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Avasis ETH Multi-Balance Lookup
x402
Avasis ETH Multi-Balance Lookup is a paid API for AI agents from agents.avasis.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Returns ETH balance, USDC balance, and up to 10 ERC-20 token balances with USD prices for any Ethereum wallet or contract address in one call.
Price / call$0.02
Success—
StatusUnknown
How this service works
Solana rug check + token risk score in one x402 call: $0.02 complete multi-source kit (verdict + holders + Jupiter + RugCheck + Dexscreener + consensus). Polymarket odds kit $0.02: event + books + history. Avasis is a research company building a platform made for agents: data an agent buys per call, x402 v1 + v2, USDC on Base, no account or API key. Headline calls: the $0.02 Solana rug check complete kit (is this token safe? token risk score from verdict + holders + Jupiter + RugCheck + Dexscreener + consensus in one payment; ax1 alternative), the $0.02 Polymarket odds complete kit (prediction market kit: event + books + history + every outcome with token ids + consistency checks in one payment), the $0.01 Solana token verdict (SAFE / WARN / DANGER from a deterministic on-chain rubric + share card + free receipt), the $0.002 web page reader (any public URL to clean markdown + metadata), $0.002 Polymarket markets (live odds, volume, liquidity). Other paid routes stay live and are listed in /.well-known/x402 and /pricing.md. Never charged on errors.
Output
Returns a JSON object with ETH balance (amount, wei, USD value, Chainlink price), USDC balance, an array of requested ERC-20 token balances (amount, raw, decimals, USD price, price source), aggregated totals in USD, gas cost estimates and how many ETH transfers the wallet can afford, transaction count, block number, contract/EOA flag, and a human-readable headline string summarizing the portfolio.
Example use cases
DeFi portfolio snapshot for a wallet
“Can you check the full token portfolio of 0xf977814e90da44bfa03b6295a0616a897441acec on Ethereum — I want ETH, USDC, WETH, and any other major tokens, all priced in USD with a total?”
Gas affordability check before a transaction
“Before I send a transaction from 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, can you check how much ETH it holds and whether it can afford gas for standard ETH transfers?”
Smart contract treasury audit
“Pull the ETH and stablecoin balances for the contract at 0x3300f198988e4C9C63F75dF86De36421f06af8c1 on Ethereum — include USDC, USDT, and DAI — and tell me the total USD value held.”
Technical details
Endpoint
GEThttps://agents.avasis.ai/v1/eth/multi-balance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a complete multi-asset Ethereum portfolio snapshot — ETH plus multiple ERC-20s with live USD prices — in a single x402 micropayment call with no API key or account setup. It is ideal for agents that need to assess wallet holdings, check gas affordability, or audit contract treasuries on Ethereum mainnet. Prefer it over individual balance checks when you need aggregated USD totals and gas estimates simultaneously at $0.02 per call.
Side effects
- Invalid or malformed wallet address returns an error
- Unsupported chain specified (only Ethereum/chain 1 on this route)
- More than 10 token addresses requested exceeds the limit
- Unknown token symbol not in the known-symbols list may return null price
- RPC timeout or node unavailability may delay response
- Token with no liquidity may return unpriced entry in totals.unpriced array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"eth": {
"usd": 94.43,
"wei": "42100000000000000",
"price": 2242.9,
"amount": "0.0421",
"price_source": "chainlink ETH/USD (latestRoundData)"
},
"gas": {
"note": "21000 gas at 2x the current base fee + 0.001 gwei tip; excludes the Base L1 data fee (~$0.0003-0.001 per tx); contract calls cost more: /v1/evm/gas-ops prices them",
"base_fee_gwei": 0.005,
"can_pay_eth_transfer": true,
"eth_transfer_cost_eth": "0.000000231",
"eth_transfer_cost_usd": 0.0005181,
"eth_transfer_cost_wei": "231000000000",
"eth_transfers_affordable": 182251
},
"kind": "multi-balance",
"rail": "evm-rails-1",
"usdc": {
"usd": 15115.05,
"error": null,
"amount": "15115.05",
"address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
},
"chain": "ethereum",
"empty": false,
"reads": {
"rpc": "fixture",
"calls": 8,
"elapsed_ms": 0
},
"tokens": [
{
"raw": "15115050000",
"usd": 15115.05,
"error": null,
"known": "USDC (Circle)",
"price": 1,
"amount": "15115.05",
"symbol": "USDC",
"address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"decimals": 6,
"price_source": "stablecoin peg (known issuer)"
},
{
"raw": "250000000000000000",
"usd": 560.73,
"error": null,
"known": "WETH (canonical)",
"price": 2242.9,
"amount": "0.25",
"symbol": "WETH",
"address": "0x4200000000000000000000000000000000000006",
"decimals": 18,
"price_source": "chainlink ETH/USD (latestRoundData)"
},
{
"raw": "120000",
"usd": 131.85,
"error": null,
"known": "cbBTC (Coinbase)",
"price": 109876.5,
"amount": "0.0012",
"symbol": "cbBTC",
"address": "0xcbb7c0000ab88b473b1f5afd9ef808440eed33bf",
"decimals": 8,
"price_source": "dexscreener aerodrome (liquidity $12,345,678)"
}
],
"totals": {
"usd": 15902.06,
"note": "ETH + priced tokens at current prices",
"complete": true,
"unpriced": []
},
"address": "0xf977814e90da44bfa03b6295a0616a897441acec",
"chain_id": 1,
"headline": "0xf977…acec on Base: 0.0421 ETH ($94.43), 15,115.05 USDC, 0.25 WETH, 0.0012 cbBTC; total $15,902.06; gas for 182251 ETH transfers",
"tx_count": 499417,
"is_contract": false,
"block_number": 53354727,
"block_timestamp": 1793498801
}
}Tags
x402
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