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Yggdrasil
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Yggdrasil

Active·★ 22·AGPL-3.0·Updated 2026-10-22

Yggdrasil provides a local, always-on memory for AI agents like Claude Code and Codex, allowing them to retain project context, decisions, and lessons across different sessions and projects. It ensures AI assistants never forget past interactions, offering cross-project recall and persistent knowledge without sending data to the cloud.

#Local Memory#AI Agent#Persistent Context#Cross-Project Recall#Semantic Search#Zero-Dependency
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#LLM Integration
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$ Install
$ uvx --from yggdrasil-memory ygg install
↗ Visit site★ GitHub
01

Features

01Persistent memory across sessions, tools, and projects.
02Shared memory for Claude Code, Codex, and other MCP agents.
03Cross-project recall to reuse past solutions and decisions.
04100% local operation with no cloud dependency or telemetry.
05Zero-dependency default mode using SQLite + FTS5 for keyword search.
02

Compatibility

AI Agents
Integration
Verified via docs
Python
Runtime
Verified via docs
macOS
OS
Verified via docs
Linux
OS
Verified via docs
Windows
OS
Verified via docs
Ollama
Model Runtime
Verified via docs
03

Quick start

1
$ uvx --from yggdrasil-memory ygg install
04

Use cases

↳Prevent AI agents from forgetting project context in new sessions.
↳Allow AI agents to leverage decisions and lessons learned from other projects.
↳Consolidate existing knowledge sources (e.g., transcripts, Obsidian vaults) into a unified memory.
↳Provide a consistent identity and persona for AI assistants across tools.
05

Alternatives

⚡Top VS:
VSmemora★744→VSditto★298→VSmnemo-cortex★159→VS

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On this page
01Features02Compatibility03Quick start04Use cases05Alternatives
wavescope-mcp
★45
→
memora logo
memora★ 744
Give your AI agents persistent memory.
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ditto logo
ditto★ 298
Mine your Claude Code and Codex logs into a local you.md agent profile.
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mnemo-cortex logo
mnemo-cortex★ 159
Open-source cognitive coprocessor with active memory for AI agents — persistent recall, semantic search, overnight dreaming, verified facts, encrypted USB sync. MCP server; works with Claude, ChatGPT, and any local LLM. Built by one maker and his agents.
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wavescope-mcp★ 45
Wavelet-based multi-resolution context management for LLMs via MCP
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brain.md logo
brain.md★ 34
Local-first markdown notes with a first-class MCP server. 16 tools + 2 resources for Claude Code, Claude Desktop, Cursor and any MCP agent. Per-folder permissions, semantic RAG via LanceDB, single Bun binary. AGPL.
VSCompare→
rlm-claude logo
rlm-claude★ 39
Recursive Language Models for Claude Code - Infinite memory solution inspired by MIT CSAIL paper
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infimium-agent logo
infimium-agent★ 25
Infimium helps agents find the right code, docs, and dependencies — before they edit. Local-first, open-source, MCP-compatible.
VSCompare→
solomd logo
solomd★ 1.3k
A markdown editor — and the bridge to your LLM. Local-first, MIT, ~15 MB. Bundled MCP server lets Claude Code / Codex / Cursor drive your vault directly. 14 AI providers BYOK.
VSCompare→
See all alternatives →
VonderVuflya /
Yggdrasil
↗

Durable, local-first memory for AI coding agents over MCP — zero-dependency, curated & semantically de-duped, you own the data (SQLite + Markdown). Works with Claude Code, Codex & any MCP host.

22AGPL-3.0
Last commit1d ago
StatusActive
CategoryMemory & Context
Links
Documentation↗Discussion↗Issues↗Releases↗
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