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Partly API is the most detailed and complete Fitment Data API in the world

Software platforms and marketplaces use Partly API to provide industry-standard fitment data, parts and vehicle information.

APIĀ documentationPartly data overview
Auto Parts Fitment Data API for parts marketplaces

The foundation of a successful parts strategy

Our infrastructure API solution addresses the complexities and challenges of fitment data at this scale, powering businesses and enterprises to build and scale their parts platform.


OE brands

42 million

catalog parts


aftermarket brands

Multiple regions

including North America, Europe, the Middle East and Oceania

Icon for global auto parts data standard

Global Standardised Data

Use the industry-recognized standard to communicate with vendors, suppliers, accounting systems and more

Auto Parts Icon maintained fitment

Maintained by us

We do the heavy lifting so you can focus on what's important to you

Modern API stack for fitment data using GraphQL

Modern stack

GraphQL and clear documentation make PartlyAPI easy to use and distribute

Partly APIĀ use cases

Search Interchanges by parts
Input a part number and the APIĀ returns the information of other parts that it can be replaced with.
YMM Vehicle Selector
Allow buyers to search and select their vehicle using a year-make-model or make-model-year vehicle selector.
Get part information
Get all relevant information for a part including vehicle compatibility, categories, brand, type, and dimensions.
Find vehicles that fit a part
Query a list of all vehicles that can take/fit a particular part.
Auto Parts Fitment Cross Reference aftermarket with OE equivalent

Partly Databases

Vehicle Information and Definitions from UVDB

With vehicles evolving and becoming more configurable, base vehicle data is not accurate or sufficient enough. Utilizing UVDB, we link catalog parts directly to vehicle base properties to provide config fitment, Ā an extremely accurate link to real world vehicle configurations.

Learn more about UVDB
Global Auto Parts Catalog showing GraphQl Database relationship between parts and vehicle configuration

Detailed catalog parts information from GAPC

Global Auto Parts Catalog is the most detailed and accurate parts catalog in the world, providing part information such as name, description, dimensions and weight.
GAPC communicates with multiple data standards and marketplaces around the world.

Learn more about GAPC

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