One shared, durable memory for your AI coding agents — local-first, zero-dependency.
Most knowledge and memory work still happens through a UI a human drives. Yggdrasil MCP server moves it into the conversation instead. One shared, durable memory for your AI coding agents — local-first, zero-dependency.
Stop re-explaining your project to every new AI session.
Configuration is passed through the environment: YGG_ENGINE_URL, YGG_EMBED_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.
This sits in the knowledge and memory group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. It is maintained by VonderVuflya; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
{
"mcpServers": {
"yggdrasil": {
"command": "npx",
"args": ["-y", "yggdrasil-memory"],
"env": {
"YGG_ENGINE_URL": "your-value",
"YGG_EMBED_API_KEY": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| YGG_ENGINE_URL | Endpoint or connection string the server talks to. | Yes |
| YGG_EMBED_API_KEY | Credential the server authenticates with. | Yes |
A knowledge graph your assistant keeps between sessions — entities, relations and observations that persist.
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Your workspace, on speaking terms with AI — search, read and write Notion pages and databases.
A structured scratchpad for hard problems — stepwise reasoning with revisions, branches and visible logic.
Symbol-level code navigation, refactoring and memory for coding agents — the IDE brain your assistant has been missing.
Chat with your second brain — search, read and write vault notes through the Local REST API.