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Wallet Portfolio USD Value (Ethereum & Base)
x402
Wallet Portfolio USD Value (Ethereum & Base) is a paid API for AI agents from x402-gateway.blackwoodstate8.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-19).
Returns the total USD value, native and major-token balances, and per-chain totals for a 0x wallet address on Ethereum and Base, priced via Uniswap v3 pools.
Price / call$0.003
Success—
StatusUnknown
How this service works
Use when you need a wallet portfolio value in USD, a wallet net worth or token balances with USD value for a 0x address. Do not use for solana wallets, transaction history, NFTs, DeFi positions or long-tail tokens. Returns JSON with a wallet's USD value on Ethereum and Base in one call: native and major-token balances priced on-chain from Uniswap v3 pools on Base, per-chain totals and the tokens left unpriced for 0.005 USDC per call. Typical response time 5000 ms (p95). Category: Trading.
Output
Returns a JSON object with the wallet's total USD value, per-chain USD totals (Ethereum and Base), native and major ERC-20 token balances with individual USD prices sourced from Uniswap v3 on-chain pools, a list of tokens that could not be priced, any per-chain errors, a timestamp, and an optional suggested next call.
Example use cases
Personal portfolio net worth check
“What's my wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 worth in USD right now across Ethereum and Base? Break it down by chain for me.”
Due diligence on a counterparty wallet
“Before we proceed, can you look up what 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B holds across Ethereum and Base and give me the total USD value?”
Base-only wallet valuation
“What's the USD value of the wallet 0x1234567890abcdef1234567890abcdef12345678 on Base only — just Base, not Ethereum?”
Technical details
Endpoint
POSThttps://x402-gateway.blackwoodstate8.workers.dev/v1/wallet-value?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, single-call USD net worth or token balance snapshot for a 0x wallet address on Ethereum and/or Base. It is ideal for major EVM tokens priced on-chain via Uniswap v3. Prefer alternatives for Solana wallets, NFT valuations, DeFi position breakdowns, transaction history, or long-tail token pricing.
Side effects
- Invalid 0x address format returns validation error
- Solana or non-EVM addresses are not supported
- Long-tail or obscure tokens are returned in the unpriced list rather than valued
- RPC or on-chain data unavailability may cause per-chain errors
- High latency (~5 s p95) may cause timeouts in low-timeout agent pipelines
- NFTs, DeFi positions, and staked assets are not included in the valuation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "USD values use the on-chain price of the same asset on Base: its deepest Uniswap v3 pool against USDC or WETH (USDC counts as 1 USD). Ethereum tokens are priced through their Base counterpart (same issuer or canonical bridge); tokens without one, or without a liquid pool, are listed in unpriced and left out of the totals. Balances cover the native coin and a fixed list of major tokens; values are rounded to cents.",
"chains": {
"base": 8.47,
"ethereum": null
},
"errors": {},
"address": "0x87DB3C25d1E8E40f8EF240D48a711B0C355CF8Cf",
"holdings": [
{
"chain": "base",
"symbol": "ETH",
"balance": "0.002360178464231316",
"contract": null,
"priceUsd": 2420.0937,
"valueUsd": 5.71
},
{
"chain": "base",
"symbol": "USDC",
"balance": "2.756539",
"contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"priceUsd": 1,
"valueUsd": 2.76
}
],
"totalUsd": 8.47,
"unpriced": [],
"updatedAt": "2026-10-18T04:14:44.193Z"
}
}Tags
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