Penfield Memory MCP Server

by penfieldlabs Your server? Claim it

answering

Penfield Memory is answering right now. Last checked 13 min ago. Last commit 4 Apr 2026.

Persistent memory and knowledge graphs for AI agents. Hybrid search, context checkpoints, and more.

Uptime history 91 days of history · worst day 95%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

344 ms

Response time

average over 24h

Stars

last commit 4 Apr 2026

Penfield Memory missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://mcp.penfield.app/

~/.codex/config.toml

[mcp_servers.penfield-mcp]
url = "https://mcp.penfield.app/"

.cursor/mcp.json

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

.vscode/mcp.json

{
  "servers": {
    "penfield-mcp": {
      "type": "http",
      "url": "https://mcp.penfield.app/"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.penfield.app/	streamable-http	sign-in	307 ms	13 min ago

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Penfield Memory — questions

Answers built from our own checks of this server.

Why is there no tool list for Penfield Memory?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Penfield Memory working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 344 ms. The bar chart above shows every period we have measured.

How do I connect Penfield Memory?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Penfield Memory?

No API key is involved. Penfield Memory answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is Penfield Memory?

It answers our handshake in 344 ms on average, which is faster than 41% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Penfield Memory open source?

The code is open source: it is published under the AGPL-3.0 licence, written in Dockerfile and 6 stars on GitHub. The licence covers the code in the repository, not the hosted service at mcp.penfield.app, which runs on its operator's own terms.