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all merchant offers for a product variant — per-merchant price, availability, delivery, merchant redirect URL (paginated; use a VARIANT id, -aNNN)
Product id. geizhals: the digits in -vNNN.html (family) / -aNNN.html (variant). cimri: the numeric id after the slug comma (…,2237451716) — prefer passing the full `url`. akakce: the numeric prCode (…,282674948.html, or just 282674948) — a bare prCode works (api6 needs no slug).
Full product/variant URL (overrides product_id). geizhals: a *.html page. cimri: https://www.cimri.com/<slug>,<id>. akakce: https://www.akakce.com/<slug>,<id>.html. Take it from a search result's comparison_url.
Price-comparison source. LIVE: geizhals (DACH, full-curl SSR) · akakce (TR, BARE api6.akakce.com internal JSON API — no browser, curl_cffi+proxy) · cimri (TR, browser-mint over the Cloudflare managed-challenge). Idealo is NOT live: its /preisvergleich/* data prefix is behind Akamai Bot Manager (_abck sensor) which our proxy pool cannot clear (browser-mint attempted live 2026-06-11 — see notes/browser_mint_verdict.json; needs cleaner residential/mobile IPs).
Locale host. geizhals: de/at/eu (same DOM, different merchant pool). cimri/akakce are TR-only (country is ignored for them).
Result page (1-based). Page forward with meta.next_page. (1–50)
Result sort order. geizhals: passed to the site 'sort' value. akakce: engine-side offer sort — 'p' price asc, '-p' price desc.
Filter offers to a merchant (vdName, case-insensitive substring — e.g. 'n11', 'Amazon', 'Trendyol'). akakce offers/compare only.
Filter offers to price >= min_price (akakce offers/compare).
Filter offers to price <= max_price (akakce offers/compare).
Top-N: cap the returned offers after sort/filter (akakce offers/compare). Honest bare ceiling per query ≈ 15 offers (~5 product models × top-3). (1–200)
curl -X POST https://api.reefapi.com/price-compare/v1/offers \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"product_id":"2798122"}'Hit Send to run this endpoint live.