MCC Lookup

Searches a curated list of ~80 well-known ISO 18245 Merchant Category Codes — the 4-digit codes acquirers assign to every merchant to classify what they sell (groceries, airlines, restaurants, digital goods, gambling, and so on). Useful for product engineers building payment dashboards, risk analysts triaging declines, finance teams categorising card spend, and developers writing fraud rules. Match by exact code first, then by case-insensitive substring on description or category. Each entry includes a best-effort risk tier (Low / Medium / High) based on the category — gambling and quasi-cash are High, recurring digital goods and travel are Medium, regulated retail and utilities are Low. Runs entirely in your browser — your data is never sent anywhere.