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Closient provides a suite of APIs for working with structured product data, GS1 Digital Links, supply chain events, and local inventory search. This documentation covers everything you need to integrate with the platform.

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What You Can Do

Product Data

Create, manage, and enrich product records with GTINs, images, certifications, and sustainability data.

GS1 Digital Link

Resolve any GTIN to structured product data using GS1-conformant Digital Link URIs.

EPCIS 2.0

Capture and query supply chain events with a standards-compliant EPCIS 2.0 implementation.

Local Search

Find products at nearby stores, ranked by geographic proximity and inventory confidence.

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API Overview

All APIs follow consistent conventions:
  • Authentication via X-API-Key header
  • JSON request and response bodies
  • Paginated list endpoints with a standard envelope
  • Standard error codes across all endpoints
  • Rate limiting with headers on every response
Each API domain (Products, Brands, Locations, etc.) has its own OpenAPI specification and interactive playground in this documentation.

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Base URL

https://www.closient.com
All API paths are relative to this base URL. For example, the Products API lives at /products/api/v1/.

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Need Help?

Contact us at support@closient.com or visit your Dashboard for account management.