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Coin Railz Multi-Chain Wallet Balance
x402
Coin Railz Multi-Chain Wallet Balance is a paid API for AI agents from coinrailz.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-15).
Query native and token balances for a wallet address across 7+ EVM-compatible blockchain networks in a single API call
Price / call$0.5
Success—
StatusUnknown
How this service works
Query wallet balances across 7+ EVM chains in a single API call
Output
Returns native coin and optionally ERC-20 token balances for the specified wallet address, broken down by each queried EVM chain (e.g. Ethereum, Base, Polygon, Arbitrum, etc.), enabling a full multichain portfolio snapshot in one response.
Example use cases
Example prompt
“Can you check the wallet balance for 0xAbC123...def456 across all available EVM chains and include token balances too?”
Technical details
Endpoint
POSThttps://coinrailz.com/x402/service/multi-chain-balanceWhen to prefer
Use this endpoint when you need to aggregate wallet balances across multiple EVM chains in a single call rather than making separate per-chain RPC calls. Ideal for portfolio dashboards, pre-transaction fund checks, agent treasury management, or any flow requiring a multichain balance snapshot without running individual node queries per network.
Side effects
- Invalid or malformed wallet address returns a validation error
- Unsupported chain identifier in the chains array results in an error or that chain being skipped
- Network timeout or RPC node unavailability for a specific chain may return partial results
- Rate limiting or payment failure (x402) prevents the call from completing
- Empty wallet with no balances returns zero values rather than an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chains | array | Chains to check (optional) |
| includeTokens | boolean | Include token balances (optional) |
| walletAddressrequired | string | Wallet address to check |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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