# ERC-1155 Multi-Token Balance Lookup (Ethereum)

> ERC-1155 Multi-Token Balance Lookup (Ethereum) 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).

Returns the ERC-1155 token balance of a given wallet address for a specific token ID held in a given ERC-1155 contract on Ethereum mainnet.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/ethereum/erc1155-balance/:address/:address2/1?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/erc-1155-multi-token-balance-lookup-ethereum-8fc8e2f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TJ25nQZsDSjExzs5WzPXG

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 erc-1155-multi-token-balance-lookup-ethereum-8fc8e2f8
```

Example prompt: Check the ERC-1155 token balance for wallet 0xAbC...123 in the contract 0xDeF...456 on Ethereum — I need to know how many of token ID 1 they hold.

## When to prefer this

Use this endpoint when you need a fast, pay-per-call lookup of an ERC-1155 multi-token balance on Ethereum mainnet without managing your own RPC node or indexer. Prefer this over ERC-20 or ERC-721 balance endpoints when the token standard is specifically ERC-1155 (multi-token standard).

## Known failure modes

- Invalid wallet or contract address format returns an error
- Token ID not found in contract returns zero or an error
- Network congestion or RPC issues may cause timeouts
- Contract address is not an ERC-1155 contract returns an error or zero
- Wallet has no holdings returns balance of zero

## How this service works

ERC-1155 Balance (ethereum). ERC-1155 balance: how many copies of a token id a wallet holds. Any of 5 chains.

## Output

Returns an on-chain balance count representing how many units of the specified ERC-1155 token ID the queried wallet address holds within the given contract on Ethereum mainnet.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/erc-1155-multi-token-balance-lookup-ethereum-8fc8e2f8/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)