DevRag is a lightweight RAG (Retrieval-Augmented Generation) system designed specifically for developers using Claude Code. Stop wasting tokens by
DevRag is a lightweight RAG (Retrieval-Augmented Generation) system designed specifically for developers using Claude Code. Stop wasting tokens by reading entire documents - let vector search find exactly what you need. The devrag mcp server wraps that behind the Model Context Protocol, so an assistant can use it through 6 defined tools rather than through you.
Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
Everything the assistant can do here goes through one of these:
search — // Search only in docs/api directory search(query: "user endpoints", directory: "docs/api")index_markdown — The index_markdown tool exposed by this serverlist_documents — The list_documents tool exposed by this serverdelete_document — The delete_document tool exposed by this serverreindex_document — The reindex_document tool exposed by this serverBuild — The Build tool exposed by this serverYou will need 2 environment variables: HTTP_PROXY, HTTPS_PROXY. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
This sits in the file and storage access group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Devrag's toolset — search, index_markdown, list_documents and 3 more — is a fair guide to whether it matches your workflow. It is maintained by tomohiro-owada; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| search | // Search only in docs/api directory search(query: "user endpoints", directory: "docs/api") |
| index_markdown | The index_markdown tool exposed by this server. |
| list_documents | The list_documents tool exposed by this server. |
| delete_document | The delete_document tool exposed by this server. |
| reindex_document | The reindex_document tool exposed by this server. |
| Build | The Build tool exposed by this server. |
**Using a custom config file:**
```json
{
"mcpServers": {
"devrag": {
"type": "stdio",
"command": "/usr/local/bin/devrag",
"args": ["--config", "/path/to/custom-config.json"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| HTTP_PROXY | Configuration value read at startup. | Optional |
| HTTPS_PROXY | Configuration value read at startup. | Optional |
Scoped local file access — read, write, search and reorganise files in directories you explicitly allow.
Search and read your Drive — Docs, Sheets and files become context your assistant can actually use.
Query, modify and analyse local SQLite databases in conversation — the fastest way to chat with a data file.
Build a programmable telecommunications stack for connecting telephony services with the Internet via a cloud-based utility.
Chat with your second brain — search, read and write vault notes through the Local REST API.
Connects AI models to an Obsidian knowledge base for direct access and manipulation of notes and folders.