
World Anvil
Kanka.io
Obsidian Portal
Story Planner for Writers
Fantasia Archive
WorldSmith
Realm Works
LegendKeeper makes it easy to build immersive worlds for stories and RPG campaigns.

Mem0
Memori
Agentmemory
Tempreon
cognee
TheSecondBrain.dev
Suprflo
Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client
Which is more popular?
Based on our record, LegendKeeper seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | legendkeeper.com | chainmemory.ai |
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In their own words, as submitted to SaaSHub.


No description of LegendKeeper yet.
ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor. Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


No analysis of LegendKeeper yet.
Overall verdict
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Recommended for
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Legendkeeper 2022 Overview & Tutorial
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using LegendKeeper and ChainMemory. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I use legendkeeper.com, which costs a few bucks a month, but if you or someone else at the table is handy with web tech it's very easy to set up a basic wiki for free on someone's web server. Source: over 3 years ago
You should check out [LegendKeeper](http://legendkeeper.com/) (there's a trial) where you can create articles and link between them. You can also do visual linking for relationships, and have maps with pins on them for locations. Source: over 3 years ago
Sweet. I've been accomplishing the same map and pin thing using legendkeeper but I have to pay for that + it's a web app, so definitely going to add leaflet to my obsidian and give that a shot instead. thanks! Source: almost 4 years ago
Tracking ChainMemory since Jul 2026.
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World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
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Persistent memory from agent trace, not just conversation
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Obsidian Portal takes the pain out of managing your tabletop RPG
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Persistent memory for Claude Code, Codex & coding agents
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