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Saylor Innovations Data Desk – ERC-20 Token Balance
x402
Saylor Innovations Data Desk – ERC-20 Token Balance is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Returns the ERC-20 token balance of a wallet address on any of 16 supported EVM chains, including raw and decimal-scaled amounts, token symbol, and token name.
Price / call$0.01
Success—
StatusUnknown
How this service works
ERC-20 token balance of a wallet on 16 EVM chains, raw and decimal-scaled, with the token symbol and name, read through balanceOf.
Output
A JSON object containing the queried chain name and EIP-155 chain ID, the wallet address, the token contract address, the raw balance (smallest unit string), the decimal-scaled balance (string or null), token decimals, token symbol, token name, and a source field indicating where the data was read from (on-chain RPC).
Example use cases
DeFi eligibility check before airdrop
“Check if wallet 0xDe...456 holds at least 1000 ARB tokens on Arbitrum — give me the exact balance in both raw and decimal form so I can see if they qualify.”
Portfolio tracker balance refresh
“Pull the current USDT balance on Polygon for wallet 0xFa...789, including the token symbol and decimals, so I can update the user's portfolio dashboard.”
Smart contract audit pre-flight
“Before we proceed, read the WETH balance of address 0x11...222 on Optimism from the actual contract using balanceOf — I need the raw value and the decimal-scaled amount.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/chain/erc20-balance?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need on-chain ERC-20 token balance data for a specific wallet across any of 16 supported EVM chains, particularly when you require both the raw smallest-unit value and the human-readable decimal-scaled amount together with token metadata (symbol, name, decimals) in a single call. Prefer this over generic RPC calls when you want a simple REST interface without managing Web3 providers or ABI encoding yourself.
Side effects
- Invalid or unsupported chain name/ID returns an error
- Malformed wallet or token contract address returns an error
- Token contract address that is not an ERC-20 may return null or zero balance
- Network RPC unavailability causes a timeout or upstream error
- Token with no decimals metadata returns null for balance and decimals fields
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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