lumen

by ory · Databases · ★ 312

lumen is an MCP server by ory. Save 30% token costs when using Claude Code, Codex, OpenCode for free - with open source, local semantic search. Works for small and large codebases and monorepos! Enterprise-ready and fully compliant via Ollama and SQLite-vec. It has 312 GitHub stars and ranks #73 of 630 in Databases by stars.

Category: Databases
Author: ory
GitHub stars: 312
This week: Tracking since 18 Oct 2026
Language: Go
License: Other
Last update: 2026-10-11 (13 days ago)
Links: Source Website

agentic-coding
claude
claude-ai
claude-code
claude-pl
codex
context
gemini
golang
gpt-5
mcp
mcp-server
+1 more

How to install lumen

Install steps differ per project, so follow the README in the lumen repository. Most MCP servers start with a single command (npx -y <package>, uvx <package> or a Docker image) that you add to your client's config. The install guide shows where that goes in Claude Code, Claude Desktop, Cursor and VS Code.

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Maintain this project? Get it featured ($99/mo, pinned at the top of Databases) or see what featuring includes.

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Frequently asked questions

What is lumen?

lumen is an MCP server by ory in the Databases category. Save 30% token costs when using Claude Code, Codex, OpenCode for free - with open source, local semantic search. Works for small and large codebases and monorepos! Enterprise-ready and fully compliant via Ollama and SQLite-vec. It has 312 GitHub stars and ranks #73 of 630 in Databases by stars.

Is lumen free and open source?

lumen lists its license as Other. Read the license text in the repository before using it in a commercial product, and check whether the service it connects to charges for API access.

What are the alternatives to lumen?

Other Databases projects on MCP Harbor include Chat2DB, dbx, mcp-toolbox. Each alternative links to its own page with stars, license and recent activity. The Databases category ranks all 630 by stars, and you can re-sort it by growth this week.

Alternatives to lumen

Chat2DB★ 28,331

OtterMind · Java+8 stars this week (+0%)

Chat2DB is a free, cross-platform, local-first database client and SQL workspace for developers, DBAs, analysts, and data teams. Connect to 40+ databases, manage data, edit and run SQL, and use your own AI model to generate, explain, and optimize queries. Available on desktop, web, Docker, and CLI,

dbxTrending★ 27,661

t8y2 · Rust+615 stars this week (+2.3%)

25 MB lightweight cross-platform database client for 100+ databases, including MySQL, PostgreSQL, SQLite, Redis, MongoDB, DuckDB, SQL Server, and Dameng. Built-in AI, MCP Server, CLI, desktop and Docker. | 轻量级跨平台数据库管理工具，支持 MySQL、PostgreSQL、SQLite、Redis、MongoDB、达梦等 100+ 数据库，提供桌面端、Docker、CLI、内置 AI 助手和

mcp-toolbox★ 16,717

googleapis · Go+44 stars this week (+0.3%)

MCP Toolbox for Databases is an open source MCP server for databases.

nightingale★ 13,383

ccfos · Go+17 stars this week (+0.1%)

Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.

electric★ 10,412

electric-sql · TypeScript

The agent platform built on sync.

mission-control★ 6,389

builderz-labs · TypeScript+28 stars this week (+0.4%)

Self-hosted control plane for AI agents: dispatch tasks, review runs, track spend, and operate OpenClaw, Claude Code, Codex, and other runtimes.

All 630 Databases MCP servers →

Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.