Quick Reference

Prerequisites

1. Whitelist your EOA address by reaching out here

2. Deploy Proposer Contract

3. Submit EIP-7702 Transaction to associate your Proposer with your EOA

4. Fund GasTank with ETH to cover gas costs for your future transactions

RPC Endpoints

Environment	URL
Hoodi	https://da-builder.hoodi.spire.dev/
Mainnet	https://da-builder.mainnet.spire.dev/

Contract Addresses

Environment	Hoodi	Mainnet
GasTank	0x18Fa15ea0A34a7c4BCA01bf7263b2a9Ac0D32e92	0x2565c0A726cB0f2F79cd16510c117B4da6a6534b
ProposerMulticall	0x5132dCe9aD675b2ac5E37D69D2bC7399764b5469	0x9ccc2f3ecdE026230e11a5c8799ac7524f2bb294
TrustlessProposer	0x64568c70A52d289DF196dC7f33e38B0E58A16567	0x1b3068A7dC934cCEBF7784cBd9266D80948a98A1
TrustedProposer	0xb3b91b87183e74102AAb105F04b7160201DdF8c4	0xC09f597034f654283a05B058EE1306534b837868

Supported RPC Methods

Method	Description
eth_sendRawTransaction	Submit transaction. note: will not increment the EOA's nonce.
eth_getTransactionReceipt	Track transaction status
eth_sendBundle	A simplified version of eth_sendBundle which accepts two parameters (txs and blockNumber) but txs must contain only 1 tx. note: will not increment the EOA's nonce.
dab_accountInfo	Custom RPC Extension. Takes 1 account string and returns the account balance in the GasTank and the outstanding charges

Common Error Codes

Error	Meaning	Solution
Account not found	Account not funded	Deposit funds to GasTank
Insufficient balance.	Low balance	Add more funds
Transaction not found	Transaction not yet included	Wait and retry

Transaction Lifecycle

1. Submit → Receive transaction ID

2. Poll → Check status with eth_getTransactionReceipt

3. Included → Get blockchain hash from receipt

4. Confirmed → Transaction on-chain

Cost Structure

• Blob Gas: Shared across aggregated transactions

• Execution Gas: Based on your transaction's gas usage (intrinsic gas fee is shared)

• Service Fee: Small aggregation fee

Support

Please reach out to us at [email protected] !