_ms": 16446.8,
"record_count": 3,
"bytes": 494349,
"cache_hit": false,
"stop_reason": "limit_reached",
"charged_credits": 3,
"version": "1.0.0",
"request_id": "ba1b1679952044c0",
"queue_ms": 1.4
},
"data": {
"query": "iphone",
"page": 1,
"limit": 3,
"source_page_size": 100,
"source_returned": 100,
"offset": 0,
"total_results": 149999,
"total_is_capped": true,
"match_type": "source_ranked",
"source_http_status": 200,
"results": [
{
"id": "z697093472",
"title": "iPhone 17e 256GB 箱のみ",
"url": "https://paypayfleamarket.yahoo.co.jp/item/z697093472",
"price": 15660,
"currency": "JPY",
"gtin": null,
"status": "OPEN",
"in_stock": true,
"brand": "iPhone",
"condition": "new",
"thumbnail": "https://auc-pctr.c.yimg.jp/i/auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0210/users/1a6b398fc85ec07c48eb8dd4075ab2d93420b616/i-img900x1200-17909812834075jj2vh.jpg?pri=s&w=298&h=298&ccw=298&cch=298&fill=1&fw=298&fh=298&up=0&nf_src=sy&nf_path=images/auc/pc/top/image/1.0.3/na_170x170.png&nf_st=200",
"seller": {
"id": "p69152053",
"name": null,
"positive_percent": 83.3,
"rating_count": 24
}
},
{
"id": "z696924036",
"title": "Apple iPhone X シルバー 本体",
"url": "https://paypayfleamarket.yahoo.co.jp/item/z696924036",
"price": 10500,
"currency": "JPY",
"gtin": null,
"status": "OPEN",
"in_stock": true,
"brand": "iPhone XS",
"condition": "used20",
"thumbnail": "https://auc-pctr.c.yimg.jp/i/auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0210/users/27bfac99dfb6f2f5c774089bb8e92ae10422081e/i-img1200x900-17909441784854g2iy7.jpg?pri=s&w=298&h=298&ccw=298&cch=298&fill=1&fw=298&fh=298&up=0&nf_src=sy&nf_path=images/auc/pc/top/image/1.0.3/na_170x170.png&nf_st=200",
"seller": {
"id": "p75847238",
"name": null,
"positive_percent": 100,
"rating_count": 1
}
},
{
"id": "z696769420",
"title": "iPhone SE 2",
"url": "https://paypayfleamarket.yahoo.co.jp/item/z696769420",
"price": 6000,
"currency": "JPY",
"gtin": null,
"status": "OPEN",
"in_stock": true,
"brand": null,
"condition": "used20",
"thumbnail": "https://auc-pctr.c.yimg.jp/i/auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0210/users/f1411b1bee52f7ff30a45546556e4726cce96918/i-img528x959-1790926293639n8c3we.jpg?pri=s&w=298&h=298&ccw=298&cch=298&fill=1&fw=298&fh=298&up=0&nf_src=sy&nf_path=images/auc/pc/top/image/1.0.3/na_170x170.png&nf_st=200",
"seller": {
"id": "p15703296",
"name": null,
"positive_percent": 100,
"rating_count": 15
}
}
],
"has_more": true,
"next_page": 2
}
}What the Yahoo! Flea Market Japan API does
| Action | Description | Concrete use case | Key params |
|---|---|---|---|
| search | Search public Japanese flea-market listings. Native 100-item pages; limit truncates each page, not an exhaustive export. | Pricing teams call search to search public Japanese flea-market listings. | query, page, limit |
| product/detail | Read a public listing using its live search id. | Marketplace operators call product/detail to read a public listing using its live search id.. | item_id |
Call search from your stack
curl -X POST https://api.reefapi.com/paypay-flea-market/v1/search \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"query":"iphone","page":1,"limit":3}'import requests
r = requests.post(
"https://api.reefapi.com/paypay-flea-market/v1/search",
headers={"x-api-key": REEF_KEY},
json={
"query": "iphone",
"page": 1,
"limit": 3
},
)
print(r.json()["data"])const res = await fetch("https://api.reefapi.com/paypay-flea-market/v1/search", {
method: "POST",
headers: {
"x-api-key": process.env.REEF_KEY,
"content-type": "application/json",
},
body: JSON.stringify({
"query": "iphone",
"page": 1,
"limit": 3
}),
});
const { ok, data, meta, error } = await res.json();Ask your MCP-connected assistant: call reefapi.paypay-flea-market.search with {"query":"iphone","page":1,"limit":3}.Who uses this API and why
- Pricing teams use Yahoo! Flea Market Japan to search public Japanese flea-market listings.
- Marketplace operators use Yahoo! Flea Market Japan to read a public listing using its live search id..
- Catalog enrichment teams use Yahoo! Flea Market Japan to track product listings, prices, availability, variants and reviews, all from one ReefAPI key and credit pool.
Questions developers ask before integrating
What is the Yahoo! Flea Market Japan API?
Yahoo! Flea Market Japan API is a ReefAPI endpoint group for yahoo! flea market japan It returns live JSON through POST requests under /paypay-flea-market/v1.
Is the Yahoo! Flea Market Japan API free to try?
Yes. ReefAPI starts with 1,000 free credits, no card required. Yahoo! Flea Market Japan calls use the same shared credit balance as every other ReefAPI engine.
Do I need a Yahoo! Flea Market Japan login or account?
No login to Yahoo! Flea Market Japan 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 Yahoo! Flea Market Japan 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 Yahoo! Flea Market Japan API use?
Yahoo! Flea Market Japan actions currently cost 3 credits per successful call. Failed or blocked calls are free. All APIs draw from one credit pool.
Can I call Yahoo! Flea Market Japan from an AI assistant or MCP client?
Yes. Connect ReefAPI once through MCP and your assistant can call paypay-flea-market actions with the same key, credit pool and JSON envelope used by normal REST requests.
Is the Yahoo! Flea Market Japan API a Yahoo! Flea Market Japan scraper?
It is the managed alternative to a DIY Yahoo! Flea Market Japan 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 yahoo! flea market japan back as clean JSON.
Why does my Yahoo! Flea Market Japan scraper keep getting blocked?
Most Yahoo! Flea Market Japan 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.