Task

Allowance Base

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base-allowance x402 REST usage

ERC20 allowance on Base mainnet via RPC: how much a spender is approved to move from an owner balance, read with allowance(owner,spender) eth_call.

x402.agentindex.world Crypto & Payments 3 calls / 30d checked 2026-10-26

0.003 USDC per call per call

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