Base Chain

Read balances, blocks, transactions, receipts, logs and contract state, estimate gas, call and simulate contracts, broadcast signed transactions, check mempool status and trace transactions, with Flashblocks pre-confirmed state.

Authentication

This connector uses Token-based authentication.

info

Set up your connection in the Abstra Console before using it in your workflows.

How to use

Using the Smart Chat

Execute the action "CHOOSE_ONE_ACTION_BELOW" from my connector "YOUR_CONNECTOR_NAME" using the params "PARAMS_HERE".

Using the Web Editor

from abstra.connectors import run_connection_action

result = run_connection_action(
  connection_name="your_connection_name",
  action_name="your_action_name",
  params={
    "param1": "value1",
    "param2": "value2"
  })

Available Actions

This connector provides 30 actions:

Action	Purpose	Parameters
eth_block_number	Returns the number of the most recently mined block, as a hex quantity.	No parameters
eth_get_balance	Returns the ETH balance of an account in wei, as a hex quantity, at the given block. Use pending for the 200ms pre-confirmed balance.	address (string) required block (string) required
eth_get_transaction_count	Returns the number of transactions sent from an address its nonce, as a hex quantity. Use pending to get the pre-confirmed nonce.	address (string) required block (string) required
eth_get_code	Returns the bytecode deployed at an address 0x for accounts without code. Use pending to detect contracts deployed before the block seals.	address (string) required block (string) required
eth_get_storage_at	Returns the 32-byte value stored in a contract storage slot. Use pending for pre-confirmed storage reads.	address (string) required position (string) required block (string) required
eth_call	Executes a message call without broadcasting a transaction no gas is spent on-chain and returns the hex-encoded return data. Used to read contract state or simulate calls. Use pending to run against the pre-confirmed Flashblock state.	transaction: { . from (string) . to (string) . gas (string) . gasPrice (string) . maxFeePerGas (string) . maxPriorityFeePerGas (string) . value (string) . data (string) } (object) required block (string) required
eth_get_block_by_number	Returns a block by number or tag, or null if it does not exist. With pending, returns the live pre-confirmed Flashblock, updated every ~200ms.	block (string) required fullTransactions (boolean) required
eth_get_block_by_hash	Returns a block by its hash, or null if it does not exist.	blockHash (string) required fullTransactions (boolean) required
eth_get_block_receipts	Returns all transaction receipts of a block. Use pending for pre-confirmed receipts.	block (string) required
eth_get_block_transaction_count_by_number	Returns the number of transactions in a block, by number or tag, as a hex quantity.	block (string) required
eth_get_block_transaction_count_by_hash	Returns the number of transactions in a block, by block hash, as a hex quantity.	blockHash (string) required
eth_get_transaction_by_hash	Returns a transaction by its hash, or null if it is not known.	transactionHash (string) required
eth_get_transaction_by_block_hash_and_index	Returns the transaction at the given index of the block with the given hash.	blockHash (string) required index (string) required
eth_get_transaction_by_block_number_and_index	Returns the transaction at the given index of the block with the given number or tag.	block (string) required index (string) required
eth_get_transaction_receipt	Returns the receipt of a mined transaction, or null before it is included in a block. Base receipts also carry the L1 data fee fields l1Fee, l1GasUsed, l1GasPrice, ....	transactionHash (string) required
eth_send_raw_transaction	Submits a pre-signed, RLP-encoded transaction to the network and returns its hash. Base endpoints are Flashblocks-enabled, so the transaction is considered for the next ~200ms Flashblock.	data (string) required
eth_gas_price	Returns the current gas price in wei, as a hex quantity.	No parameters
eth_max_priority_fee_per_gas	Returns the suggested EIP-1559 priority fee tip per gas in wei, as a hex quantity.	No parameters
eth_fee_history	Returns base fees, gas used ratios and priority fee percentiles for a range of blocks. Useful for fee estimation.	blockCount (string) required newestBlock (string) required rewardPercentiles (array) required
eth_estimate_gas	Estimates the gas a transaction needs, as a hex quantity, without broadcasting it. Use pending to estimate against pre-confirmed state.	transaction: { . from (string) . to (string) . gas (string) . gasPrice (string) . maxFeePerGas (string) . maxPriorityFeePerGas (string) . value (string) . data (string) } (object) required block (string)
eth_get_logs	Returns the logs matching a filter; Base logs also carry blockTimestamp. Keep fromBlock-toBlock ranges under 2,000 blocks for reliable results providers may enforce their own limits. Use pending to include logs from pre-confirmed transactions.	filter: { . fromBlock (string) . toBlock (string) . address . topics (array) . blockHash (string) } (object) required
eth_chain_id	Returns the chain ID as a hex quantity: 0x2105 8453 on Base Mainnet, 0x14a34 84532 on Base Sepolia.	No parameters
eth_syncing	Returns the sync status of the node, or false when it is fully synced.	No parameters
net_version	Returns the network ID as a decimal string: 8453 on Base Mainnet, 84532 on Base Sepolia.	No parameters
web3_client_version	Returns the client version string of the node.	No parameters
eth_simulate_v1	Simulates one or more transaction bundles against the pre-confirmed Flashblock state, with optional state and block overrides, multi-block simulation and ETH transfer tracing. Returns one simulated block per entry of blockStateCalls, each with its call results. Only available on Flashblocks endpoints https://mainnet.base.org, https://sepolia.base.org.	simulationPayload: { . blockStateCalls (array) . traceTransfers (boolean) . validation (boolean) } (object) required blockParameter (string) required
base_transaction_status	Checks whether a transaction is in the node mempool: returns 'status': 'Known' if it is, 'status': 'Unknown' if the node has not seen it. Use it to confirm a submitted transaction was received before it appears in a Flashblock. Only available on Flashblocks endpoints, and not every endpoint serves it; when it is unavailable the node error is returned.	transactionHash (string) required
debug_trace_transaction	Replays a transaction and returns its full EVM execution trace: struct logs by default, or a call tree with tracer: callTracer. Computationally expensive; requires an RPC provider with debug APIs enabled the public Base endpoints reject debug methods.	transactionHash (string) required traceOptions: { . tracer (string) . tracerConfig (object) . disableStorage (boolean) . disableMemory (boolean) . disableStack (boolean) . timeout (string) } (object)
debug_trace_block_by_hash	Replays every transaction of the block with the given hash and returns one trace per transaction txHash and result. Computationally expensive; requires an RPC provider with debug APIs enabled the public Base endpoints reject debug methods.	blockHash (string) required traceOptions: { . tracer (string) . tracerConfig (object) . disableStorage (boolean) . disableMemory (boolean) . disableStack (boolean) . timeout (string) } (object)
debug_trace_block_by_number	Replays every transaction of the block with the given number or tag and returns one trace per transaction. Computationally expensive; requires an RPC provider with debug APIs enabled the public Base endpoints reject debug methods.	block (string) required traceOptions: { . tracer (string) . tracerConfig (object) . disableStorage (boolean) . disableMemory (boolean) . disableStack (boolean) . timeout (string) } (object)