Loci MCP Server

A queryable "second brain" for the project docs, notes, and chat logs scattered across a dozen directories - and an MCP server so your AI agents can use it too. It runs locally over stdio via the published package.

People who work with chromadb, embeddings and knowledge base and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-18 · ★ 74 · #58 OF 208 MAINTAINED DOCUMENTATION · VERIFIED 2026-09-18

MIT · Python servers · how we verify → /methodology

01 · Install Loci

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add ivenkoolab-loci -- uvx loci-rag

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "ivenkoolab-loci": {
      "command": "uvx",
      "args": [
        "loci-rag"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · 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.

runs as local process (stdio) - runs on your machine with your user's permissions

repo age created 2026-09-03 - young repo, little track record yet

license MIT - declared in the repository

pypi package loci-rag - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.IvenKooLab is GitHub-verified and matches the repo owner

03 · What Loci can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.5.0 · 2026-09-16

v0.5.0 - the self-improving release · Query understanding, memory automation, and efficiency across the board. · Highlights · Query rewriting - loci ask --rewrite generates keyword and cross-language variants of your…

v0.2.0 · 2026-09-05

The "memory layer" release · loci turns scattered notes, project docs, and chat logs into a queryable second brain - local index, hybrid retrieval, cited answers, and an MCP server so your AI agents can use it. The…

04 · Who maintains Loci

loci is maintained by ivenkoolab. It's the only MCP server we track from this author; the repo dates to Sep 2026.

05 · Facts

category
documentation - ranked #58 of 208 actively-maintained documentation servers as of 2026-09-18.
release cadence
2 releases in the last 90 days (latest 2026-09-16)
registry
io.github.IvenKooLab/loci (active, first published 2026-09-15)
packages
pypi:loci-rag

06 · Loci FAQ

What is Loci?

A queryable "second brain" for the project docs, notes, and chat logs scattered across a dozen directories - and an MCP server so your AI agents can use it too. It runs locally over stdio via the published package.

Is Loci still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-18 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install Loci?

Run `uvx loci-rag`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Loci run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Loci