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Mint Intel: ERC-20 Allowance on Ethereum
x402
Mint Intel: ERC-20 Allowance on Ethereum is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).
Returns the decimal-adjusted ERC-20 token allowance a spender address may move from an owner's Ethereum wallet, including an unlimited-approval flag and known-spender label.
Price / call$0.001
Success—
StatusUnknown
How this service works
ERC-20 allowance on Ethereum via allowance(owner, spender) (eth_call) - how much a spender such as Permit2 or a DEX router may move from an owner's wallet, decimal-adjusted, with unlimited-approval flag and known-spender label.
Output
Returns the token contract address, the raw allowance as a string, a boolean indicating whether the approval is effectively unlimited (max uint256), and a human-readable label for recognized spenders such as Permit2 or known DEX routers. The allowance value is decimal-adjusted for the token's precision.
Example use cases
Audit unlimited DeFi approvals
“Check if Uniswap's router (0xEf1c6E67703c7BD7107eed8303Fbe6EC2554BF6B) has unlimited approval to spend WETH (0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2) from my wallet 0xAbC1234567890abcdef1234567890abcdef123456 on Ethereum.”
Pre-trade allowance verification
“Before I swap, can you verify how much USDC (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) the 1inch router (0x1111111254EEB25477B68fb85Ed929f73A960582) is allowed to move from 0xDe0B295669a9FD93d5F28D9Ec85E40f4cb697BAe on Ethereum?”
Security scan for risky token approvals
“I want to check if the address 0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F has been given any allowance to spend DAI (0x6B175474E89094C44Da98b954EedeAC495271d0F) from wallet 0x1234567890abcdef1234567890abcdef12345678 on Ethereum — and whether it's flagged as an unlimited or suspicious approval.”
Technical details
Endpoint
GEThttps://mintintel.35-171-220-195.sslip.io/v1/eth/allowance/:token/:owner/:spender?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, decimal-adjusted ERC-20 allowance check on Ethereum mainnet with the added context of an unlimited-approval flag and known-spender identification. Prefer it over raw RPC calls when you want the human-readable enrichment (label, unlimited flag) without writing your own ABI decoding logic. It's ideal for DeFi security audits, pre-trade checks, and wallet approval dashboards.
Side effects
- Invalid or non-checksummed Ethereum address returns a 400 error
- Non-ERC-20 contract address (e.g. EOA or non-standard token) may return zero or an RPC error
- Network congestion or RPC node unavailability may cause timeouts
- Token contract that does not implement standard allowance() ABI will fail the eth_call
- Spender address not in known-spender registry returns null label rather than an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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