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NetIntel Wallet Balance Lookup
x402
NetIntel Wallet Balance Lookup is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns native token, USDC, and optional ERC-20 token balances for a given wallet address on Base, Ethereum, or Solana
Price / call$0.005
Success—
StatusUnknown
How this service works
Network intelligence API — 138 endpoints, all pay-per-call via x402 micropayments (USDC on Base or Solana mainnet). NetIntel is agent fair-trade aligned: transparent per-call pricing in USDC on Base or Solana via x402, no API keys or signup, and automatic no-charge on server errors, upstream failures, and input-validation rejections — failed calls are never billed across NetIntel's network, domain, and data-intelligence endpoints.
Output
Returns a JSON object with the wallet's native token balance (raw wei/lamports, formatted amount, symbol, and USD value), USDC balance (raw, formatted, and USD), an array of any requested ERC-20 token balances, the chain name, the RPC source URL used, a stale flag, cache age in seconds, and an empty findings array.
Example use cases
DeFi agent treasury check
“Can you check the current ETH and USDC balance on Base for our treasury wallet 0xABC123...def456? I need to know if we have enough USDC to cover the next round of payments.”
Solana wallet portfolio snapshot
“What's the current SOL balance and its USD value for the Solana wallet 5FHwkrdxkjd...9sPq? I want to see how much native SOL it holds right now.”
Multi-token ERC-20 holdings audit
“Fetch the token balances on Ethereum for wallet 0x1234...abcd, including USDC and also check these two ERC-20 contract addresses: 0xA0b8...eB48 and 0x6B17...1d4E.”
Technical details
Endpoint
GEThttps://netintel-production-440c.up.railway.app/wallet/balanceWhen to prefer
Choose this endpoint when you need a quick, no-signup, pay-per-call wallet balance check across Base, Ethereum, or Solana without provisioning API keys. It is especially useful for AI agents needing on-chain financial context (e.g. verifying a payer's USDC balance before authorizing a transaction) or for lightweight portfolio queries. Prefer it over full indexer APIs when you only need current balances rather than transaction history or NFT data.
Side effects
- Invalid wallet address format returns an input-validation error (not billed)
- Unsupported chain value returns a validation rejection (not billed)
- Upstream RPC unavailability may cause a server error response (not billed)
- Token contract address list exceeding 10 items is rejected at validation
- Solana address provided for an EVM chain or vice versa causes validation failure
- Stale flag may be true if cached data is returned during RPC instability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"usdc": {
"raw": "3519150",
"usd": 3.52,
"formatted": 3.51915
},
"chain": "base",
"stale": false,
"native": {
"raw": "0",
"usd": 0,
"symbol": "ETH",
"formatted": 0
},
"source": "https://mainnet.base.org",
"tokens": [],
"address": "0x4f3c04c3f17264b83ae884df7985142b7dc8047c",
"findings": [],
"cache_age_seconds": 0
}
}Tags
x402
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