Tool detail

storage

Returns the raw value of one storage slot for a given contract address via eth_getStorageAt.

Categories: Onchain data

Use when

read a specific storage slot from an Ethereum smart contract
inspect low-level on-chain contract state for debugging

Not for

not for decoded/human-readable contract data — raw storage slot only
not for chains other than ethereum, sepolia or robinhood

Inputs

GET query params: contract (0x address, required), slot (0x hex, required), block (int/enum/hex, optional), network (enum, optional, default ethereum)

Inputs undocumented: unsupported schema construct: oneOf

Endpoint

Method: GET
URL: https://api.onesource.io/api/chain/storage

Payment

Protocol: x402
Listed price: 0.005 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://api.onesource.io/api/chain/storage
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z