Ask Stripe support for BIN/CAID

To request BIN/CAID from Stripe support for prevention alerts Open the ticket with Stripe support or your point of contact

In your message, specify that you need BIN/CAID, for example:

Hello Stripe Support Team, We are integrating with the prevention alerts provider and need to obtain the MID, BIN and CAID associated with our merchant account. Could you please confirm how we can access these parameters or provide them for our account? Thank you

They may also ask why you need it. Just reply that it’s for a third-party integration, and that you do not store API keys — you only connect to the platform

Submit the request and wait for the answer.
Stripe support may either provide the BIN/CAID details directly or guide you to your acquiring bank if the data is not available.

Payment descriptor (MID) you can get here:

To find the payment descriptor in Stripe, log in to your Stripe account and navigate to Settings > Business details > Public descriptor

We will create account and share accounts details with you
Сonnect Stripe with secret key Integration -> Stripe -> Connect

Create Secret Key in Stripe and add it below

Log in to your Stripe dashboard. Navigate to Developers > API keys.

Click on Create restricted key.

Select Building your own integration.

Set the following permissions:

Disputes: write (Core + Issuing)
Invoices: read
Radar (Reviews): read
Charges and refunds: write
Subscriptions: write
Files: write
Webhook: write
Payment intents: read
Customers: read

Save your newly generated key
Place the key here, select both toggles submit

Dashboard -> Add MID

Choose next:
Resolve: RDR/CDRN/Ethoca

Fill it with information from the Stripe support:

In case where stripe rejected your request of MID/CAID/BIN

You may fill ARNs on the Stripe side

Go to Stripe > Transactions > Refunds. Apply the following filters:

Date: Last 120 days Card brand: Visa Refunded: At least 3 days ago Select the needed transaction. Find the ARN in the Payment breakdown section (20 symbols)

Wait for review from ChargebackHit and ready for launch