Tools
Tools lists small utilities that sit outside the main Tasks and Wallets flows. Open it from the sidebar, pick a card, then use the back control in the tool header when you want to return to the grid.

OpenSea whitelist checker
This screen checks whether selected wallets are eligible for a given OpenSea collection stage. Run it before you commit a large Tasks batch if you need a quick sanity check on allowlist coverage.
Open Tools and choose OpenSea whitelist checker.
Open the Wallets selector.
Expand wallet groups in the flyout.
Select an entire group or tick individual wallets.
Enter the collection slug or URL (for example
bored-ape-yacht-clubor a full OpenSea collection link).Click Check.
Watch the progress message while the checker runs.
Review the summary counts and each wallet row.
The checker needs the current Desktop session's master password so it can decrypt selected wallets for the eligibility check. If the app cannot access it, log in again and rerun the check.

OpenSea checker results
The top bar shows the current state:
No results before you run a check.
Checking... when the run starts.
Checking X/Y... while wallets are being processed.
Done. X eligible. after a successful run.
Cancelled if the run is stopped.
Failed if the checker cannot finish.
The results table uses these columns:
Wallet
Wallet alias or address.
Status
Whether that wallet is eligible.
Details
Stage or eligibility information returned by the checker.
Error
Wallet-specific problem, if one occurred.
Gas calculator
The calculator estimates how much a transaction could cost from the numbers you type. It updates as soon as you change a field; there is no separate calculate button.
Enter gas limit in units (for example
140000).Enter value in ETH for the mint or call price (use
0for simple transfers with no ETH attached).Enter max fee and priority fee in Gwei.
When the inputs are valid, the Estimated costs section shows gas cost and total cost (gas plus value). If max fee and priority fee differ the UI may show a min and max range instead of a single number.
Invalid combinations show a red warning banner with a short explanation, for example when priority fee is higher than max fee.

Tips
Pair the gas calculator numbers with a healthy RPC so your Tasks presets match real network conditions.
Eligibility checks still require that wallets and slugs are correct. A “not eligible” result is only as good as the data OpenSea exposes for that collection.
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