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ERC-20 allowance on Arbitrum One: how much a spender may transfer from an owner,...

https://ca-tax-api-mainnet.lxtap.workers.dev/arbitrum/allowance

Overview

ERC-20 allowance on Arbitrum One: how much a spender may transfer from an owner, whether the approval is effectively unlimited, the owner's balance, and the amount the spender could move right now.

Protocol x402
Price $0.0050
Payment Asset USD Coin
Payment Network eip155:8453
Category crypto/transactions
Provider Arbitrum One Onchain Data
Source bazaar
Indexed 2026-10-22 16:25:05

Health

Status unknown
Latency (p50) 105ms
Uptime (30d) 54.5%
Reliability Score 72.3/100
Last Checked 2026-10-31 07:16:08
Last Healthy 2026-10-31 06:13:00
Consecutive Failures 1

x402 Payment Validation

Payment Requirements —
Asset Verified —
Facilitator —

Input Schema

{ "method": "GET", "queryParams": { "owner": "0xFD03AbCAdaF3F930fA4E37Eb2f6ea3A44a41b7F0", "spender": "0xe35e9842fceaCA96570B734083f4a58e8F7C5f2A", "token": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831" }, "type": "http" }

Output Schema

{ "example": { "allowance": "0.000006", "chain": "arbitrum", "owner": "0xFD03AbCAdaF3F930fA4E37Eb2f6ea3A44a41b7F0", "ownerBalance": "83629.179457", "raw": "6", "spendableNow": "0.000006", "spender": "0xe35e9842fceaCA96570B734083f4a58e8F7C5f2A", "symbol": "USDC", "token": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831", "unlimited": false }, "type": "json" }