# Saylor Innovations — Arbitrum Contract Storage Slot 0 Reader

> Saylor Innovations — Arbitrum Contract Storage Slot 0 Reader 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 value stored at storage slot 0 of a given smart contract address on the Arbitrum network

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/arbitrum/storage/:address/0?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-arbitrum-contract-storage-slot-0-reader-a04b46cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_id6T3dTjMxZ2hJaphUnc3

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 saylor-innovations-arbitrum-contract-storage-slot-0-reader-a04b46cd
```

Example prompt: What value is stored at storage slot 0 of the Arbitrum smart contract at address 0x912CE59144191C1204E64559FE8253a0e49E6548?

## When to prefer this

Choose this endpoint when you need to directly inspect raw EVM storage at slot 0 of a contract deployed specifically on Arbitrum L2, without setting up your own RPC node or web3 library. It is ideal for agents that need lightweight, pay-per-call on-chain data access without managing infrastructure.

## Known failure modes

- Invalid contract address format returns an error
- Address is an EOA (not a contract) — slot 0 returns zero value
- Network connectivity issues with Arbitrum RPC node
- Contract not yet deployed at the specified address
- Rate limiting or payment failure (x402 protocol)

## How this service works

Contract Storage Slot (arbitrum). Arbitrum contract storage slot read: raw 32-byte value plus uint and address decodings.

## Output

Returns the raw 32-byte value stored at storage slot index 0 of the specified smart contract on the Arbitrum EVM network, reflecting the current on-chain state at query time.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-arbitrum-contract-storage-slot-0-reader-a04b46cd/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)