Wikimemory

Wikimemory is a personal, remotely hosted memory service for Claude, Codex, and other MCP clients. It preserves research, project state, technical decisions, and reusable context in an auditable revision store that the owner can browse and search from the web.

It includes remote HTTP MCP with OAuth/PKCE, passkey identity, append-only revision storage, full-text search, a React browse/search/history UI, multi-passkey controls, sanitized exports, and version-matched client skills. The server does not call an LLM; Claude or Codex performs synthesis while Wikimemory provides deterministic, auditable storage and retrieval.

What you can use it for

• Maintain a to-do list and let an assistant help prioritize, update, and archive it.

• Track personal or work projects with status, decisions, open questions, and next actions.

• Collect sources and build a durable research notebook with summaries and provenance.

• Keep an automated journal or work log containing the entries you choose to save.

• Maintain notes about people, conversations, commitments, and important context.

• Preserve meeting notes and decision history so later sessions know why a choice was made.

• Build a personal assistant that combines connected email or calendar tools with selected long-term memory.

• Keep learning notes, reading lists, household context, or a troubleshooting and incident notebook.

Wikimemory does not read email, calendars, or other services on its own. A connected assistant uses those tools and saves only the information you ask it to remember. Because these uses can involve sensitive personal data, review the security model before deciding what to store.

Related MCP server: mem-universe

Quick start

Requirements: Node.js 22+, npm, a Cloudflare account, and a passkey-capable browser or password manager. No Google Cloud project or OAuth application is required.

npx wrangler login
npx wikimemory install

The installer previews the exact Cloudflare account, Worker, D1 database (Cloudflare's managed SQLite), and OAuth/session store before creating anything. Open its one-time URL to register the owner passkey. The installer also prints the exact /mcp URL to paste into clients that require manual connector setup. Then connect a command-line client and install its memory skills:

npx wikimemory connect codex
npx wikimemory skills install codex

# or
npx wikimemory connect claude
npx wikimemory skills install claude

To use Wikimemory on a phone, first add the HTTPS /mcp URL printed by the installer or by npx wikimemory status:

Use the complete URL, including /mcp. The deployment root opens the Wikimemory web application and is not an MCP endpoint.

• Claude: add it as a custom connector in Claude's web settings. It then appears in Claude mobile.

• ChatGPT: enable developer mode on ChatGPT web, create an app using the /mcp URL under Settings → Plugins, and finish passkey authorization. The app then appears in ChatGPT mobile.

See the complete installation guide for detailed connection steps, recovery, passkey management, upgrades, and safe uninstall.

Run locally

npx wikimemory dev

This starts the Worker, React app, D1, and KV through local Wrangler emulation. State persists under ./.wikimemory/dev; production passkey identity is replaced with a clearly marked fake local owner while OAuth, PKCE, scopes, tokens, and MCP transport remain real.

Lifecycle commands

npx wikimemory status
npx wikimemory browse
npx wikimemory upgrade
npx wikimemory recover
npx wikimemory passkeys list
npx wikimemory uninstall       # preview only

Parallel installations use --deployment NAME. Non-secret lifecycle state lives under ~/.config/wikimemory/deployments/NAME/. Uninstall requires an explicit apply step and exact Worker-name confirmation because deleting D1 permanently destroys the stored memory.

Back up and restore

Authorize the administrative CLI once, then create a portable archive:

npx wikimemory api login
npx wikimemory backup create --output wikimemory-backup.wmem.zip
npx wikimemory backup verify wikimemory-backup.wmem.zip
npx wikimemory restore wikimemory-backup.wmem.zip

The ZIP contains human-readable Markdown, complete revision history, metadata, links, a versioned manifest, and SHA-256 checksums. It excludes passkeys, OAuth credentials, and sessions. Restore preserves document and revision identities and stops on conflicts. When restoring into a new instance that still has starter documents, use wikimemory restore FILE --replace; Wikimemory requires exact Worker-name confirmation before deleting them.

Source-specific importers are intentionally not built in. An LLM or developer can use the documented admin CRUD API and exported wikimemory/client TypeScript client to convert another format while retaining its history. See the archive format and CRUD API.

How it works

Claude / Codex ---- Streamable HTTP MCP ----+
                                             |
Browser ------------ HTTPS web app ---------+--> Cloudflare Worker --> D1
                                             |
Passkey ------------ owner authentication --+

Cloudflare is the recommended host because Workers, D1, and KV all have free tier allowances large enough for typical personal use; the paid Workers plan starts at $5/month if those limits are exceeded. Memory is protected by access control and Cloudflare-managed encryption, but it is not end-to-end encrypted from Cloudflare. Do not store credentials or material you are unwilling to entrust to the host.

Design documents

• Product specification

• Architecture

• Security and threat model

• Data model

• MCP contract

• Local development and testing

• Installation and client connection

• Export formats and privacy

• Portable ZIP archive

• CRUD API and custom importers

• OpenAPI contract

• Pasteable agent instructions

• Implementation history

• Independent design review and dispositions

Current scope

Wikimemory supports one owner and one workspace, authenticated with passkeys. It includes a React web application with owner administration, remote MCP, local emulation, portable backup and restore, an administrative CRUD API, agent skills, and guided installation and client setup.

Multi-tenant SaaS, vector search, attachments, built-in chat, offline operation, manual document editing, scheduled backups, monitoring infrastructure, custom domains, and permanent staging infrastructure are outside the current scope.

License

MIT