AgentIndex icon
AgentIndex
perseus-vault logo
perseus-vault
★ 72
vs
deja-vu logo
deja-vu
★ 1.3k

perseus-vault vs deja-vu

perseus-vault: Perseus Vault provides durable, encrypted, local-first memory for AI agents, operating as a single Rust binary with zero dependencies. It integrates seamlessly with popular AI agent frameworks like LangGraph, CrewAI, and AutoGen, offering advanced features like hybrid semantic search, bitemporal queries, and a robust memory lifecycle.; deja-vu: Deja-vu is a zero-dependency, local-first binary that indexes and makes searchable the historical sessions of various AI coding agents. It acts as a universal memory layer, allowing agents to recall past solutions and context efficiently, even from before its installation.

01

TL;DR

perseus-vault logo
perseus-vaultMemory & Context · ★ 72

Provide durable, persistent memory for AI agents across sessions.

Read perseus-vault full review →
deja-vu logo
deja-vuMemory & Context · ★ 1.3k

Reusing solutions from past agent conversations to avoid re-debugging or re-implementing.

Read deja-vu full review →
02

Side-by-Side Comparison

Field
perseus-vault logoperseus-vault
deja-vu logodeja-vu
Category
Memory & Context
Memory & Context
Stars
★ 72
★ 1.3k
License
MIT
MIT
Install Command
curl -sSf https://raw.githubusercontent.com/Perseus-Computing-LLC/perseus-vault/main/scripts/install.sh | sh
curl -fsSL https://raw.githubusercontent.com/vshulcz/deja-vu/main/install.sh | sh
Updated
1mo ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
AI Agent Memory, Local-first, Persistent Storage
AI Agent Memory, Session Search, Code Assistant
03

Features

perseus-vault logoperseus-vault
01Bundled semantic search with zero configuration and network dependencies.
02Biomimetic memory lifecycle with Ebbinghaus decay, layer promotion, and automatic archiving.
03AES-256-GCM transparent encryption for stored entity data.
04Recall-first context injection with relevance gating and per-model budget.
05Multiple transport options including stdio, SSE, and HTTP for MCP clients.
deja-vu logodeja-vu
01Fast, Retroactive Session Search
02Automatic AI Agent Memory Recall
03Cross-Machine Memory Synchronization
04Seamless Agent Context Handoff
05Automated Sensitive Data Redaction
04

Use Cases

perseus-vault logoperseus-vault
↳Provide durable, persistent memory for AI agents across sessions.
↳Integrate as a memory backend for popular AI agent frameworks (e.g., LangGraph, CrewAI, AutoGen).
↳Export AI agent memories to Personal Knowledge Management (PKM) tools like Obsidian for human review and navigation.
↳Secure, air-gapped deployments requiring local-first operation and data privacy.
deja-vu logodeja-vu
↳Reusing solutions from past agent conversations to avoid re-debugging or re-implementing.
↳Debugging complex issues by accessing comprehensive past debugging sessions and design decisions.
↳Maintaining persistent context across different AI agents and development machines.
↳Sharing sanitized session digests with colleagues for onboarding or knowledge transfer.
↳Understanding file change history and decision-making via session blame.
FAQ

FAQ

What is the difference between perseus-vault and deja-vu?
Both perseus-vault and deja-vu are in the Memory & Context category. perseus-vault has 72 stars, while deja-vu has 1.3k stars.
Which is better, perseus-vault or deja-vu?
The best choice depends on your use case. Choose perseus-vault if Provide durable, persistent memory for AI agents across sessions., and deja-vu if Reusing solutions from past agent conversations to avoid re-debugging or re-implementing..
Is perseus-vault free or open source?
Yes, perseus-vault is open source on GitHub (MIT).
Is deja-vu free or open source?
Yes, deja-vu is open source on GitHub (MIT).
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Related

Alternatives to perseus-vault →Alternatives to deja-vu →perseus-vault details →deja-vu details →