curl -X POST "https://<sandbox-host>/api/v2/wallet/transaction/unified/pool/sell" \
  -H "X-Api-Key: $API_KEY" \
  -H "X-Timestamp: $TIMESTAMP" \
  -H "X-Signature: $SIGNATURE" \
  -H "X-Request-Id: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
  "idempotency_key": "00000000-0000-4000-8000-000000000002",
  "client_reference_id": "order-12345",
  "from_currency": "USDT",
  "to_currency": "INR",
  "from_amount": "1",
  "payment_method": "bank_transfer",
  "purpose_code": "P1301",
  "sender": {
    "type": "INDIVIDUAL",
    "travel_rule_data": {
      "first_name": "Test",
      "last_name": "Sender",
      "nationality": "IND",
      "address": {
        "line1": "1 Test Street",
        "line2": "Test Area",
        "city": "Test City",
        "state": "Test State",
        "postal_code": "000000",
        "country_iso3": "ARE"
      },
      "proof_of_identification_number": "T0000000",
      "proof_of_identification_type": "PASSPORT",
      "date_of_birth": "1990-01-01",
      "email": "sender@example.com",
      "phone": "+910000000000"
    }
  },
  "beneficiary": {
    "type": "INDIVIDUAL",
    "relationship": "FAMILY",
    "travel_rule_data": {
      "first_name": "Test",
      "last_name": "Beneficiary",
      "nationality": "IND",
      "address": {
        "line1": "1 Test Street",
        "line2": "Test Area",
        "city": "Test City",
        "state": "Test State",
        "postal_code": "000000",
        "country_iso3": "IND"
      },
      "proof_of_identification_number": "T0000001",
      "proof_of_identification_type": "PASSPORT",
      "date_of_birth": "1990-01-01",
      "email": "beneficiary@example.com",
      "phone": "+910000000001"
    }
  },
  "beneficiary_instrument": {
    "type": "BANK_ACCOUNT",
    "bank_account": {
      "country": "IND",
      "account_number": "000012345678",
      "account_holder_name": "Test Beneficiary",
      "bank_name": "Test Bank",
      "bank_code": "TEST0000001",
      "account_type": "SAVINGS"
    }
  }
}'

{
  "success": true,
  "data": {
    "id": "00000000-0000-4000-8000-000000000001",
    "client_reference_id": "order-12345",
    "transaction_type": "POOL_SELL",
    "status": "CREATED",
    "reason_code": null,
    "reason_desc": null,
    "from_currency": "USDT",
    "to_currency": "INR",
    "from_amount": "1",
    "to_amount": null,
    "exchange_rate": null,
    "payment_method": "bank_transfer",
    "purpose_code": "P1301",
    "quote_id": null,
    "bank_transaction_id": null,
    "sender_id": null,
    "beneficiary_id": null,
    "beneficiary_instrument_id": null,
    "beneficiary_instrument_type": "BANK_ACCOUNT",
    "beneficiary_relationship": "FAMILY",
    "created_at": 1793024948016,
    "updated_at": 1793024948016
  }
}

{"success":false,"errors":[{"code":403013,"text":"idempotency key already used"}]}

{"success":false,"errors":[{"code":400001,"text":"missing or invalid parameters: beneficiary.travel_rule_data.nationality: must be IND for a beneficiary without a proof of identification"}]}

{"success":false,"errors":[{"code":414011,"text":"beneficiary instrument country does not match the payout currency"}]}