Myco Brain MCP Server

Persistent, source-traceable memory for AI agents - self-hosted on your own Postgres, with no API keys required to run. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-06-25 · ★ 7 · #155 OF 259 MAINTAINED MEMORY · VERIFIED 2026-08-25

Apache-2.0 · TypeScript servers · how we verify → /methodology

01 · Install Myco Brain

before you install - you'll need

Set DATABASE_URL, BRAIN_WORKSPACE_ID, BRAIN_API_KEY, OPENAI_API_KEY before connecting.

Claude Code

claude mcp add thegoodguysla-myco-brain -- npx -y @mycobrain/mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "thegoodguysla-myco-brain": {
      "command": "npx",
      "args": [
        "-y",
        "@mycobrain/mcp-server"
      ]
    }
  }
}

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 Apache-2.0 - declared in the repository

npm package @mycobrain/mcp-server - the @mycobrain scope differs from the repo owner (thegoodguysla); confirm it's the project's official package

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

03 · What Myco Brain can do

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

Latest releases

v1.2.9 · 2026-06-25

[1.2.9] - 2026-06-24 · A first-run and surfacing release: connecting Myco is now a guided, self-healing · walkthrough, every memory remembers which tool wrote it, and an agent can ask the · brain how it is doing and…

v1.2.8 · 2026-06-18

[1.2.8] - 2026-06-18 · Version alignment only - no functional changes. The npm package was bumped to · 1.2.8 during publishing (the compiled output is identical to 1.2.6); this entry · brings the documented history in…

v1.2.6 · 2026-06-17

[1.2.6] - 2026-06-17 · An agent-experience release: the agent contract now teaches Myco as the · adjudication engine it is, and the doctor verifies your setup for real instead of · trusting config. No tool-contract…

04 · Who maintains Myco Brain

myco-brain is maintained by thegoodguysla. It's the only MCP server we track from this author; the repo dates to Jun 2026.

05 · Facts

repository: github.com/thegoodguysla/myco-brain
category: memory - ranked #155 of 259 actively-maintained memory servers as of 2026-08-25.
release cadence: 6 releases in the last 90 days (latest 2026-06-25)
registry: io.github.thegoodguysla/myco-brain (active, first published 2026-06-18 · 2 versions)
packages: npm:@mycobrain/mcp-server

06 · Myco Brain FAQ

What is Myco Brain?

Persistent, source-traceable memory for AI agents - self-hosted on your own Postgres, with no API keys required to run. It runs locally over stdio via the published package.

Is Myco Brain still maintained?

Yes - as of 2026-08-25, its last commit was 2026-06-25 and it shipped 6 releases in the last 90 days. We re-verify nightly.

How do I install Myco Brain?

Run `npx -y @mycobrain/mcp-server`. The README documents 4 environment variables (DATABASE_URL, BRAIN_WORKSPACE_ID, BRAIN_API_KEY…) to set first. Set DATABASE_URL, BRAIN_WORKSPACE_ID, BRAIN_API_KEY, OPENAI_API_KEY before connecting. You can also paste the ready-made client config above.

Does Myco Brain 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 Myco Brain

Alternatives to Myco Brain

Maintained memory servers if Myco Brain isn't the fit.

Pairs well with

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

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