Platform and API for verifying vehicle damage history by VIN number - a comprehensive report, fast access after purchase, and a backend that combines many data sources and handles thousands of requests daily.
6 modulesin the report - each fed by a different data source
Minutesfor a report aggregating many external sources in one request
Consumer automotive service with a public API handling thousands of requests a day; delivered together with Datazen
Starting point
The need for an API combining many heterogeneous data sources into one report under heavy, variable traffic
Scope of responsibility
High-performance API, AWS infrastructure, integration of multiple data sources, frontend implementation, and VIN report checkout. Graphic design was delivered by Datazen.
The challenge
What needed to change
API performance under heavy traffic
The API must handle heavy, variable traffic - querying multiple external data sources simultaneously - without response time degradation.
Multiple heterogeneous data sources
The report combines many modules - damage, timeline, warnings, legal status, valuation, and photo gallery - each fed by a different external source.
Data complexity
Every source returns data in a different format - the system has to normalise it and merge it into one coherent report.
Approach
Decisions that changed the system
Concurrent source querying
Backend optimised for concurrent querying of multiple data sources, built on AWS. The API returns a complete report within minutes.
Architecture ready for new sources
We designed the system so that adding a new data source (provider) is fast and requires no rebuild. This lets the client enrich the report with additional data.
Integration of multiple data sources
We combine data from many heterogeneous sources into a single, coherent report - damage, timeline, legal status, valuation, and gallery.
Process
How the work progressed
Architecture and source integration design
We designed the backend architecture and how multiple external data sources are integrated into one report - with easy addition of further sources in mind.
External system handling
We built an integration layer that queries multiple sources simultaneously, designed for fast onboarding of additional data providers.
Optimisation
We optimised the API and AWS infrastructure so report delivery time is minimal even under heavy traffic - with no compromise on data quality.
Outcome
A high-performance VIN report platform ready for new data
REST APIready for partner integrations
The public API handles thousands of requests daily, with a full report returned within minutes.
New sourceswithout rebuilding the system
Adding another data provider is fast - the client can enrich the report with new information.
One funnelVIN → report → purchase
The user goes through the entire process in one coherent experience - without losing context along the way.
HistoriaSzkod.pl is a platform and public API that combine a simple VIN form with a comprehensive report from many sources - with a backend ready for new data sources.
