Penfield Memory MCP Server

Persistent memory for AI agents. Store decisions, preferences, and context that survive across sessions. Build knowledge graphs that compound over time. Works with Claude, Cursor, Windsurf, Gemini CLI, and any MCP-compatible tool. It is available as a remote MCP endpoint.

Teams that want a hosted memory endpoint instead of running a local process. The project is written in Dockerfile.

VERIFIED ACTIVE

LAST COMMIT 2026-04-04 · ★ 6 · #255 OF 259 MAINTAINED MEMORY · VERIFIED 2026-08-25

AGPL-3.0 · Dockerfile · how we verify → /methodology

01 · Install Penfield Memory

Claude Code

claude mcp add penfieldlabs-penfield-mcp --transport http https://mcp.penfield.app/

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "penfieldlabs-penfield-mcp": {
      "url": "https://mcp.penfield.app/"
    }
  }
}

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

https://mcp.penfield.app/

transport: streamable-http

endpoint alive - authentication required · probed 2026-08-25

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 remote - your agent's requests go to mcp.penfield.app

endpoint auth requires authentication - rejected our unauthenticated MCP initialize

license AGPL-3.0 - declared in the repository

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

03 · What Penfield Memory can do

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

Latest releases

v1.22.0 · 2026-02-11

04 · Who maintains Penfield Memory

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

05 · Facts

repository: github.com/penfieldlabs/penfield-mcp
website: https://penfield.app/
category: memory - ranked #255 of 259 actively-maintained memory servers as of 2026-08-25.
registry: io.github.penfieldlabs/penfield-mcp (active, first published 2026-02-02)

06 · Penfield Memory FAQ

What is Penfield Memory?

Is Penfield Memory still maintained?

Yes - as of 2026-08-25, its last commit was 2026-04-04. We re-verify nightly.

How do I install Penfield Memory?

Run `claude mcp add penfieldlabs-penfield-mcp --transport http https://mcp.penfield.app/`. You can also paste the ready-made client config above.

Does Penfield Memory require authentication?

Yes - when we probed the endpoint on 2026-08-25, it rejected an unauthenticated MCP initialize; you'll need credentials to connect.

07 · Alternatives to Penfield Memory

Alternatives to Penfield Memory

Maintained memory servers if Penfield Memory isn't the fit.

Pairs well with

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

More memory MCP servers · Perseus: MCP server and live context engine · Palinode · Anneal Memory · Bolor Brain MCP · Kernal MCP