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DeepSeek V4.1 Flash free for 7 days: 10M tokens a day after any top-up. Until Nov 30.

How it works

AI for source code security review

Follow untrusted input to a sensitive operation and get a small patch with a test.

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    Attach the files or a diff.

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    Ask where user input reaches a query, a file path or a template.

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    Get the patch and a test that fails before it and passes after.

Sample request

Trace the filename parameter from the upload route to the filesystem call.

notholy-specterYour files attached

Paste it into the chat with your own code, report or binary. The answer depends on what you attach.

Ask anything your scope allows.

Create an account, add credits from $10 and ask the first question in the chat or the terminal.

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    Create the account

    Individual or company. You can switch to a company later without losing balance or keys.

    IndividualCompany
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    Add credits

    By card, from $10. Pay per token, no subscription.

    $10.00minimum deposit
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    Ask

    In the chat, or install the CLI and run notholy login in your terminal.

    $ notholy login