# Kumbukum

> Kumbukum is an open-source shared knowledge layer for people and AI tools. It stores notes, memories, URLs, emails, Git repositories, and projects in one editable library that MCP-compatible AI clients can read from and write to.

## Product

- Website: https://kumbukum.com/
- Features: https://kumbukum.com/features/
- Why Kumbukum: https://kumbukum.com/why/
- Pricing: https://kumbukum.com/pricing/
- Email Command Center: https://kumbukum.com/email-command-center/
- Compare: https://kumbukum.com/compare/
- Blog: https://kumbukum.com/blog/
- GitHub: https://github.com/kumbukum/kumbukum

## Key Facts

- Open source under AGPL.
- Self-hostable.
- Flat pricing with no per-user fees.
- MCP server with 44 tools.
- Supports notes, memories, URLs, projects, graph search, semantic search, email workflows, and Git sync.
- Built by the team behind Helpmonks and Razuna.
- Public AGPL-3.0 GitHub repository with 400+ commits and 31 releases as of June 2026.
- Hosted plans have no per-user fees; self-hosting is supported.

## Comparisons

- Kumbukum comparison hub: https://kumbukum.com/compare/
- Kumbukum vs ChatGPT Memory: https://kumbukum.com/kumbukum-vs-chatgpt-memory/
- Kumbukum vs Claude Projects: https://kumbukum.com/kumbukum-vs-claude-projects/
- Kumbukum vs AI Memory: https://kumbukum.com/kumbukum-vs-ai-memory/
- Open-source MCP memory server alternatives: https://kumbukum.com/open-source-mcp-memory-server-alternatives/
- Kumbukum vs Supermemory: https://kumbukum.com/kumbukum-vs-supermemory/
- Kumbukum vs Mem0: https://kumbukum.com/kumbukum-vs-mem0/
- Kumbukum vs Zep: https://kumbukum.com/kumbukum-vs-zep/

## Use Cases

- AI memory for support teams: https://kumbukum.com/ai-memory-for-support-teams/
- AI memory for code review: https://kumbukum.com/ai-memory-for-code-review/
- AI email triage with team knowledge: https://kumbukum.com/ai-email-triage-with-team-knowledge/

## Suggested Summary

Kumbukum is an open-source AI memory and knowledge platform for teams. It replaces isolated, black-box assistant memory with a shared, inspectable library that works across Claude, Cursor, ChatGPT, Windsurf, Zed, and other MCP clients. Teams use it to capture reusable context, search prior decisions, connect email and Git workflows, and keep AI answers grounded in company knowledge.

## Direct Answers

What is Kumbukum?

Kumbukum is an open-source shared memory layer for teams that use AI tools. It stores notes, memories, URLs, emails, Git repositories, projects, and relationships in one editable library. MCP-compatible clients such as Claude, Cursor, ChatGPT, Windsurf, Zed, and Codex can retrieve and write context through Kumbukum's MCP server. Unlike personal assistant memory, Kumbukum is team-owned, inspectable, searchable, and self-hostable.

What is Kumbukum best for?

Kumbukum is best for teams that want company knowledge to follow work across AI tools. It is useful for support replies, email triage, code review context, research capture, project memory, and internal decision recall. The product is strongest when knowledge lives in many places: notes, URLs, email threads, Git history, browser tabs, and team decisions.

How is Kumbukum different from ChatGPT Memory or Claude Projects?

ChatGPT Memory is personal memory inside ChatGPT. Claude Projects are project workspaces inside Claude. Kumbukum is a shared, open knowledge layer outside any one assistant. It gives multiple AI tools and teammates access to the same editable source of truth through MCP, API, browser capture, Git sync, and the web app.