curl --request POST \
  --url https://api.pramaan.dev/v1/capabilities/payments.saved-method.create \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "customerKey": "customer_1",
  "method": {
    "type": "encrypted-card",
    "number": "encrypted_number",
    "expiryMonth": "encrypted_month",
    "expiryYear": "encrypted_year"
  },
  "recurringUse": "on-file"
}
'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    customerKey: 'customer_1',
    method: {
      type: 'encrypted-card',
      number: 'encrypted_number',
      expiryMonth: 'encrypted_month',
      expiryYear: 'encrypted_year'
    },
    recurringUse: 'on-file'
  })
};

fetch('https://api.pramaan.dev/v1/capabilities/payments.saved-method.create', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.pramaan.dev/v1/capabilities/payments.saved-method.create"

payload = {
    "customerKey": "customer_1",
    "method": {
        "type": "encrypted-card",
        "number": "encrypted_number",
        "expiryMonth": "encrypted_month",
        "expiryYear": "encrypted_year"
    },
    "recurringUse": "on-file"
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "savedMethodId": "<string>",
  "type": "card",
  "brand": "visa",
  "last4": "<string>",
  "expiryMonth": 6,
  "expiryYear": 5999,
  "createdAt": "<string>"
}

{
  "error": {
    "code": "addendum_required",
    "message": "<string>",
    "next": "<string>",
    "request_id": "<string>",
    "retryable": true,
    "effect": "none",
    "slot": "<string>",
    "required_micro": 123,
    "reason": "balance",
    "plan": "<string>",
    "needs": [
      {
        "kind": "approval",
        "detail": "<string>",
        "step": "<string>"
      }
    ]
  }
}