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WEBHOOK
BILLING_DEPOSIT_DETECTED
{
  "event":       "BILLING_DEPOSIT_DETECTED",
  "eventId":     "evt_01HXY123456ABCDEF",
  "businessId":  "BUS1A2B3C4D5E6F",
  "environment": "LIVE",
  "timestamp":   "2026-06-05T13:58:00Z",
  "data": {
    "depositId": "dep_01HXYZ2222ABCDEF1111",
    "amount":    100.00,
    "currency":  "USDT",
    "network":   "TRC20",
    "txHash":    "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
    "timestamp": "2026-06-05T13:58:00Z"
  }
}

{}
Fires when an inbound crypto transfer to your program’s deposit address is detected on-chain with 0 confirmations. The deposit is not yet credited — wait for BILLING_DEPOSIT_CONFIRMED before treating funds as available.

​
Event Type

BILLING_DEPOSIT_DETECTED

​
Payload

{
  "event":       "BILLING_DEPOSIT_DETECTED",
  "eventId":     "evt_01HXY123456ABCDEF",
  "businessId":  "BUS1A2B3C4D5E6F",
  "environment": "LIVE",
  "timestamp":   "2026-06-05T13:58:00Z",
  "data": {
    "depositId": "dep_01HXYZ2222ABCDEF1111",
    "amount":    100.00,
    "currency":  "USDT",
    "network":   "TRC20",
    "txHash":    "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
    "timestamp": "2026-06-05T13:58:00Z"
  }
}

​
Payload Fields

FieldTypeDescription
depositIdstringUnique deposit identifier assigned by FYATU
amountnumberDeposit amount in dollars
currencystringToken symbol — USDT or USDC
networkstringBlockchain network — TRC20 or ERC20
txHashstringBlockchain transaction hash
timestampstringISO 8601 timestamp of detection
For the full event group documentation see Billing Events. 
{
  "event":       "BILLING_DEPOSIT_DETECTED",
  "eventId":     "evt_01HXY123456ABCDEF",
  "businessId":  "BUS1A2B3C4D5E6F",
  "environment": "LIVE",
  "timestamp":   "2026-06-05T13:58:00Z",
  "data": {
    "depositId": "dep_01HXYZ2222ABCDEF1111",
    "amount":    100.00,
    "currency":  "USDT",
    "network":   "TRC20",
    "txHash":    "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
    "timestamp": "2026-06-05T13:58:00Z"
  }
}

{}

Authorizations

​
Authorization
string
header
required

API key from the FYATU CaaS portal. Pass as Authorization: Bearer <key>.

Body

application/json
​
event
string
Example:

"BILLING_DEPOSIT_DETECTED"

​
eventId
string
​
businessId
string
​
environment
enum<string>
Available options:
LIVE,
SANDBOX
​
timestamp
string<date-time>
​
data
object

Response

200

Acknowledge the event.