sem
Semantic layer on top of Git that diffs, blames and traces impact by function and class instead of by line, with an MCP server for coding agents.
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About sem
sem is listed in our coding category and is aimed at builders. Semantic layer on top of Git that diffs, blames and traces impact by function and class instead of by line, with an MCP server for coding agents. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-19.
sem at a glance
- Category: Coding
- Built for: Developers and teams building with AI agents
- Pricing: Open source (as the maker states it)
- GitHub: Ataraxy-Labs/sem · 3,415 stars (as of Oct 19, 2026)
- Official site: ataraxy-labs.github.io/sem
- Listed on AgentScout: Oct 19, 2026
sem FAQ
What is sem?
Semantic layer on top of Git that diffs, blames and traces impact by function and class instead of by line, with an MCP server for coding agents.
How much does sem cost?
sem's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Where can I find sem's source code?
On GitHub at Ataraxy-Labs/sem, which had 3,415 stars as of Oct 19, 2026.
What are alternatives to sem?
Similar tools include OpenHands, Claude Context, MobileBuildMCP, Next.js DevTools MCP, SocratiCode and Backlog.md.
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
sem ratings and reviews
sem alternatives
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Sentry's MCP server and CLI that gives coding agents build, test and run tools for iOS and macOS projects.
Next.js DevTools MCP
Vercel's MCP server that connects coding agents to running Next.js dev servers for live errors, routes, logs and docs.
SocratiCode
Codebase context engine for AI agents with hybrid semantic search, dependency graphs and impact analysis, available as MCP, plugin or skill.
Backlog.md
Markdown task board in your Git repo for coordinating work between people and AI agents.
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