POST
/
onramp
Create Onramp Order
curl --request POST \
  --url https://api.sandbox.sardine.ai/v1/onramp \
  --header 'Content-Type: application/json' \
  --data '{
  "userId": "abc123",
  "fromCurrency": "USD",
  "toCurrency": "ETH",
  "amount": 100,
  "chain": "ethereum",
  "paymentMethodId": "pay-987654321",
  "depositAddress": "0xabc123def456ghi789jkl000mno111pqrs222tuv"
}'
{
  "orderId": "ONR-20250417-001",
  "status": "pending",
  "estimatedDelivery": "2025-04-17T15:45:00Z"
}

Body

application/json
​
userId
string
required

ID of the user placing the onramp order

​
fromCurrency
string
required

The fiat currency the user is paying with (e.g., USD)

​
toCurrency
string
required

The cryptocurrency to be delivered (e.g., ETH)

​
amount
number
required

Amount in fiat currency to convert

​
chain
string
required

Blockchain network to use (e.g., ethereum, polygon)

​
paymentMethodId
string
required

ID of the user's selected payment method

​
depositAddress
string
required

Wallet address where the crypto will be delivered

Response

200 - application/json

Onramp order successfully created

​
orderId
string

Unique identifier for the onramp order

​
status
string

Current status of the order (e.g., pending, completed)

​
estimatedDelivery
string<date-time>

Estimated delivery time for crypto