Codequiry

Codequiry helps instructors and teaching teams review programming submissions for similarities to classmates’ work, public code, and potentially AI-written code. It checks submissions against sources including GitHub, Stack Overflow, and the web, then presents matched lines side by side with plagiarism and AI scores. The service supports more than 65 programming languages and compares code structure to find similarities even when variables are renamed or functions are reordered. Its AI detection report provides a probability and signals for closer inspection; a score alone is not proof of cheating. For teams that want to incorporate checks into their own workflows, the REST API supports uploading code, starting peer, web, database, and AI checks, and retrieving results as JSON. Official SDKs are available for Node.js, PHP, Python, Java, and Go. An MCP integration also supports scans from compatible AI assistants. Codequiry offers free unlimited peer similarity checks. Paid plans add web matching and AI detection, with the Grow plan intended for individual instructors and small teaching teams.