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Saylor Innovations EVM Storage Slot Reader (Optimism)
x402
Saylor Innovations EVM Storage Slot Reader (Optimism) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).
Reads the raw value stored at storage slot 0 of a given contract address on the Optimism network
Price / call$0.002
Success—
StatusUnknown
How this service works
Contract Storage Slot (optimism). Optimism contract storage slot read: raw 32-byte value plus uint and address decodings.
Output
Returns the raw hexadecimal value stored at storage slot index 0 of the specified contract on the Optimism network, representing the first 32-byte word of the contract's persistent storage (commonly used for owner addresses, counters, or packed state variables).
Example use cases
DeFi protocol state inspection
“Can you read storage slot 0 of the Optimism contract at 0x7F5c764cBc14f9669B88837ca1490cCa17c31607? I want to check the current packed state variable stored there.”
Smart contract debugging
“I'm debugging a smart contract deployed on Optimism at address 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45 — can you fetch what's currently stored at its slot 0 so I can verify the owner variable?”
On-chain audit verification
“For my audit report, I need the raw on-chain storage value at slot 0 of the Optimism contract 0x1F98431c8aD98523631AE4a59f267346ea31F984 — can you pull that directly from the chain?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/evm/optimism/storage/:address/0?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to directly inspect raw EVM storage at slot 0 for a contract deployed on Optimism L2, particularly useful for auditing, debugging, or monitoring contract state variables that are stored at the first storage position. Prefer this over full contract ABI calls when you need low-level, trustless storage data without ABI decoding.
Side effects
- Invalid or malformed contract address returns an error
- Contract address does not exist on Optimism returns zero value or error
- Network congestion may cause delayed response
- Non-contract EOA address may return zero value
- RPC node unavailability causes service errors
Tags
x402
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