sendrawtransaction | Alchemy Docs

Broadcasts a raw transaction (hex-encoded) to the network. Useful for rebroadcasting transactions not originating from your wallet.

⚠ This endpoint is only available with Blast access.

apiKeystringRequired

This endpoint expects an object.

hexstringstringRequiredformat: "^[a-fA-F0-9]+$"

The hex-encoded raw transaction.

maxfeeratedouble or stringOptional

Reject transactions whose fee rate is higher than this value (in BTC/kB). Set to 0 to disable the check.

The transaction ID (txid) of the submitted transaction.

1	import requests
2
3	url = "https://bitcoin-mainnet.alchemy-blast.com/v2/:apiKey"
4
5	payload = {
6	"0": "0200000000010153fc6712e0c6cbfd15e56743f2a16bba3c0b17837d4fd33d68d2d930739e2b130000000000ffffffff01c0c62d0000000000160014c24b61118d4a2b36257b65e1ea7f15f85e41ff0402483045022100ac32e935715a57ec1d642a5e178c37f74c013bf8e4edc4cb1c79f5352f136e87022020b0b3192347d1b84e9b89d00a2ecb290f18f9c39e514fa3ef2b7a889e7b6c1b012103ab0b56c7aa6254a80c124e04d2149f7fc376afedfe4623f3c59b87c279eaeb1400000000",
7	"1": 0.1
8	}
9	headers = {"Content-Type": "application/json"}
10
11	response = requests.post(url, json=payload, headers=headers)
12
13	print(response.json())

1	{
2	"jsonrpc": "2.0",
3	"id": "1",
4	"result": "1b6d7a0196d78d84c31408982f8fa6bc7383d29c96c5e2b3a55e1f1575dc1cfb"
5	}