Independent Matter product directory
Contact MatterCatalog
Send corrections, product information, API questions, and support questions to MatterCatalog. We prioritize issues that affect product accuracy, certification trust, and buyer confidence.
MatterCatalog is published by MatterCatalog, Mill Valley, California.
Mailing address: 1 Belvedere Pl, Mill Valley, CA 94941
Product Corrections
Report missing images, incorrect certification details, wrong buy links, or duplicate Matter product listings.
team@mattercatalog.com
Brands and Manufacturers
Send product information or corrections for your own products. Listing is free; we do not sell placement, rankings, badges or reviews.
team@mattercatalog.com
Data and API Questions
Questions about the free public API or about using catalog data. The API needs no key and has no paid plans.
team@mattercatalog.com
For faster product fixes
Include the MatterCatalog product URL, the CSA certificate ID when available, the expected product name or retailer URL, and a short description of what looks wrong.
Brands: Working with MatterCatalog explains how products are listed and what we do not sell. Developers: the developer page documents the free API.