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Check the exact ERC20 allowance an owner has granted to a spender contract, flag...

https://api.x402node.dev/chain/token-approvals

Overview

Check the exact ERC20 allowance an owner has granted to a spender contract, flagging unlimited approvals for revocation, on EVM chains. token allowance, approval check, unlimited approval, revoke allowance, spender allowance, wallet security

Protocol x402
Price $0.0050
Payment Asset USD Coin
Payment Network Base
Category crypto/wallet
Provider x402node
Source bazaar
Indexed 2026-06-12 06:12:26

Health

Status healthy
Latency (p50) 440ms
Uptime (30d) 100.0%
Reliability Score 87/100
Last Checked 2026-06-12 20:43:01
Last Healthy 2026-06-12 20:43:01
Consecutive Failures 0

x402 Payment Validation

Payment Requirements Valid
Asset Verified
Facilitator

Input Schema

{ "discoverable": true, "method": "GET", "queryParams": { "address": "EVM/chain address (optional)", "chain": "ethereum, base (default), arbitrum, optimism, polygon", "owner": "Token owner address (required)", "spender": "Spender contract address (required)", "token": "ERC20 contract address (required)" }, "type": "http" }

Recent Health Checks

Time Status HTTP Latency Error
2026-06-12 20:43:01 healthy 402 440ms
2026-06-12 17:11:28 healthy 402 880ms
2026-06-12 14:51:23 healthy 402 429ms
2026-06-12 10:27:09 healthy 402 419ms