Test Credentials

Use these credentials when testing against the sandbox environment. They only work in sandbox and will not process real payments.

Card payments

Stripe

Use any future expiry and any 3-digit CVV (4 digits for Amex). Polar processes through Stripe, so these cards also work for Polar.

Scenario	Card Number	Expiry	CVV
Payment success	`4242 4242 4242 4242`	`12/34`	`123`
Payment success (Visa debit)	`4000 0566 5566 5556`	`12/34`	`123`
Payment declined	`4000 0000 0000 0002`	`12/34`	`123`
Insufficient funds	`4000 0000 0000 9995`	`12/34`	`123`
Expired card	`4000 0000 0000 0069`	`12/34`	`123`
Incorrect CVC	`4000 0000 0000 0127`	`12/34`	`123`
3D Secure required	`4000 0025 0000 3155`	`12/34`	`123`

Paddle

Use any cardholder name and any future expiry.

Scenario	Card Number	Expiry	CVV
Payment success (no 3DS)	`4242 4242 4242 4242`	`12/34`	`123`
3D Secure required	`4000 0038 0000 0446`	`12/34`	`123`
Payment declined	`4000 0000 0000 0002`	`12/34`	`123`
Payment success (debit)	`4000 0566 5566 5556`	`12/34`	`123`
Succeeds, then later declines	`4000 0027 6000 3184`	`12/34`	`123`

Dodo Payments

Scenario	Card Number	Expiry	CVV
Payment success (US Visa)	`4242 4242 4242 4242`	`12/34`	`123`
Payment success (US Mastercard)	`5555 5555 5555 4444`	`12/34`	`123`
Payment success (India Visa)	`4576 2389 1277 1450`	`12/34`	`123`
Payment success (India Mastercard)	`5409 1626 6938 1034`	`12/34`	`123`
Payment declined	`4000 0000 0000 0002`	`12/34`	`123`
Insufficient funds	`4000 0000 0000 9995`	`12/34`	`123`

Whop

Use any future expiry and any 3-digit CVV.

Scenario	Card Number	Expiry	CVV	3DS Password
Payment success	`4242 4242 4242 4242`	`12/34`	`123`
Payment declined	`4000 0000 0000 0002`	`12/34`	`123`
Succeeds, then later charge fails	`4000 0000 0000 0341`	`12/34`	`123`
3D Secure required	`5385 3083 6013 5181`	`12/34`	`123`	`Checkout1!`

Flutterwave

Scenario	Card Number	Expiry	CVV	PIN	OTP
Mastercard (PIN)	`5531 8866 5214 2950`	`09/32`	`564`	`3310`	`12345`
Mastercard (3DS)	`5438 8980 1456 0229`	`10/31`	`564`
Visa (3DS)	`4187 4274 1556 4246`	`09/32`	`828`
Visa (no auth)	`4556 0527 0417 2643`	`09/32`	`899`
Visa (3DS, generic)	`4242 4242 4242 4242`	`01/31`	`812`
Verve (PIN)	`5061 4604 1012 0223 210`	`10/31`	`780`	`3310`	`12345`
Do not honour	`5143 0105 2233 9965`	`09/32`	`123`
Insufficient funds	`5258 5859 2266 6506`	`09/32`	`123`
Fraudulent	`5590 1317 4329 4314`	`09/32`	`123`
Incorrect PIN	`5399 8346 9789 4723`	`09/32`	`123`

Kora

Scenario	Card Number	Expiry	CVV	PIN	OTP
Visa (no auth)	`4084 1278 8317 2787`	`09/30`	`123`
Mastercard (PIN)	`5188 5136 1855 2975`	`09/30`	`123`	`1234`
Mastercard (OTP)	`5442 0561 0607 2595`	`09/30`	`123`	`1234`	`123456`
Visa (3DS)	`4562 5437 5547 4674`	`09/30`	`123`		`1234`
Mastercard (AVS)	`5384 0639 2893 2071`	`09/30`	`123`	`1234`
Verve (insufficient funds)	`5060 6650 6066 5060 67`	`09/30`	`408`

Cray

Scenario	Card Number	Expiry	CVV
Payment success	`4084 0800 0000 0409`	`11/26`	`000`

Local payment methods

Dodo Payments

Method	Scenario	Value
UPI	Success	`success@upi`
UPI	Failure	`failure@upi`
Pix	Generates a test QR code	CPF `00000000000`

UPI requires the billing country to be India.

Flutterwave

Bank transfer: add a suffix to the transaction reference to control the outcome.

Scenario	Reference suffix
Success	`_PMCK`
Failure	`_PMCK_ST_F`
Success after a set delay (default 10 minutes)	`_PMCKDU_{minutes}`

Mobile money: any phone number with OTP 123456 succeeds. These numbers simulate a failure:

Scenario	Phone Number
Failure	`233121212121`
Failure	`233010101011`
Failure	`121212121`

Kora

Bank transfer: sandbox virtual account payments complete automatically 2 minutes after the account is generated. Mobile money:

Country	Network	Scenario	Phone Number
Kenya	Safaricom	Success	`254711111111`
Kenya	Airtel	Failure	`254722222222`
Ghana	Airtel	Success	`233242426222`
Ghana	MTN	Failure	`233722222222`

StartButton

Collections (mobile money): use any 6-digit OTP, for example 123456.

Country	Success	Failure
GHS	`+233501234567`	`+233507654321`
KES	`+254701234567`	`+254707654321`
RWF	`+250131313131`	`+250740000030`
TZS	`+255121212121`	`+255750000020`
UGX	`+256101010111`	`+256760000010`
XOF	`+2250111111111`	`+2250222222222`

Crypto

HoneyCoin

All sandbox transactions use the BASE chain and the USDC to KES pair. Use a unique reference for each test.

Destination	Success	Failure
Bank account (any bank code)	`1234567890`	`0987654321`
Mobile money	`254712345678`	`254787654321`

Blockradar

Sandbox runs on testnets (for example Sepolia, Amoy, Nile and Solana Devnet). Fund test wallets with testnet tokens from the chain’s public faucet. Testnet and mainnet wallets are fully separate.

Never send real crypto to sandbox addresses.

Get Started

Webhooks

Card payments

Stripe

Paddle

Dodo Payments

Whop

Flutterwave

Kora

Cray

Local payment methods

Dodo Payments

Flutterwave

Kora

StartButton

Crypto

HoneyCoin

Blockradar

​Card payments

​Stripe

​Paddle

​Dodo Payments

​Whop

​Flutterwave

​Kora

​Cray

​Local payment methods

​Dodo Payments

​Flutterwave

​Kora

​StartButton

​Crypto

​HoneyCoin

​Blockradar

Card payments

Stripe

Paddle

Dodo Payments

Whop

Flutterwave

Kora

Cray

Local payment methods

Dodo Payments

Flutterwave

Kora

StartButton

Crypto

HoneyCoin

Blockradar