Trust you can see. Value you can verify.
MAS was built around a simple idea: authentication should be transparent. From live witnessed certification to a public COA lookup anyone can use, MAS earns collector trust the honest way — and it shows in the marketplace.
Witnessed certification
We're there when it's signed. Live, in-person authentication at conventions and private signings is the strongest standard in the hobby — no opinion, no guesswork.
Public, instant verification
Every MAS COA is backed by a free, real-time lookup. Buyers, sellers and auction houses can confirm any item in seconds — total transparency.
Real marketplace value
MAS-certified autographs are actively bought and sold, and MAS COAs are widely recognized — supporting strong, consistent resale value.
An official company
MAS Certified, Inc. is an incorporated Texas corporation with a board of directors — a real business standing behind every certificate.
How MAS fits alongside PSA, Beckett & JSA
PSA, Beckett and JSA are respected, established leaders who helped build the authentication industry, and we hold them in the highest regard. Many collectors proudly use them — and MAS — together. Here's simply where MAS focuses its energy so you can choose what fits your collection best.
Witnessed-first approach
A heavy focus on live, in-person certification at events and signings.
Free instant verification
A public, real-time COA lookup anyone can use at no cost.
Modern & accessible
Fast, affordable turnaround and digital Letters of Authenticity in your pocket.
PSA, Beckett and JSA are trademarks of their respective owners. MAS is not affiliated with or endorsed by them; comparisons reflect MAS's own service focus.
Built step by step, the honest way
MAS is founded with a mission to make authentication trustworthy, transparent and accessible.
MAS begins attending conventions and private signings, building a reputation for live witnessed certification.
MAS completes full incorporation as MAS Certified, Inc. and launches digital LOAs and nationwide grading.