curl --request GET \
--url "https://api.stablepay.co/api/v1/transfer/{transfer_id}" \
--header "Authorization: Bearer <API_KEY>" \
--header "X-StablePay-Timestamp: <TIMESTAMP>" \
--header "X-StablePay-Nonce: <NONCE>" \
--header "X-StablePay-Signature: <SIGNATURE>"
const response = await fetch("https://api.stablepay.co/api/v1/transfer/{transfer_id}", {
method: "GET",
headers: {
"Authorization": "Bearer <API_KEY>",
"X-StablePay-Timestamp": "<TIMESTAMP>",
"X-StablePay-Nonce": "<NONCE>",
"X-StablePay-Signature": "<SIGNATURE>"
}
});
console.log(await response.json());
{
"transfer_id": "9000000011",
"merchant_id": "2000000001",
"transfer_type": "on_ramp",
"quote_id": "9000000017",
"fiat_deposit_id": "9000000090",
"source_amount": 100500,
"target_amount": 100479,
"rate_type": "fixed",
"rate": "0.9998",
"fee_amount": 5,
"fee_currency": "USD",
"target_account_no": "00000001",
"status": "processing",
"created": 1718726400
}
Stablecoin Exchange API
Retrieve a transfer
Retrieve a transfer
GET
/
api
/
v1
/
transfer
/
{transfer_id}
curl --request GET \
--url "https://api.stablepay.co/api/v1/transfer/{transfer_id}" \
--header "Authorization: Bearer <API_KEY>" \
--header "X-StablePay-Timestamp: <TIMESTAMP>" \
--header "X-StablePay-Nonce: <NONCE>" \
--header "X-StablePay-Signature: <SIGNATURE>"
const response = await fetch("https://api.stablepay.co/api/v1/transfer/{transfer_id}", {
method: "GET",
headers: {
"Authorization": "Bearer <API_KEY>",
"X-StablePay-Timestamp": "<TIMESTAMP>",
"X-StablePay-Nonce": "<NONCE>",
"X-StablePay-Signature": "<SIGNATURE>"
}
});
console.log(await response.json());
{
"transfer_id": "9000000011",
"merchant_id": "2000000001",
"transfer_type": "on_ramp",
"quote_id": "9000000017",
"fiat_deposit_id": "9000000090",
"source_amount": 100500,
"target_amount": 100479,
"rate_type": "fixed",
"rate": "0.9998",
"fee_amount": 5,
"fee_currency": "USD",
"target_account_no": "00000001",
"status": "processing",
"created": 1718726400
}
See authentication, signing, data conventions, and errors. Regenerate the timestamp, nonce, and signature on every retry.
GET /transfer/{transfer_id} Returns transfer details and status by ID or business reference.
Request headers
string
required
Bearer API Key.
string
required
Unix seconds, within five minutes of server time.
string
required
Unique per request, 16–64 characters.
string
required
Lowercase hexadecimal HMAC-SHA256 signature for the exact request body.
Request parameters
string
required
Transfer ID
string
10 digits; omit for merchant apps, required for service-provider apps
string
Look up by business reference
Response
string
required
Transfer ID
string
required
Merchant ID
string
Business reference
string
required
on_ramp, off_ramp, swapstring
Executed quote ID
string
Deposit record for
on_rampstring
Sell currency
string
Buy currency
string
Source network
string
Target network
integer
Sell amount excluding fees
integer
Buy amount; estimate under floating
string
fixed or floating
string
Rate, decimal string
integer
Fee
string
Fee currency
string
Source account
string
Target account
string
Recipient ID
object
Address and memo, or bank fields
string
required
processing,
payment_submitted, completed, funds_refunded, bounced_backstring
Failure reason
object
Custom metadata
integer
required
Creation time
integer
Last update time
Status and errors
404 when missing or owned by another merchant. State machine: processing →payment_submitted → completed. Terminal states also include funds_refunded and bounced_back, with the reason recorded in failure_reason. Transitions are pushed as transfer.* webhook events and can also be polled through the transfer query endpoint.
curl --request GET \
--url "https://api.stablepay.co/api/v1/transfer/{transfer_id}" \
--header "Authorization: Bearer <API_KEY>" \
--header "X-StablePay-Timestamp: <TIMESTAMP>" \
--header "X-StablePay-Nonce: <NONCE>" \
--header "X-StablePay-Signature: <SIGNATURE>"
const response = await fetch("https://api.stablepay.co/api/v1/transfer/{transfer_id}", {
method: "GET",
headers: {
"Authorization": "Bearer <API_KEY>",
"X-StablePay-Timestamp": "<TIMESTAMP>",
"X-StablePay-Nonce": "<NONCE>",
"X-StablePay-Signature": "<SIGNATURE>"
}
});
console.log(await response.json());
{
"transfer_id": "9000000011",
"merchant_id": "2000000001",
"transfer_type": "on_ramp",
"quote_id": "9000000017",
"fiat_deposit_id": "9000000090",
"source_amount": 100500,
"target_amount": 100479,
"rate_type": "fixed",
"rate": "0.9998",
"fee_amount": 5,
"fee_currency": "USD",
"target_account_no": "00000001",
"status": "processing",
"created": 1718726400
}
Last modified on October 29, 2026
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