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Vextorium Multichain EVM Balances
x402
Vextorium Multichain EVM Balances is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-15).
Returns native token and USDC balances across Ethereum, Base, Polygon, Arbitrum, and Optimism for a given wallet address, with approximate USD values.
Price / call$0.008
Success—
StatusUnknown
How this service works
558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.
Output
A JSON object keyed by network (ethereum, base, polygon, arbitrum, optimism), each containing the native token symbol, native balance, USDC balance, and approximate USD value. Also includes a top-level total_value_usd_approx field summing all networks, plus the queried address and a note about valuation caveats (e.g. POL is not USD-valued).
Example use cases
Portfolio value check before DeFi move
“Before I bridge funds, can you check how much ETH and USDC I have across Ethereum, Base, Arbitrum, Optimism, and Polygon for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and tell me the total USD value?”
Multichain holdings audit for a DAO treasury
“I need a full breakdown of native coin and USDC balances on every major EVM chain for treasury wallet 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — what's held where and what's the approximate total in USD?”
Track user wallet balances in a crypto app
“For the address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e, pull the ETH and USDC balances on Ethereum, Base, Optimism, Arbitrum, and Polygon with their USD values so I can display a portfolio summary.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/multichain-balances?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a single call to aggregate native token and USDC balances across the five major EVM networks (Ethereum, Base, Polygon, Arbitrum, Optimism) rather than querying each chain separately. It is ideal for portfolio snapshots, treasury audits, or pre-transaction balance checks. Prefer it over chain-specific endpoints when cross-chain aggregation and USD valuation are required simultaneously.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Address with no activity on a chain returns zero balances for that network
- Transient RPC node failures may result in missing data for one or more networks
- Rate limiting or payment failure returns a 402 or 429 response
- Non-EVM addresses (e.g. Solana pubkeys) will not return valid results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Wallet address |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Includes the native coin and USDC. POL (Polygon) is not valued in USD.",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"networks": {
"base": {
"usdc": 43.286078,
"native": "ETH",
"native_balance": 3.128821603472537,
"value_usd_approx": 8411.44
},
"polygon": {
"usdc": 9.885164,
"native": "POL",
"native_balance": 592.7197671566887,
"value_usd_approx": 9.89
},
"arbitrum": {
"usdc": 158.021811,
"native": "ETH",
"native_balance": 0.1594080103761386,
"value_usd_approx": 584.36
},
"ethereum": {
"usdc": 37.192124,
"native": "ETH",
"native_balance": 5.721681785331997,
"value_usd_approx": 15340.05
},
"optimism": {
"usdc": 24.433911,
"native": "ETH",
"native_balance": 0.1810695918743475,
"value_usd_approx": 508.71
}
},
"total_value_usd_approx": 24854.46
}
}Tags
x402
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