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Phantom API – Avalanche Token Balances
x402
Phantom API – Avalanche Token Balances is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Fetches ERC-20 and native token balances for a given wallet address on the Avalanche network, optionally filtered by contract addresses.
Price / call$0.01
Success—
StatusUnknown
How this service works
Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.
Output
Returns a list of token balances for the specified Avalanche wallet, including token contract addresses, token symbols, decimals, and balance amounts. If contract addresses are provided, results are filtered to only those tokens.
Example use cases
DeFi portfolio audit on Avalanche
“What tokens does the Avalanche wallet 0x742d35Cc6634C0532925a3b8D4C9b5e9F1A2b3c4 currently hold? I want to see all token balances across every contract it interacts with.”
Specific token holding check
“Check if the Avalanche address 0xAbC123...def456 has any balance in the WAVAX token at contract 0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7.”
On-chain due diligence for a counterparty
“Before I transfer funds, can you verify what tokens and how much the Avalanche wallet 0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2 is holding so I can assess their on-chain activity?”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/avalanche/token/balancesWhen to prefer
Choose this endpoint when you need fast, pay-per-call token balance lookups specifically on the Avalanche network without managing your own RPC nodes or indexer infrastructure. It is ideal for agents that need real-time wallet portfolio data on AVAX without a subscription or API key commitment, paying only $0.01 USDC per call via x402.
Side effects
- Invalid wallet address format returns a validation error
- Unknown or unindexed contract addresses may return zero balances or be omitted
- Rate limiting or payment failure via x402 results in a 402 Payment Required response
- Network downtime on Avalanche indexing may return stale or unavailable data
- Malformed request body (missing owner field) results in a 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| owner | string | |
| contractAddresses | array |
Tags
x402
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