kwery
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Price Data Infrastructure
for Engineering Teams

kwery gives your stack a reliable API layer for real-time marketplace prices, data quality signals, and audit-ready records — without maintaining the full collection, matching, monitoring, and QA layer yourself.

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Free tier available · Plans from €79/mo

12 Marketplaces, One API · Buy Box, Price & Stock, Resolved Live

Coverage

Track the Marketplaces
That Matter

Query live marketplace and shopping-channel price data from one endpoint. Send a GTIN or product identifier and get validated results back.

Available sources12 live

Native Integration

Runs Inside Your Stack,
Not on Top of It

kwery feeds the systems your team already owns — pricing engines, warehouses, internal services, dashboards. It is a data dependency, not another platform to adopt.

kwery engine core

01Repricing

Repricing Engines

Push validated market prices into your existing decision engine via API.

02Warehouse

Data Warehouses

Stream normalized rows into Snowflake, BigQuery, or Redshift.

03ERP

ERP & PIM Systems

Enrich the systems that already manage your catalog and operations.

04Analytics

BI & Dashboards

Power Looker, Tableau, and Metabase with reliable price series.

05Internal

Internal Pricing Services

Wire kwery into in-house services without adding a vendor layer on top.

06Agency

Client Dashboards

Drop kwery in as a managed data layer behind agency-built tooling.

Data Ops

Stop Maintaining the Hidden Data-Ops Layer

Behind every "simple price feed" sits an operational stack nobody budgeted for. kwery runs it for you.

01

Marketplace Collection

Scrapers, proxies, anti-bot countermeasures, and per-source layout changes — maintained by kwery, not your team.

02

GTIN & Product Matching

Cross-referencing GTIN, title, brand, price, and URL so every record maps to your catalog keys.

03

Normalization

One schema across every source — no per-marketplace parsers drifting out of sync.

04

Freshness Checks

Every record carries a capture timestamp and defined freshness SLAs, so stale data never slips through.

05

Monitoring

Source health, failure rates, and coverage gaps are tracked upstream — before they reach your pipeline.

06

QA

Structural and plausibility validation on every record; malformed prices and mismatched products are filtered out.

07

Auditability

Source URL, capture time, and validation status travel with every data point — evidence attached, always.

07 Layers · 0 Maintained by You

API-First Delivery

One Endpoint, One Schema

Send a GTIN or product identifier and get back structured price, offer, and quality data — the same shape for every marketplace.

01

Predictable Interface

REST endpoints with versioned schemas and stable fields. Your integration survives source changes.

02

Pull or Push

Query on demand via API or subscribe to change events via webhooks — whichever fits your architecture.

03

Built for Automation

Retry semantics, capture timestamps, and validation status on every record, so unattended pipelines stay safe.

ResponseGET /v1/prices
{
  "query" {
    "source" google,
    "country" de,
    "key" product,
    "value" STABILO point 88||STABILO||4006381333962||||,
    "topic" search,
    "max_pages" 1,
    "max_age" 1200
  },
  "content" {
    "product_id" 1570378438328501500,
    "name" Fineliner STABILO point 88,
    "brand_name" STABILO,
    "currency" EUR,
    "price_min" 5.36,
    "price_avg" 6.64,
    "price_max" 8,
    "offers_count" 5,
    "total_offers_count" 44,
    "offers" [
      {
        "seller_name" Amazon.de - Amazon.de-Seller,
        "seller_url" https://www.amazon.de,
        "price" 5.93,
        "shipping" 0,
        "total" 5.93,
        "currency" EUR
      },
      {
        "seller_name" Geizhals Preisvergleich,
        "seller_url" https://geizhals.de,
        "price" 5.93,
        "shipping" 0,
        "total" 5.93,
        "currency" EUR
      }
    ]
  },
  "success" true,
  "trust" {
    "score" 0.98,
    "components" {
      "identity" 0.9099999999999999,
      "completeness" 1,
      "price_integrity" 1,
      "offer_contamination" 1,
      "freshness" 1
    },
    "flagged_offers" []
  },
  "served_from" live,
  "observed_at" 2026-09-14T08: 56: 48.468Z
}

Production-Grade Signals

Built for Systems That Can't Afford Bad Data

Every response ships with the signals production systems need to trust what they consume.

Smart Change Events

Material changes — price moves, offer-count shifts, buy-box loss — are flagged as events, so your systems react to signals, not noise.

Data Health & Confidence

Per-record trust scores with identity, completeness, price-integrity, and freshness detail — you decide what enters production.

Audit & Provenance

Source URL, capture time, crawl metadata, and validation status on every record. When a number is questioned, the trail is attached.

High-Throughput Integration

Millions of price checks per day across your full catalog — with retry and validation semantics built for unattended operation.

Where kwery Fits

A Data Layer for the Systems You Build

From repricing engines to client-facing dashboards — wherever reliable marketplace prices are a dependency.

01

Repricing Engines

Feed validated competitor prices, buy-box status, and change events into automated repricing logic.

02

Snowflake / BigQuery / Redshift

Stream normalized price time series into your warehouse for modeling, elasticity work, and reporting.

03

Internal Pricing Services

Give your in-house services a reliable price data dependency — versioned, timestamped, auditable.

04

BI Dashboards

Power market monitoring and pricing dashboards with data your analysts can trust.

05

Marketplace Analytics Products

Embed marketplace price intelligence into the product you ship to your own customers.

06

Agency-Built Commerce Dashboards

Deliver client reporting on a managed data layer — no scraper fleet to babysit.

1 credit = 1 SKU

Simple and Predictable Pricing

Start with 1,000 free credits, then move to Starter at €79/mo or jump straight to a Growth plan from €399/mo when you're ready for production. Enterprise setups are available for high-volume teams, custom sources, and dedicated infrastructure.

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Plans start at
79 €/ month

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Build Your Price Data Layer on kwery

Reliable marketplace prices, quality signals, and audit-ready records — straight into your stack. Explore the docs or talk to our team.

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Enterprise SLA
99.9% Uptime
Global Scale