Deepsec

deepsec

[`deepsec`](https://deepsec.sh) is an agent-powered vulnerability scanner that you can run in your own infrastructure, optimized to perform on-demand review of all code in existing large-scale repos.

`deepsec` is designed to surface hard-to-find issues that have been lurking in applications for a long time. It is configured to use the best models at maximum thinking levels (tunable via `--thinking-level`, see [models](https://github.com/vercel-labs/deepsec/blob/main/docs/models.md)), meaning scans can cost thousands or even tens-of-thousands of dollars for large codebases. Our customers have found the cost worth it for how quickly they were able to patch vulnerabilities that would have otherwise gone unfixed.

For large codebases, work fans out across worker machines in parallel. If a run is interrupted or errors out partway through, just re-run the same command — deepsec picks up where it left off, skipping files it already analyzed and only investigating the rest.

Get started

From the root of the repository you want to scan:

npx deepsec init

The command guides you through everything. It asks you to pick an AI model (with benchmark scores and prices to compare) and how to pay for model usage — your own OpenAI/Anthropic API key, or Vercel AI Gateway — and then works unattended: it studies your codebase, scans it, and runs the AI review. The only thing it adds to your repository is a `.deepsec/` folder where all of its state and findings live.

If the run is interrupted for any reason — Ctrl-C, lost connection, a spending limit — run `npx deepsec init` again and it continues where it left off. To cap what a run may spend or how long it may take:

npx deepsec init --max-cost-usd 100 --max-duration 2h

When the scan finishes, get a readable report:

cd .deepsec
pnpm deepsec export --format md-dir --out ./findings

For later scans, work from inside `.deepsec/`:

pnpm deepsec scan        # fast pattern scan,