# Merchant Identifier
source: https://developer.mastercard.com/merchant-identifier/product/merchant-identifier/index.md

### Transaction enrichment to build the programs and experiences you and your customers want {#transaction-enrichment-to-build-the-programs-and-experiences-you-and-your-customers-want}

Merchant Identifier allows financial institutions and technology companies to enrich payment transaction logs with rich merchant information.
![Overview](https://static.developer.mastercard.com/content/merchant-identifier/uploads/before_after_mid.svg)

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### Use cases {#use-cases}

![Loyalty program execution](https://static.developer.mastercard.com/content/merchant-identifier/uploads/loyalty_program_execution.svg)

###### Loyalty Attribution and Spend Control {#loyalty-attribution-and-spend-control}

Leverage merchant attributes or whitelists to determine appropriate rewards for transactions

[Learn more](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/loyalty-attribution-and-spend-controls/index.md)
![Authorization and blacklists](https://static.developer.mastercard.com/content/merchant-identifier/uploads/authorization_and_blacklists.svg)

###### Know Your Business {#know-your-business}

Verify merchant details like category, address, other location details for real-time decision across decisions across onboarding, programs, and real-time transactions.

[Learn more](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/know-your-business/index.md)
![Analytics](https://static.developer.mastercard.com/content/merchant-identifier/uploads/analytics.svg)

###### Transaction Analytics {#transaction-analytics}

Enhance analytics by tagging cardholder transactions with rich merchant attributes

[Learn more](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/transaction-analytics/index.md)
![Banking app UX enhancements](https://static.developer.mastercard.com/content/merchant-identifier/uploads/banking_app.svg)

###### Digital Banking Experience {#digital-banking-experience}

Enhance the holistic digital banking experience by knowing exactly where cardholders spend

[Learn more](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/digital-banking-experience/index.md)

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### How it works {#how-it-works}

###### Step 1 {#step-1}

Client submits raw payment transaction record into Merchant Identifier API

###### Step 2 {#step-2}

Merchant Identifier performs a lookup to identify the merchant's cleansed name, address, and other valuable attributes

###### Step 3 {#step-3}

Client receives merchant details and can embed information into other applications and products
Note: Merchant Identifier is the transaction enrichment module of the Mastercard Places product suite. It is available via Places batch data feed, or as an API. [Learn more](https://developer.mastercard.com/product/places/) about Places.

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### Developer enablement {#developer-enablement}

Start using the Sandbox API

Explore our ready-to-go guide and get up and running in less than 5 minutes


[View quick start guide](https://developer.mastercard.com/merchant-identifier/merchant-identifier/documentation/quick-start-guide/index.md)
Get production data access

Get started in less than 10 business days and enjoy up to 10.000 API calls during the first 28 days with our Free Trial Access


[View the free trial guide](https://developer.mastercard.com/merchant-identifier/merchant-identifier/documentation/index.md#next-steps)

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### Resources {#resources}

<br />

Merchant Identifier

Improve transaction data with merchant attributes for the accepting party in the transaction.

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**Used By** Issuers, Processors, Data Aggregators, Financial Technology Companies, Pre-paid Debt, Acquirers, Loyalty and Cobrand Partners **Regions** Global **Supports** ![mastercard card](https://developer.mastercard.com/img/card_mastercard.svg)![maestro card](https://developer.mastercard.com/img/card_maestro.svg)![visa card](https://developer.mastercard.com/img/card_visa.svg)![amex card](https://developer.mastercard.com/img/card_amex.svg)![diners card](https://developer.mastercard.com/img/card_diners.svg)![discover card](https://developer.mastercard.com/img/card_discover.svg)![jcb card](https://developer.mastercard.com/img/card_jcb.svg) Places

Analyze enriched data necessary for clients to fuel solutions they are building for their customers and internal needs.

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**Used By** Issuers, Mapping and Navigation, CPGs, Merchant Service Providers, Processors, Search and Recommendation Engines, Retail/Real Estate, Municipalities, Digital Marketing, Local Intelligence Platform, Data Aggregators, Financial Technology Companies, Pre-paid Debt, Acquirers, Loyalty and Cobrand Partners **Regions** Global **Supports** ![mastercard card](https://developer.mastercard.com/img/card_mastercard.svg)![maestro card](https://developer.mastercard.com/img/card_maestro.svg)![visa card](https://developer.mastercard.com/img/card_visa.svg)![amex card](https://developer.mastercard.com/img/card_amex.svg)![diners card](https://developer.mastercard.com/img/card_diners.svg)![discover card](https://developer.mastercard.com/img/card_discover.svg)![jcb card](https://developer.mastercard.com/img/card_jcb.svg)

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