The amount passed in the PayKKa API needs to use the minimum unit of the currency (ISO standard). The following is a reference table for the minimum unit.
| Currency Code | Currency Symbol | Name | ISO Fraction Digits |
|---|---|---|---|
| CNY | ¥ | Chinese Yuan Renminbi | 2 |
| USD | $ | United States Dollar | 2 |
| JPY | ¥ | Japanese Yen | 0 |
| RUB | ₽ | Russian Ruble | 2 |
| EUR | € | Euro | 2 |
| GBP | £ | British Pound Sterling | 2 |
| HKD | $ | Hong Kong Dollar | 2 |
| AUD | $ | Australian Dollar | 2 |
| CAD | $ | Canadian Dollar | 2 |
| INR | ₹ | Indian Rupee | 2 |
| KRW | ₩ | South Korean Won | 0 |
| MOP | P. | Macanese Pataca | 2 |
| MYR | RM | Malaysian Ringgit | 2 |
| NZD | $ | New Zealand Dollar | 2 |
| SGD | $ | Singapore Dollar | 2 |
| CHF | Fr | Swiss Franc | 2 |
| THB | ฿ | Thai Baht | 2 |
| TWD | $ | New Taiwan Dollar | 2 |
| KWD | د.ك | Kuwaiti Dinar | 3 |
| BHD | .د.ب | Bahraini Dinar | 3 |
| OMR | ريال | Omani Rial | 3 |
| JOD | JD | Jordanian Dinar | 3 |
| QAR | ر.ق | Qatari Riyal | 2 |
| SAR | ر.س | Saudi Riyal | 2 |
| AED | د.إ | United Arab Emirates Dirham | 2 |
| SEK | kr | Swedish Krona | 2 |
| DKK | kr | Danish Krone | 2 |
| NOK | kr | Norwegian Krone | 2 |
| ZAR | R | South African Rand | 2 |
| PHP | ₱ | Philippine Peso | 2 |
| TRY | ₺ | Turkish Lira | 2 |
| ILS | ₪ | Israeli New Shekel | 2 |
| BRL | R$ | Brazilian Real | 2 |
| CZK | Kč | Czech Koruna | 2 |
| MXN | $ | Mexican Peso | 2 |
| PLN | zł | Polish Zloty | 2 |
| HUF | Ft | Hungarian Forint | 2 |
| AFN | ؋ | Afghan Afghani | 2 |
| ALL | L | Albanian Lek | 2 |
| AMD | ֏ | Armenian Dram | 2 |
| ANG | ƒ | Netherlands Antillean Guilder | 2 |
| AOA | Kz | Angolan Kwanza | 2 |
| ARS | $ | Argentine Peso | 2 |
| AWG | ƒ | Aruban Florin | 2 |
| AZN | ₼ | Azerbaijani Manat | 2 |
| BAM | KM | Bosnia-Herzegovina Convertible Mark | 2 |
| BBD | $ | Barbadian Dollar | 2 |
| BDT | ৳ | Bangladeshi Taka | 2 |
| BGN | лв | Bulgarian Lev | 2 |
| BIF | FBu | Burundian Franc | 0 |
| BMD | $ | Bermudian Dollar | 2 |
| BND | $ | Brunei Dollar | 2 |
| BOB | Bs. | Bolivian Boliviano | 2 |
| BOV | $ | Bolivian Mvdol (Funds) | 2 |
| BSD | $ | Bahamian Dollar | 2 |
| BTN | Nu. | Bhutanese Ngultrum | 2 |
| BWP | P | Botswanan Pula | 2 |
| BYN | Br | Belarusian Ruble | 2 |
| BZD | $ | Belize Dollar | 2 |
| CDF | Fr | Congolese Franc | 2 |
| CLP | $ | Chilean Peso | 0 |
| COP | $ | Colombian Peso | 2 |
| CRC | ₡ | Costa Rican Colón | 2 |
| CUC | $ | Cuban Convertible Peso | 2 |
| CUP | $ | Cuban Peso | 2 |
| CVE | Esc | Cape Verdean Escudo | 2 |
| DJF | Fr | Djiboutian Franc | 0 |
| DOP | $ | Dominican Peso | 2 |
| DZD | دج | Algerian Dinar | 2 |
| EGP | ج.م | Egyptian Pound | 2 |
| ERN | Nfk | Eritrean Nakfa | 2 |
| ETB | Br | Ethiopian Birr | 2 |
| FJD | $ | Fijian Dollar | 2 |
| FKP | £ | Falkland Islands Pound | 2 |
| GEL | ლ | Georgian Lari | 2 |
| GHS | ₵ | Ghanaian Cedi | 2 |
| GIP | £ | Gibraltar Pound | 2 |
| GMD | D | Gambian Dalasi | 2 |
| GNF | Fr | Guinean Franc | 0 |
| GTQ | Q | Guatemalan Quetzal | 2 |
| GYD | $ | Guyanese Dollar | 2 |
| HNL | L | Honduran Lempira | 2 |
| HRK | kn | Croatian Kuna | 2 |
| HTG | G | Haitian Gourde | 2 |
| IDR | Rp | Indonesian Rupiah | 2 |
| IQD | د.ع | Iraqi Dinar | 3 |
| IRR | ریال | Iranian Rial | 2 |
| ISK | kr | Icelandic Króna | 0 |
| JMD | $ | Jamaican Dollar | 2 |
| KES | Ksh | Kenyan Shilling | 2 |
| KGS | сом | Kyrgyzstani Som | 2 |
| KHR | ៛ | Cambodian Riel | 2 |
| KMF | Fr | Comorian Franc | 0 |
| KPW | ₩ | North Korean Won | 2 |
| KYD | $ | Cayman Islands Dollar | 2 |
| KZT | ₸ | Kazakhstani Tenge | 2 |
| LAK | ₭ | Lao Kip | 2 |
| LBP | LL | Lebanese Pound | 2 |
| LKR | ₨ | Sri Lankan Rupee | 2 |
| LRD | $ | Liberian Dollar | 2 |
| LSL | M | Lesotho Loti | 2 |
| LYD | ل.د | Libyan Dinar | 3 |
| MAD | د.م. | Moroccan Dirham | 2 |
| MDL | L | Moldovan Leu | 2 |
| MGA | Ar | Malagasy Ariary | 2 |
| MKD | ден | Macedonian Denar | 2 |
| MMK | K | Myanmar Kyat | 2 |
| MNT | ₮ | Mongolian Tugrik | 2 |
| MRO | UM | Mauritanian Ouguiya (1973–2017) | 2 |
| MUR | ₨ | Mauritian Rupee | 2 |
| MVR | Rf. | Maldivian Rufiyaa | 2 |
| MWK | MK | Malawian Kwacha | 2 |
| MXV | ¤ | Mexican Investment Unit (Funds) | 2 |
| MZN | MT | Mozambican Metical | 2 |
| NAD | $ | Namibian Dollar | 2 |
| NGN | ₦ | Nigerian Naira | 2 |
| NIO | C$ | Nicaraguan Córdoba | 2 |
| NPR | ₨ | Nepalese Rupee | 2 |
| PAB | B/. | Panamanian Balboa | 2 |
| PEN | S/ | Peruvian Sol | 2 |
| PGK | K | Papua New Guinean Kina | 2 |
| PKR | ₨ | Pakistani Rupee | 2 |
| PYG | ₲ | Paraguayan Guarani | 0 |
| RON | L | Romanian Leu | 2 |
| RSD | дин | Serbian Dinar | 2 |
| RWF | FRw | Rwandan Franc | 0 |
| SBD | $ | Solomon Islands Dollar | 2 |
| SCR | ₨ | Seychellois Rupee | 2 |
| SDG | ج.س. | Sudanese Pound | 2 |
| SHP | £ | Saint Helena Pound | 2 |
| SLE | SLE | Sierra Leonean Leone | 2 |
| SOS | Sh.So. | Somali Shilling | 2 |
| SRD | $ | Surinamese Dollar | 2 |
| STD | Db | São Tomé and Príncipe Dobra (1977–2017) | 2 |
| SYP | LS | Syrian Pound | 2 |
| SZL | E | Swazi Lilangeni | 2 |
| TJS | SM | Tajikistani Somoni | 2 |
| TMT | T | Turkmenistani Manat | 2 |
| TND | د.ت | Tunisian Dinar | 3 |
| TOP | T$ | Tongan Paʻanga | 2 |
| TTD | $ | Trinidad and Tobago Dollar | 2 |
| TZS | Sh | Tanzanian Shilling | 2 |
| UAH | ₴ | Ukrainian Hryvnia | 2 |
| UGX | USh | Ugandan Shilling | 0 |
| USN | $ | United States Dollar (Next Day) | 2 |
| USS | $ | United States Dollar (Same Day) | 2 |
| UYU | $ | Uruguayan Peso | 2 |
| UZS | UZS | Uzbekistani Som | 2 |
| VEF | Bs. | Venezuelan Bolívar (2008–2018) | 2 |
| VND | ₫ | Vietnamese Dong | 0 |
| VUV | VT | Vanuatu Vatu | 0 |
| WST | WS$ | Samoan Tala | 2 |
| XAF | FCFA | Central African CFA Franc | 0 |
| XCD | $ | East Caribbean Dollar | 2 |
| XOF | CFA | West African CFA Franc | 0 |
| XPF | Fr | CFP Franc | 0 |
| YER | ﷼ | Yemeni Rial | 2 |
| ZMW | ZK | Zambian Kwacha | 2 |
| ZWL | Z$ | Zimbabwean Dollar (2009) | 2 |