
I Built a Browser Extension That Shows Trust Scores on npm, PyPI, and GitHub
I keep catching myself installing packages I know nothing about. Last month I added an LLM wrapper from npm that had 200 stars and no license file. Turns out it was abandoned, had three unpatched CVEs, and was pulling in a dependency with a known supply chain compromise. I only found out because a colleague happened to mention it. The AI tooling ecosystem is growing faster than anyone can audit. There are 5 million+ AI assets out there — agents, MCP servers, LangChain tools, Hugging Face models — and most developers evaluate them by star count and README quality. That is not a security strategy. So I built a browser extension that surfaces trust scores inline, right where you make decisions. How It Works The Nerq browser extension detects when you are viewing a package on npm, PyPI, or a GitHub repository. It sends only the package name to the nerq.ai API, retrieves its trust score, and renders a small badge overlay on the page. No browsing data, no telemetry, no tracking — just a name
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