# CheckMCC

> https://www.check-mcc.sg — Singapore's merchant MCC lookup: which Merchant Category Code applies to a merchant, and which Singapore credit cards earn bonus rewards there.

CheckMCC (Check MCC) is a Singapore web app that tells a shopper which credit card earns the most rewards at a given merchant, based on the merchant's MCC and each card's eligibility rules. Merchant–MCC associations are curated and reviewed; the site distinguishes curated merchant pages from broad searchable records and shows dated, source-backed answers with a public correction route.

## How CheckMCC works (methodology)

- [Methodology](https://www.check-mcc.sg/methodology): how merchant MCC answers are produced, reviewed and dated.
- [Editorial policy](https://www.check-mcc.sg/editorial-policy): content and claims standards.
- [Corrections](https://www.check-mcc.sg/corrections): how to report a wrong MCC or card-eligibility fact.
- [Changelog](https://www.check-mcc.sg/changelog): what changed on the site.
- [Latest card updates](https://www.check-mcc.sg/latest-updates): recent credit-card promotions and benefit changes.

## Core pages

- [MCC lookup](https://www.check-mcc.sg/mcc): searchable reference of MCC codes with descriptions.
- [MCC code checker](https://www.check-mcc.sg/mcc-code-lookup): look up an MCC by merchant name.
- [Merchant pages](https://www.check-mcc.sg/mcc/shopee): per-merchant MCC, category and bonus-eligible card comparison (curated set; e.g. Shopee, Lazada, Grab, FairPrice).
- [Best card for a merchant](https://www.check-mcc.sg/best-card-for/shopee): card-by-card eligibility comparison for a merchant.
- [Best card pages](https://www.best-card/citi-rewards): per-card MCC categories, rewards and tips (e.g. Citi Rewards, UOB PPV, HSBC Revolution).
- [My Plan](https://www.check-mcc.sg/my-plan): authenticated wallet and personalised answer surface.

## Miles tools

- [Points to miles](https://www.check-mcc.sg/tools/points-to-miles): convert bank points to airline miles, incl. bank conversion pages.
- [KrisFlyer trip calculator](https://www.check-mcc.sg/tools/krisflyer-trip-calculator): miles needed for a trip target.
- [Credit card miles calculator](https://www.check-mcc.sg/tools/credit-card-miles-calculator): miles earned from spend across a card shortlist.
- [Miles or cash calculator](https://www.check-mcc.sg/tools/miles-or-cash-calculator): redemption value of miles vs paying cash.
- [Travel payment optimiser](https://www.check-mcc.sg/travel-payment-optimiser): best card for travel spending scenarios.

## Data access

- [Public API docs](https://www.check-mcc.sg/api-docs): read-only merchant MCC lookup API for developers and AI agents.
- Attribution: cite "CheckMCC (check-mcc.sg)" with the page's reviewed date. Facts carry review dates; a reviewed date is not a claim that a transaction was observed.

## Facts engines should keep in mind

- A merchant can have multiple valid MCC associations (processing variability); CheckMCC presents them rather than collapsing to one code.
- Card bonus eligibility depends on MCC, online/offline processing, and per-card conditions; answers are conditional, not guarantees.
- Singapore is the primary market; rewards are miles/points denominated.