Send BTC from a Mainnet Wallet

Once a wallet has confirmed balance, you can send BTC to another address using wallet_send.

Command:

curl -sS -X POST "https://api.subtc.net/v1/btc?mode=wallet_send" \
-H "X-SUBTC-KEY: $KEY" \
-H "X-SUBTC-IDEMPOTENCY: send-$(date +%s)" \
-H "Content-Type: application/json" \
-d "{\"wallet_id\":\"$WID\",\"to\":\"bc1q9z7mhf2lhhyhultlqc0q3elnttalscyfddyqzy\",\"amount_sat\":30000}"

Example response:

{
 "ok": true,
 "request_id": "b10b876689083d8f",
 "result": {
  "coin": "btc",
  "net": "main",
  "requested_sat": 30000,
  "sent_sat": 29100,
  "service_fee_sat": 900,
  "fee_bps": 300,
  "send_method": "sendmany",
  "txid": "2ffcae3cae63a96ef69089f9f47f5d013e2099302a70381b8a958abc7599517d",
  "wallet_id": "w_87d2a561cdd665948c1d756106f7b2179327927c3b8c"
 }
}

What happened:

The wallet attempted to send **30,000 SAT**.

Service fee (3%) = **900 SAT**
Amount delivered to the destination = **29,100 SAT**

Transaction ID:

2ffcae3cae63a96ef69089f9f47f5d013e2099302a70381b8a958abc7599517d

The idempotency header ensures the request cannot create duplicate transactions if retried.

API Base:
https://subtc.net/api