Purmemo

Name: Purmemo
Author: purmemo-ai

@purmemo-aiMCP server · External

AI memory across Claude, ChatGPT, Gemini, and Cursor. Save, search, and recall context everywhere.

AI memoryv12.9.5TypeScript

Freeno charge per call

How to install

Runs on your machine from its package; the steps are below.

What it does

Reads
Writes
High impact

At most: creates or changes data: records, files, settings.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Runs locally over stdio

This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).

npmpurmemo-mcpv12.9.5

Run

npx -y purmemo-mcp

MCP client config

{
  "mcpServers": {
    "purmemo": {
      "command": "npx",
      "args": [
        "-y",
        "purmemo-mcp"
      ]
    }
  }
}

README4 min readView on GitHub

pūrmemo

Memory for your AI tools. Claude remembers who you are, what you're working on, and what you said last time — across every session, on every platform.

Just want it in ChatGPT or Claude.ai in your browser? Get the Chrome Extension instead.

Install in 30 seconds

1. Paste this into your terminal

Mac or Linux:

bash

curl -fsSL https://app.purmemo.ai/install | sh

Windows (PowerShell):

powershell

irm https://app.purmemo.ai/install.ps1 | iex

That's it for installing. The script handles everything — it'll install Node if you don't have it, set up the purmemo command, and tell you when it's done.

2. Type `purmemo`

bash

purmemo

Your browser opens. Sign in (or create a free account). Close the tab when it says you're done.

3. Restart Claude

Quit and reopen Claude Desktop (or Claude Code). pūrmemo is now connected.

You'll know it worked when your next Claude session opens with a header like:

pūrmemo v15.7.20 · you@example.com · Free · 0 memories

Try saying "save this" at the end of a conversation, or "what was I working on?" at the start of a new one.

If something goes wrong

purmemo command not found? Close and reopen your terminal, then try again. New commands sometimes need a fresh shell.

You see "Failed to read token" or "bad decrypt"? Run:

bash

purmemo --update && purmemo init

This clears any stale credentials and signs you back in. (Fixed in v15.7.20+ — if you're on an older version, this is a one-time thing.)

Anything else? Open an issue at github.com/purmemo-ai/purmemo-mcp/issues — we read every one.

What it does

Remembers everything — save any conversation, recall it later by typing what you remember about it.
Knows who you are — your role, your projects, your stack — loaded automatically into every new session.
Tells you what changed — ask what_changed about a person, project, or thing and get its dated history: what used to be true, what replaced it, and when.
Works everywhere — Claude Code, Claude Desktop, Cursor, Windsurf, Zed, anything that speaks MCP.

Three slash commands you'll use most:

You type	What happens
`/save`	Saves this conversation. Use the same title later → updates the same memory.
`/recall <topic>`	Search your memories in plain English.
`/context`	At the start of a session — loads who you are and what you were last working on.

Other ways to install

I already have Node.js

bash

npm install -g purmemo-mcp && purmemo

Or, run it once without installing globally:

bash

npx purmemo-mcp@latest init

Claude Desktop — hosted (recommended, no setup)

Open Claude Desktop → Settings → Developer → Edit Config and add:

json

{
  "mcpServers": {
    "purmemo": {
      "url": "https://mcp.purmemo.ai/mcp/messages",
      "transport": "streamable-http"
    }
  }
}

Restart Claude Desktop. You'll be prompted to sign in via OAuth on first use.

Claude Desktop — local (advanced)

Get your API key from app.purmemo.ai → Settings → API Keys, then edit:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

json

{
  "mcpServers": {
    "purmemo": {
      "command": "npx",
      "args": ["-y", "purmemo-mcp"],
      "env": { "PURMEMO_API_KEY": "your-api-key-here" }
    }
  }
}

Restart Claude Desktop after saving.

Cursor / Windsurf / Zed

Cursor — edit ~/.cursor/mcp.json:

json

{ "mcpServers": { "purmemo": { "command": "npx", "args": ["-y", "purmemo-mcp"], "env": { "PURMEMO_API_KEY": "your-api-key" } } } }

Windsurf — edit ~/.codeium/windsurf/mcp_config.json (same shape as above).

Zed — edit ~/.config/zed/settings.json, add under context_servers:

json

{ "context_servers": { "purmemo": { "command": { "path": "npx", "args": ["-y", "purmemo-mcp"], "env": { "PURMEMO_API_KEY": "your-api-key" } } } } }

Pricing

Plan	Price	Recalls	Saves
Free	$0	50/month	Unlimited
Pro	$19/month	Unlimited	Unlimited

For developers

Looking for the technical stuff? It's all here:

Tools, resources, prompts reference — every MCP tool the server exposes (save_conversation, recall_memories, commit, snapshot, run_workflow, etc.)
Living document semantics — mode='append' vs mode='replace', chunking behavior, ADR-036/038 details.
Identity layer — the cognitive fingerprint that loads into every session.
Architecture decisions (ADRs) — every design decision, with context and trade-offs.
Source for the install scripts — read before running, if you want.