Access the most comprehensive grading population dataset across PSA, Beckett, SGC, and CGC — unified and updated daily.
Get in touch ↓A few ways partners are putting GemRate data to work.
Show populations, gem rates, and cert details across PSA, BGS, SGC, and CGC to increase buyer confidence and conversion.
Use GemRate universal IDs to map cards across graders and marketplaces – unlocking accurate comps, pricing engines, and scalable analytics.
Identify rarity, quantify gem potential, understand expected value, and build tools that guide buy and sell decisions with an information edge.
Search our database live. Results come back from all major grading companies in a single call.
Look up any graded card by its cert number across PSA, Beckett, SGC, CGC.
Returns population data for a given card across all major graders. Includes grade distribution, gem rates and historical changes. The input is the GemRate ID.
Search for a card using a structured query. Optimally in the format of
<year>
<set_name>
<card_subject_name>
<parallel>
<card_number>. Best suited for
clean, structured inputs — like data pulled directly from a grader's
website or a card catalog.
Have a question or want to see the API in action? Send us a message or book a demo with our team to walk through your use case and pricing.