TCID is an open identifier standard for the trading card market. It assigns a stable, permanent reference to each distinct card type, governed by a neutral standards body and free for any market participant to reference.
Every major platform in the trading card market maintains its own proprietary identifier for the same physical card. Grading companies, marketplaces, insurance carriers, appraisers, and collector applications each reference cards differently, with no shared canonical key. The same Aaron Judge rookie card may have a dozen different identifiers across the systems that touch it.
TCID solves interoperability, not identification. Vision systems and grading platforms identify cards. TCID provides the permanent, neutral, citable reference layer that all of those systems can resolve to. A card sold raw, graded, and resold across different platforms generates separate records with no neutral identifier persisting across them. That is the gap TCID fills.
A neutral standard governed by a neutral entity avoids structural commercial conflicts of interest. The model TCID follows is well-established in other industries. Securities use CUSIP, governed by the American Bankers Association. Fine wine uses LWIN, governed by Liv-ex. Retail uses GTIN, governed by GS1. Each is a neutral registry, separately funded from the commercial activity it indexes, with governance designed to preserve neutrality over time.
TCID is being structured as a 501(c)(6) standards body. The nonprofit will own and govern the standard itself. A separately incorporated commercial entity will operate the API access layer that funds the registry's maintenance.
TCID is in active development. Manufacturers, grading companies, insurers, appraisers, and dealers interested in early conversations about adoption or partnership can reach the project at info@tradingcardid.org.