AgentIndex icon
AgentIndex
Cortex logo
Cortex
★ 75
vs
second-brain-cloudflare logo
second-brain-cloudflare
★ 818

Cortex vs second-brain-cloudflare

Cortex: Cortex is an MCP server that gives Claude Code persistent memory inspired by neuroscience. It automatically captures, consolidates, and surfaces relevant context, achieving state-of-the-art retrieval benchmarks across multiple datasets.; second-brain-cloudflare: Second Brain is a self-hosted MCP server on Cloudflare Workers that provides a persistent memory layer for AI tools like Claude, ChatGPT, and Cursor. It allows storing, searching, and recalling information across conversations with semantic search and recency bias. Deployable with one click on Cloudflare's free tier.

01

TL;DR

Cortex logo
CortexMemory & Context · ★ 75

Long-term project memory and context retention across sessions

Read Cortex full review →
second-brain-cloudflare logo
second-brain-cloudflareMemory & Context · ★ 818

Give Claude a persistent memory across sessions

Read second-brain-cloudflare full review →
02

Side-by-Side Comparison

Field
Cortex logoCortex
second-brain-cloudflare logosecond-brain-cloudflare
Category
Memory & Context
Memory & Context
Stars
★ 75
★ 818
License
MIT
MIT
Install Command
claude plugin marketplace add cdeust/Cortex && claude plugin install cortex
git clone https://github.com/rahilp/second-brain-cloudflare.git
Updated
1d ago
1w ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
agent-memory-system, agent-skills, artificial-intelligence
ai-memory, claude, claude-ai
03

Features

Cortex logoCortex
01Automatic memory capture and learning from user interactions
02Intelligent retrieval fusing five signals (vector, full-text, trigram, heat, recency)
03Neural graph visualization for exploring memory and connections
04Team memory system with transactive memory and agent specialization
05Neuroscience-based algorithms with published paper citations
second-brain-cloudflare logosecond-brain-cloudflare
01Store anything with `remember`
02Append updates without duplicates
03Semantic search with recency bias via `recall`
04Browse recent memories chronologically
05Delete entries and chunks with `forget`
04

Use Cases

Cortex logoCortex
↳Long-term project memory and context retention across sessions
↳Multi-agent team coordination and knowledge sharing
↳Efficient code development assistance with context-aware recall
second-brain-cloudflare logosecond-brain-cloudflare
↳Give Claude a persistent memory across sessions
↳Store project context and decisions for AI assistants
↳Capture ideas and notes from any MCP-compatible client
05

Best For

Cortex logoCortex
—
second-brain-cloudflare logosecond-brain-cloudflare
Trending
FAQ

FAQ

What is the difference between Cortex and second-brain-cloudflare?
Both Cortex and second-brain-cloudflare are in the Memory & Context category. Cortex has 75 stars, while second-brain-cloudflare has 818 stars.
Which is better, Cortex or second-brain-cloudflare?
The best choice depends on your use case. Choose Cortex if Long-term project memory and context retention across sessions, and second-brain-cloudflare if Give Claude a persistent memory across sessions.
Is Cortex free or open source?
Yes, Cortex is open source on GitHub (MIT).
Is second-brain-cloudflare free or open source?
Yes, second-brain-cloudflare is open source on GitHub (MIT).
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Related

Alternatives to Cortex →Alternatives to second-brain-cloudflare →Cortex details →second-brain-cloudflare details →