Devrag MCP Server
Free Local RAG for Claude Code - Save Tokens & Time 日本語版はこちら | Japanese Version
People who need documentation tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in Go.
VERIFIED ACTIVE
LAST COMMIT 2026-04-15 · ★ 63 · #177 OF 183 MAINTAINED DOCUMENTATION · VERIFIED 2026-08-25
Go servers · how we verify → /methodology
01 · Evidence
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
license no standard license detected - usage rights unclear; check the repo before commercial use
registry namespace io.github.tomohiro-owada is GitHub-verified and matches the repo owner
02 · What Devrag can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
Latest releases
v1.4.4 · 2026-04-15
Fix search crash with zero-vector chunks (#22): vec_distance_cosine() returns NULL for zero vectors (stored as a fallback when chunk embedding fails). The scanner now handles NULL distances gracefully and skips those…
v1.4.3 · 2026-04-04
v1.4.2 · 2026-03-27
SanitizeForTokenizer space counting with problematic Unicode runes (#18) · SanitizeForTokenizer() replaced Box Drawing characters (U+2500–U+257F etc.) with spaces but reset the consecutive-space counter, allowing long…
03 · Who maintains Devrag
devrag is maintained by tomohiro-owada. It's the only MCP server we track from this author; the repo dates to Oct 2025.
04 · Facts
- repository
- github.com/tomohiro-owada/devrag
- category
- documentation - ranked #177 of 183 actively-maintained documentation servers as of 2026-08-25.
- registry
- io.github.tomohiro-owada/devrag (active, first published 2025-12-15)
05 · Devrag FAQ
What is Devrag?
Free Local RAG for Claude Code - Save Tokens & Time 日本語版はこちら | Japanese Version
Is Devrag still maintained?
Yes - as of 2026-08-25, its last commit was 2026-04-15. We re-verify nightly.
06 · Alternatives to Devrag
Alternatives to Devrag
Maintained documentation servers if Devrag isn't the fit.
- Context7 Up-to-date code docs for any prompt ★ 61,171 · 2026-08-24
- Agent Skills Search Server Search and discover Agent Skills from the skills.sh registry. Powered by HAPI MCP server. ★ 24,633 · 2026-08-09
- Repowise Codebase intelligence for AI coding agents - graph, git history, docs, decisions, code health. ★ 6,189 · 2026-08-24
- GitLab MCP GitLab MCP server for projects, merge requests, issues, pipelines, wiki, releases, and more. ★ 1,918 · 2026-08-24
- Microsoft Learn MCP Official Microsoft Learn MCP Server – real-time, trusted docs & code samples for AI and LLMs. ★ 1,853 · 2026-08-12
- Pg Aiguide Comprehensive PostgreSQL documentation and best practices, including ecosystem tools ★ 1,821 · 2026-06-26
Pairs well with
Servers that cover what Devrag doesn't - only shown when the pairing reason fits the companion.
More documentation MCP servers · Trip2g · Pindoc · Vercel MCP · Inkwell
More Go MCP servers · Helmdeck · Tripsy · Trino · Figma MCP Go · see all