Melchizedek MCP Server

Persistent memory for Claude Code. Automatically indexes every conversation and provides production-grade hybrid search (BM25 + vectors + reranker) via MCP tools. 100% local, zero config, zero API keys, zero invoice.

People connecting memory tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-06-21 · ★ 7 · #161 OF 259 MAINTAINED MEMORY · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Melchizedek

before you install - you'll need

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

Claude Code

claude mcp add louis49-melchizedek -- npx -y melchizedek

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "louis49-melchizedek": {
      "command": "npx",
      "args": [
        "-y",
        "melchizedek"
      ]
    }
  }
}

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

license MIT - declared in the repository

npm package melchizedek - unscoped; check the name against the project README before installing

registry namespace io.github.louis49 is GitHub-verified and matches the repo owner

03 · What Melchizedek can do

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

Limitations (from the README)

- Session boost inactive - Claude Code currently sends an empty session_id in the SessionStart hook stdin payload, preventing the ×1.2 session boost from working. The ×1.5 project boost is unaffected and provides the primary context-aware ranking. Related upstream issues: 13668 (empty transcript_path), 9188 (stale session_id). Melchizedek's session boost code is tested and ready, and will activate automatically when

Latest releases

v1.0.2 · 2026-03-03

What's new · m9k_info now shows the plugin version - easier to check which version is running · README slimmed down (561 → 237 lines) - heavy reference content extracted into focused docs: · - docs/installation.md…

v1.0.1 · 2026-03-01

### Fixed · - Add mcpName field required by MCP Registry publish

v1.0.0 · 2026-03-01

Added · - 16 MCP tools for persistent conversation memory in Claude Code · - Hybrid search pipeline: BM25 (FTS5) + dual vector embeddings (text + code) + Reciprocal Rank · Fusion + cross-encoder reranking · - 4-level…

04 · Who maintains Melchizedek

melchizedek is maintained by louis49. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/louis49/melchizedek
category: memory - ranked #161 of 259 actively-maintained memory servers as of 2026-08-25.
registry: io.github.louis49/melchizedek (active, first published 2026-03-01 · 2 versions)
packages: npm:melchizedek

06 · Melchizedek FAQ

What is Melchizedek?

Is Melchizedek still maintained?

Yes - as of 2026-08-25, its last commit was 2026-06-21. We re-verify nightly.

How do I install Melchizedek?

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

Does Melchizedek run locally?

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

07 · Alternatives to Melchizedek

Alternatives to Melchizedek

Maintained memory servers if Melchizedek isn't the fit.

Pairs well with

Servers that cover what Melchizedek doesn't - only shown when the pairing reason fits the companion.

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