Plurality Network alternatives

Tools that do what Plurality Network does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Plurality Network.

Read 2026-10-20

With a free plan or free to use: Hjarni, Craft Docs, MemoryRouter, Tana, Stashr.

10 alternativesUnlike Plurality Network

#1
Penny Security MCP · open
Stores your notes, preferences and projects encrypted and serves them to any MCP-compatible AI tool.
Also: SecurityOwn MCP server
5
#2
Hjarni Knowledge MCP · sign-in
Stores plans, decisions and preferences as markdown notes that ChatGPT and Claude can search and edit across chats.
Free planMore widely used
35
Active
From $12/mo
2026
#3
Poe AI assistants
Gives chat access to many language and image models from different providers in one app, plus user-built bots on top of them.
More widely used
168k
2009
#4
NoteGPT Knowledge
Summarizes lectures, videos, and documents; generates notes, slides, and audio content for learning and research.
Also: Summarization, WritingMore widely used
1.3M
Active
From $9.99/mo
#5
Craft Docs Knowledge
Writes and organizes notes and documents built from nestable blocks, with daily notes, tasks, offline apps and pages that can be shared on the web.
Free planMore widely used
89.1k
Active
From $8/mo
#6
MemoryRouter Productivity MCP · open
Stores your preferences and project context and passes it between ChatGPT, Claude and other AI tools via an MCP connector.
Free planOwn MCP server
14
Active
From $20/mo
2026
#7
Mem Knowledge MCP · sign-in
Stores notes, links related notes automatically and answers questions over your saved notes through a built-in chat.
More widely used
15k
#8
Tana Knowledge
Outliner workspace that stores notes, tasks and meeting transcripts as linked nodes with typed fields, plus an assistant that acts on them.
Free planAlso: Agents, Workflow automation
11.4k
Active
From $20/user/mo
2021
#9
Stashr Knowledge MCP · sign-in
Saves bookmarks from any platform, tags them with AI, and makes them searchable for you or your agents.
Free planMore widely used
68
Active
From $6/mo
#10
Agentage Memory Knowledge MCP · open
Stores plain markdown memory files in an EU-hosted account and shares them with Claude, ChatGPT, Cursor and Claude Code over MCP.
Own MCP server
190
Active

← Plurality Network: the full card All Knowledge tools →

How this list is made: the words Plurality Network is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.