# Contract Storage Slot Reader (BSC)

> 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 2026-10-02).

Reads the raw value stored at slot 0 of a smart contract's storage on the Binance Smart Chain

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/bsc/storage/:address/0?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/contract-storage-slot-reader-bsc-c6e657f4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nccUxjdbZL8Fcyknbkxdv

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability contract-storage-slot-reader-bsc-c6e657f4
```

Example prompt: What's the raw value stored at storage slot 0 of the BSC contract at address 0x1234...abcd? Fetch it directly from on-chain data.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/contract-storage-slot-reader-bsc-c6e657f4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)