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Contract Storage Slot Reader (BSC)
x402
Contract Storage Slot Reader (BSC) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-30).
Reads the raw value stored at slot 0 of a smart contract's storage on the Binance Smart Chain
Price / call$0.002
Success—
StatusUnknown
How this service works
Contract Storage Slot (bsc). BNB Chain (BSC) raw contract storage slot read with the value also decoded as a uint256 and as an address. Use it to inspect proxy implementations, owners, paused flags and other on-chain state not exposed by a getter.
Output
Returns the raw hex-encoded value (32 bytes) stored at storage slot 0 of the specified smart contract on Binance Smart Chain, reflecting the current on-chain state at the time of the request.
Example use cases
Inspect DeFi contract owner slot
“I need to check what address or value is stored at slot 0 of this BSC DeFi contract — the address is 0xBB4CdB9CBd36B01bD1cBaEBF2De08d9173bc095b. Can you pull the raw on-chain storage value?”
Verify contract upgrade proxy target
“Can you read slot 0 of this BSC proxy contract at 0x10ED43C718714eb63d5aA57B78B54704E256024E to see what implementation address is currently stored there?”
Audit token contract storage state
“I'm auditing a BEP-20 token contract on Binance Smart Chain — can you fetch the raw storage value at slot 0 for contract 0x0E09FaBB73Bd3Ade0a17ECC321fD13a19e81cE82 so I can verify the total supply or owner variable?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/evm/bsc/storage/:address/0?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to read raw EVM storage directly from a BSC (Binance Smart Chain) contract at slot 0, without needing an ABI or decoded function calls. Ideal for inspecting proxy implementation slots, ownership variables, or low-level state debugging on BNB Chain specifically. Choose this over Arbitrum or other EVM variants when the target contract is deployed on BSC.
Side effects
- Invalid or malformed contract address returns an error or zero value
- Contract does not exist at the given address on BSC — returns zero bytes
- Network congestion or RPC node issues may cause timeout or delayed response
- Non-contract (EOA) address returns zero for all storage slots
- Rate limiting if too many requests are made in rapid succession
Tags
x402
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