> For the complete documentation index, see [llms.txt](https://use.temporal.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://use.temporal.xyz/nozomi/transaction-submission-json-rpc/python.md).

# Python

Use full service RPC for fetching latest blockhash.. Nozomi only supports sendTransaction.

```python
import asyncio

from typing import List

from solders.pubkey import Pubkey
from solders.keypair import Keypair
from solders.signature import Signature
from solders.instruction import Instruction
from solana.transaction import Transaction
from solders.system_program import transfer, TransferParams

from solana.rpc.async_api import AsyncClient

NOZOMI_ENDPOINT = "https://nozomi.temporal.xyz/?c=<YOUR_API_KEY>"
NOZOMI_TIP = Pubkey.from_string("TEMPaMeCRFAS9EKF53Jd6KpHxgL47uWLcpFArU1Fanq")
MIN_TIP_AMOUNT = 1_000_000

SOLANA_RPC_ENDPOINT = "https://api.mainnet-beta.solana.com"

async def send_nozomi_txn(ixns: List[Instruction], signer: Keypair, nozomi_rpc_client: AsyncClient, solana_rpc_client: AsyncClient) -> Signature:
    tip_ixn = transfer(TransferParams(
        from_pubkey=signer.pubkey(),
        to_pubkey=NOZOMI_TIP,
        lamports=MIN_TIP_AMOUNT
    ))
    ixns.append(tip_ixn)

    blockhash = (await solana_rpc_client.get_latest_blockhash()).value.blockhash
    txn = Transaction()

    for ixn in ixns:
        txn.add(ixn)

    # solanapy does not expose an encoding option via TxOpts
    return (await nozomi_rpc_client.send_transaction(txn, signer, recent_blockhash=blockhash)).value

def build_ixns() -> List[Instruction]:
    # your instruction building logic here..
    return []

async def main():
    nozomi_rpc_client = AsyncClient(NOZOMI_ENDPOINT)

    solana_rpc_client = AsyncClient(SOLANA_RPC_ENDPOINT)

    # replace with actual keypair loading logic
    signer = Keypair()

    ixns = build_ixns()

    signature = await send_nozomi_txn(ixns, signer, nozomi_rpc_client, solana_rpc_client)

    print(f"Transaction sent with signature: {signature}")

if __name__ == "__main__":
    asyncio.run(main())
```


---

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