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Strale Wallet Balance Lookup
x402
Strale Wallet Balance Lookup is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0216/call, status unknown (last checked 2026-09-15).
Looks up the native token balance of an Ethereum (or EVM-compatible) wallet address by chain ID
Price / call$0.0216
Success—
StatusUnknown
How this service works
The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.
Output
Returns the native token balance for the specified wallet address on the given EVM chain, along with a cryptographic audit record with chain hashing for provenance verification.
Example use cases
Pre-transaction fund verification
“Before I send that payment, can you check whether wallet 0xAbC123...def456 has enough ETH on Ethereum mainnet to cover it?”
Portfolio balance snapshot
“Check the native token balance for my wallet 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on Ethereum — I want to know how much ETH I currently hold.”
Multi-chain balance audit
“Look up the native balance of wallet 0x1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b on chain 137 — I need to confirm there's MATIC in there before proceeding.”
Technical details
Endpoint
GEThttps://api.strale.io/x402/v2/wallet-balance-lookupWhen to prefer
Prefer this endpoint when you need a tamper-evident, auditable record of a wallet's native token balance — especially in compliance, trust, or agent-to-agent contexts where cryptographic proof of the lookup matters. It is particularly useful when you need balance data for EVM chains beyond Ethereum mainnet and want a unified REST/MCP/x402-compatible interface rather than querying an RPC node directly.
Side effects
- Invalid or malformed wallet address (non-0x format) returns an error
- Unsupported chain_id results in an error or empty response
- Address with zero balance may return 0 rather than an error
- Network timeouts or RPC unavailability on the requested chain
- Rate limiting or payment failure if USDC micropayment is not settled
Tags
x402
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