{"status":"ok","tool":"slab_census_summary","total_slabs":41418,"unique_certs":26527,"cards_covered":2039,"last_observed":"2026-10-29","by_grader":[{"grader":"PSA","slabs":27809},{"grader":"CGC","slabs":6921},{"grader":"BGS","slabs":3542},{"grader":"TAG","slabs":1362},{"grader":"Other","slabs":519},{"grader":"unlabeled","slabs":381},{"grader":"ACE","slabs":368},{"grader":"SGC","slabs":141},{"grader":"Automated Grading Systems (AGS)","slabs":123},{"grader":"Premier Card Grading (PCG)","slabs":98},{"grader":"Professional Card Authenticator (PCA)","slabs":20},{"grader":"Diamond Service Grading (DSG)","slabs":18},{"grader":"Gem Mint Authentication (GMA)","slabs":15},{"grader":"Trading Card Grading (TCG)","slabs":14},{"grader":"Arena Club","slabs":10},{"grader":"Rare Edition (Rare)","slabs":9},{"grader":"MNT Grading (MNT)","slabs":8},{"grader":"Hybrid Grading Approach (HGA)","slabs":8},{"grader":"AiGrading","slabs":8},{"grader":"ARK Grading (ARK)","slabs":8},{"grader":"Majesty Grading Company","slabs":7},{"grader":"K Sportscard Authentication (KSA)","slabs":7},{"grader":"Card Grading Australia (CGA)","slabs":7},{"grader":"Revolution Card Grading (RCG)","slabs":4},{"grader":"Platin Grading Service (PGS)","slabs":4},{"grader":"International Sports Authentication (ISA","slabs":4},{"grader":"Gold Standard Grading (GSG)","slabs":3}],"what_this_is":"an eBay-observed census of graded slabs actually circulating on the market — NOT a pop report (pop counts vaulted slabs; this counts what presses on price). Grader+grade come from marketplace-required listing fields, cert numbers verify uniqueness.","per_card_depth":"/api/v1/census?product_id= ($0.05)"}