Sema
Semantic codebase indexer for Claude Code and OpenAI Codex.
What is Sema?
Stop wasting tokens on file navigation. Speed up Claude Code and OpenAI Codex on large codebases. Sema is a semantic code indexer and MCP server. It indexes your entire codebase locally — every function, class, and method — and gives your AI assistant a search API so it never has to read files blindly again. Index once. Your AI searches forever.
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