Wallet Approval Safety

Approval Allowance Checker

Read the token allowance granted by your connected EVM wallet, identify active or unlimited access, then revoke it or replace it with an exact amount.

Check approval risk Safer workflow

Read-only inspection Checking an allowance does not create an on-chain transaction.

Exact spender review Evaluate the contract that actually holds spending permission.

Exposure intelligence Compare active allowance against the wallet’s current token balance.

Safer remediation Revoke access or replace unlimited approval with an exact amount.

Confirm the exact spender

Paste the contract shown on your wallet approval screen, explorer event, router page, bridge, mint, or protocol docs.

See the active allowance

Read the ERC-20 allowance directly from chain for your connected wallet, token contract, and spender address.

Reduce future damage

Revoke old approvals or replace unlimited access with an amount that matches the action you actually want to perform.

Checking member access

Preparing the approval checker

Confirming your TokenToolHub account before wallet tools are enabled.

Targeted approval checksInspect one token and exact spender on the selected EVM network.

Safer wallet actionsRevoke old access or replace unlimited approval with an exact amount.

Local check historyKeep recent token and spender pairs available on this device.

Create free account Log in

Membership is free. TokenToolHub never asks for a seed phrase or private key.

Connected wallet Checking wallet availability… Use a wallet-enabled browser or installed EVM wallet. The tool reads the selected network only.

Network helper

Check the correct chain

The same token symbol can exist on different chains. Select the network where the approval was created before checking.

Targeted approval check

Paste token and spender

ConnectSelect the wallet and network holding the approval.

InspectCheck the token and exact spender allowance.

Reduce riskRevoke access or approve only the needed amount.

Token contract address The token whose spending permission you want to inspect. Spender address The contract allowed to spend this token from your wallet.

Amount to approve Approve unlimited amount Exact approval is safer. Unlimited approval should only be used when you understand and trust the spender.

Ready. Connect your wallet, then check the token and spender pair.

Safer workflow

Check first, then decide

Confirm the chain where the approval was created.
Paste the real token contract, not just the ticker symbol.
Paste the exact spender address shown in the wallet or explorer.
Revoke old approvals after swaps, bridges, mints, or claims.

Spender source

Where to find the spender

Approval popups, explorer approval events, transaction details, router contracts, bridge pages, mint contracts, and protocol docs can reveal the spender. Always match the chain and address before taking action.

Local history

Recent checks on this device

No recent checks yet.

Why do approvals stay active?

ERC-20 approvals are stored on-chain until you change them. Closing a dApp, disconnecting a wallet, or leaving a website does not automatically remove token spending permission.

Does checking allowance cost gas?

No. Checking allowance is a read-only call. Approving and revoking require wallet confirmation and a normal on-chain transaction.

Can this find every approval automatically?

This page is a targeted checker. It verifies one token and one spender precisely. Use it when you already know the spender from a wallet prompt, explorer, router, bridge, mint, or protocol.