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DevRag - Lightweight Local RAG MCP Server

@tomohiro-owada

リポジトリ

基本情報

カテゴリ

メモリとナレッジ

トランスポート

stdio

作者

tomohiro-owada

投稿者

Owada Tomohiro

DevRag - Lightweight Local RAG MCP Server について

Lightweight local RAG MCP server for semantic vector

#devrag#local-server#semantic-search

DevRag - Lightweight Local RAG MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "devrag": {
      "type": "stdio",
      "command": "/usr/local/bin/devrag"
    }
  }
}

DevRag - Lightweight Local RAG MCP Server のツール

ツール一覧はまだありません

この掲載には表示できるツール一覧がまだありません。サーバーにツールがないという意味ではありません。対応機能はプロジェクトのドキュメントをご確認ください。

ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is DevRag - Lightweight Local RAG MCP Server?

DevRag is a lightweight, local-only MCP server that provides Retrieval-Augmented Generation (RAG) capabilities to MCP hosts (e.g., Claude Desktop). It performs semantic vector search over indexed markdown files, dramatically reducing token usage and search latency—all without any API dependencies or costs.

How to use DevRag - Lightweight Local RAG MCP Server?

DevRag is distributed as a single binary with no dependencies. To use it, launch the binary and configure your MCP host to point to it. Once running, the server exposes tools such as search, index_markdown, list_documents, delete_document, and reindex_document for managing and querying your local knowledge base.

Key features of DevRag - Lightweight Local RAG MCP Server

  • 40x token reduction via semantic vector search
  • 15x faster responses (~95ms search latency)
  • Runs entirely locally – no API costs
  • Multi-language support – Japanese and English
  • Filtered search by directory and filename patterns
  • Single binary with no external dependencies

Use cases of DevRag - Lightweight Local RAG MCP Server

  • Augmenting an AI assistant with a local markdown knowledge base
  • Indexing personal documentation or project wikis for fast retrieval
  • Reducing token usage in RAG pipelines when using paid LLM APIs
  • Multi-language RAG for teams working in Japanese and English

よくある質問

1

Is DevRag truly local and free?

Yes. It runs entirely on your machine, with no API calls or external services, so there are no usage costs.

2

What are the runtime requirements?

DevRag ships as a single binary with no dependencies—just download and execute.

3

Which languages does it support?

Indexing and search are available in both Japanese and English.

4

How do I add my documents?

Use the `index_markdown` tool to add a markdown file to the index, and `list_documents` to review indexed content.

5

What transport does it use?

The server follows the Model Context Protocol, which typically uses STDIO transport for host–server communication.

6

Are there any limits on document size or number?

The README does not specify explicit limits; performance and index capacity depend on the local environment.

コメント

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