0xRadar
0xRadar is a multi-chain wallet intelligence API built for developers who need real-time token balances, portfolio tracking, and sweep cost analysis across 7 EVM chains.What it does
- Single-chain balances: Query every ERC-20 holding for any address on Ethereum, Arbitrum, Base, Optimism, Polygon, BSC, or HyperEVM.
- Multi-chain portfolio: Aggregate balances across chains in one call with USD denomination.
- Sweep quotes: Estimate gas costs to consolidate dust tokens from multiple chains into one.
Who it’s for
- Wallet app builders building portfolio screens
- Security tool developers monitoring treasury or hot wallets
- DeFi integrators needing pre-transaction balance checks
- Python/JS developers who want typed, fast HTTP APIs without running their own nodes
Supported chains
Base URL
v1 is the current stable release.
Next steps
Quickstart
Make your first API call in 5 minutes
Authentication
Get an API key and understand tiers