Alternatives
Products that do what App Trust Preview does
Understand Mac software before you open it
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I noticed the growing security concerns around MCP (https://news.ycombinator.com/item?id=43600192) and built an open source tool that can detect several patterns of tool poisoning attacks, exfiltration channels and cross-origin manipulations. MCP-Shield scans your installed servers (Cursor, Claude Desktop, etc.) and shows what each tool is trying to do at the instruction level, beyond just the API surface. It catches hidden instructions that try to read sensitive files, shadow other tools' behavior, or exfiltrate data. Example of what it detects: - Hidden instructions…
2025 · github.com
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Trusty - Search for an open source package to understand its trustworthiness based on activity, provenance, and more. Brought to you by the founders of projects such as Kubernetes and Sigstore. Hey, Luke here the CTO of stacklok. This is an early experimental preview of Trusty. We use statistical analysis to observe millions of packages and found that Malware typically follows certain patterns. We found this tool really useful to help understand the packages we our pulling into our software and wanted to share it with others. It's still early in and we have a lot more features that will be…
2023 · trustypkg.dev
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hey guys, wanted to show one of my side projects i just made public. the idea is basically another osint tool for pentesters and bug bounty hunters. it watches certificate transparency logs and checks newly-seen domains for exposed stuff like .env files, open .git dirs, config files, db dumps and so on, and puts whatever it finds into a searchable db. you just search a domain (or part of one) and see what's exposed. it's read-only and free. one thing i've been thinking about adding is a way to register for certain keywords and get notified when something new shows up for that search. would…
Jul 2026 · search.cerast-intelligence.com
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A curated list of free OSS developer-first security tools
2022
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