fix: use free valory RPC

Author: angrybayblade

operate/ledger/__init__.py

@@ -28,15 +28,13 @@
 from operate.types import ChainType, LedgerType
 
 
-ETHEREUM_PUBLIC_RPC = "https://ethereum.publicnode.com"
-GNOSIS_PUBLIC_RPC = "https://gnosis-rpc.publicnode.com"
-GOERLI_PUBLIC_RPC = "https://ethereum-goerli.publicnode.com"
-SOLANA_PUBLIC_RPC = "https://api.mainnet-beta.solana.com"
+ETHEREUM_PUBLIC_RPC = os.environ.get("DEV_RPC", "https://ethereum.publicnode.com")
+GNOSIS_PUBLIC_RPC = os.environ.get("DEV_RPC", "https://gnosis-rpc.publicnode.com")
+GOERLI_PUBLIC_RPC = os.environ.get("DEV_RPC", "https://ethereum-goerli.publicnode.com")
+SOLANA_PUBLIC_RPC = os.environ.get("DEV_RPC", "https://api.mainnet-beta.solana.com")
 
 ETHEREUM_RPC = os.environ.get("DEV_RPC", "https://ethereum.publicnode.com")
-GNOSIS_RPC = os.environ.get(
-    "DEV_RPC", "https://go.getblock.io/2a1fa1ade5d547ca86eab099c35ce2a7"
-)
+GNOSIS_RPC = os.environ.get("DEV_RPC", "https://rpc-gate.autonolas.tech/gnosis-rpc/")
 GOERLI_RPC = os.environ.get("DEV_RPC", "https://ethereum-goerli.publicnode.com")
 SOLANA_RPC = os.environ.get("DEV_RPC", "https://api.mainnet-beta.solana.com")
 

scripts/fund.py

@@ -11,13 +11,15 @@
 
 load_dotenv()
 
+RPC = os.environ.get("DEV_RPC", "http://localhost:8545")
+
 OLAS_CONTRACT_ADDRESS_GNOSIS = "0xcE11e14225575945b8E6Dc0D4F2dD4C570f79d9f"
 
 
 def fund(address: str, amount: float = 10.0) -> None:
     """Fund an address."""
     staking_keys_path = os.environ.get("STAKING_TEST_KEYS_PATH", None)
-    ledger_api = EthereumApi(address="http://localhost:8545")
+    ledger_api = EthereumApi(address=RPC)
     crypto = EthereumCrypto("scripts/keys/gnosis.txt")
     tx = ledger_api.get_transfer_transaction(
         sender_address=crypto.address,

scripts/transfer_olas.py

@@ -9,20 +9,22 @@
 """
 
 import json
+import os
 import sys
 from pathlib import Path
 
 from aea_ledger_ethereum.ethereum import EthereumApi, EthereumCrypto
 
 
+RPC = os.environ.get("DEV_RPC", "http://localhost:8545")
 OLAS_CONTRACT_ADDRESS_GNOSIS = "0xcE11e14225575945b8E6Dc0D4F2dD4C570f79d9f"
 WEI_MULTIPLIER = 1e18
 
 
 def fund(wallet: str, address: str, amount: float = 20.0) -> None:
     """Fund wallet with OLAS token"""
     staking_wallet = EthereumCrypto(wallet)
-    ledger_api = EthereumApi(address="http://localhost:8545")
+    ledger_api = EthereumApi(address=RPC)
     olas_contract = ledger_api.api.eth.contract(
         address=ledger_api.api.to_checksum_address(OLAS_CONTRACT_ADDRESS_GNOSIS),
         abi=json.loads(